If you run a small engineering or architectural firm, you probably have a folder somewhere on a network drive that everyone calls “the archive.” It holds ten, twenty, sometimes thirty years of DWG and DXF files. And every few weeks, the same thing happens: someone needs to find a specific drawing from 2014, no one remembers the exact filename, and an hour disappears while a designer opens files one by one in AutoCAD trying to recognize them.

The cost of this shows up as billable hours lost to file-by-file searches, wrong revisions attached to client proposals, and tribal knowledge that walks out the door with departing employees. The drawings themselves are valuable assets — years of paid work and reusable detail libraries. Treating them as an opaque pile of files wastes that value every day.

The solution is conceptually simple. Generate a preview image for every CAD file in the archive. Display those previews in Windows Explorer, on an intranet page, or inside a document management system. Suddenly the archive is searchable by eye, and finding old work takes seconds instead of an hour. The hard part is doing it in batch, without buying an AutoCAD license for every employee who might need to look at a drawing.

Why generating DWG previews is harder than it looks

If preview generation is so useful, why doesn’t every firm already have it? Because the obvious solutions all have problems that only become visible after you try them.

The AutoCAD licensing problem

AutoCAD itself can generate thumbnails and previews. So can AutoCAD LT. But an AutoCAD LT subscription runs around 500 USD per seat per year, and that’s only for viewing and basic editing. If only your designers need to actually edit drawings, but five other people in the office occasionally need to look at them, you’re either buying licenses you don’t really need, or those five people keep interrupting the designers.

Autodesk does offer DWG TrueView as a free viewer, and it does add Windows Explorer thumbnails on machines where it’s installed. For a single user this is fine. For automated batch processing across a 40,000-file archive, building previews for a web portal or DMS, or generating previews on a server with no GUI session, it’s the wrong tool.

Why online viewers are off the table for most firms

Cloud CAD viewers such as Autodesk Viewer or DWG FastView are useful for collaboration and file sharing, but they are less practical for large legacy archives.

Many engineering firms cannot freely upload client drawings due to NDAs, internal policies, or industry regulations. In addition, most cloud viewers are designed for opening individual files rather than batch-processing tens of thousands of drawings into a searchable preview library.

For archive management, local batch preview generation is often simpler and easier to maintain.

The “just write a script” trap

The third path most firms consider is writing a script using the AutoCAD .NET API, ODA libraries, or a Python toolchain. This works if you have a developer. Most small firms don’t, and custom scripts tend to break silently when DWG versions change or when someone upgrades the server. Six months later no one remembers how the script works, and the preview pipeline quietly stops producing anything for new files.

What you actually need from a CAD preview workflow

Before picking a tool, it helps to make the requirements explicit. A workable batch CAD preview system for a small firm needs to:

1. Process files in batch, ideally thousands at a time, without manual clicking
2. Run on a standard Windows machine without requiring AutoCAD installation
3. Support DWG, DXF, and ideally older or related formats like DWF, HPGL, and PLT for legacy archives
4. Output common image formats (PNG, JPG) for thumbnails, plus PDF for sharing and SVG for high-quality web previews that scale on screen
5. Automate itself — watch a folder, process new files as they arrive, no scheduled human intervention
6. Handle errors gracefully so one bad file doesn’t stop the whole batch
7. Stay on premises, with files never leaving the company network

This list also functions as a buying checklist. Any tool that can’t tick most of these boxes isn’t really solving the problem; it’s just shifting work around.

How reaConverter handles batch CAD preview generation

reaConverter is a Windows batch file conversion tool that has been developed for over twenty years. It supports more than 800 input and output formats, including the CAD formats that matter for archive work: DWG, DXF, DWF, HPGL, PLT, and several others. For the use case described here, the Pro edition is what you need, because batch automation and watched folders are Pro features.

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Supported input and output formats

On the input side, reaConverter reads DWG and DXF files from AutoCAD versions going back to early releases, plus DWF, HPGL/2, PLT, and other 2D CAD formats commonly found in legacy archives. This matters more than it sounds. Most archives accumulate files from different CAD tools over the years, and a preview system that only handles current AutoCAD versions leaves a chunk of the archive invisible.

On the output side, you can generate previews in any image format reaConverter supports. For a typical preview workflow, three outputs cover almost everything:

• PNG or JPG thumbnails for Windows Explorer, file managers, and most document management systems
• SVG for web-based preview interfaces where users may want to zoom into the drawing
• PDF for archival and sharing with clients who don’t have CAD software

You can output more than one format from a single conversion job. A common setup generates a small JPG thumbnail and a larger PDF for every DWG, both saved alongside the original.

Automating the workflow

This is where reaConverter Pro earns its keep. There are two automation modes that matter for archive work.

Watched folders monitor a directory continuously. When a new DWG file lands in the folder, reaConverter processes it automatically using a saved conversion profile and writes the output wherever you’ve configured. For an active project archive where designers save new drawings throughout the day, a watched folder means previews appear within seconds of a file being saved, with no scheduled jobs and no human involvement.

Command-line operation runs reaConverter as a CLI tool. This is what you want for the initial bulk conversion of an existing archive, and for any workflow that fits better into Windows Task Scheduler or a server-side script. A nightly job that processes the day’s additions, or a one-off command that converts the entire historical archive over a weekend, both work cleanly from the command line.

Together these two modes cover the realistic shape of an archive: a large historical backlog that needs a one-time bulk conversion, plus a continuous stream of new files that need previews generated as they arrive.

Adding OCR for scanned legacy drawings

There’s a bonus use case worth mentioning, because almost every firm older than fifteen years has it. Somewhere in the archive there are scanned PDFs and TIFFs of paper drawings from the pre-CAD era, or from acquired companies, or from projects where the originals were lost. These files are technically in the archive, but they’re functionally invisible — you can’t search their contents, and visual thumbnails of scanned blueprints often look identical to each other.

reaConverter includes OCR. You can batch-process scanned drawings to extract the text — title blocks, revision tables, notes — and either embed it back into a searchable PDF or output it as a text file alongside the original. Combined with preview generation, this turns a pile of opaque scans into searchable, browsable assets. It’s the same workflow as the DWG preview pipeline, just with a different input type.

Where this approach fits, and where it doesn’t

Honest limitations matter here. A preview system that promises to handle everything will disappoint at the worst possible moment.

reaConverter works well for:

• 2D architectural and engineering drawings (the bulk of most firms’ archives)
• Standard mechanical part drawings and assembly views
• Civil, structural, and electrical drawings
• Mixed archives with multiple CAD formats and legacy scanned documents
• Throughput in the thousands to tens of thousands of files

reaConverter is not the right tool for:

• Very large 3D assemblies — full automotive models, complex aerospace assemblies, large BIM coordination models with millions of polygons. These need a dedicated CAD or visualization platform.
• Drawings that depend heavily on custom AutoCAD object enablers (AutoCAD Architecture, Civil 3D, Plant 3D specialty objects may render in simplified form)
• Drawings with broken or missing xrefs — these will preview, but the preview will be missing the xref content, same as in any non-AutoCAD tool

If your archive is mostly 2D drawings with the occasional 3D model, reaConverter handles the realistic 90% case. If your work is large 3D assemblies, this isn’t the right tool, and that’s worth knowing before you invest setup time.

A practical setup for a 50,000-file CAD archive

Here’s a concrete recipe for a small firm with a multi-year archive that needs preview generation set up in an afternoon.

Step 1: Install reaConverter Pro on a single machine. This can be an existing workstation that’s left on overnight, or a small server. No special hardware is needed for 2D CAD work.

Step 2: Create a conversion profile. Open reaConverter, add a sample DWG file from your archive, and configure the output: typically a 1024×768 JPG thumbnail and a PDF. Save this as a named profile (for example, archive_preview). The profile captures every setting, so subsequent runs are reproducible.

Step 3: Run the initial bulk conversion. Point reaConverter at the root of your archive and let it process everything once. For a 50,000-file archive of typical 2D drawings, plan for this to run overnight or across a weekend depending on the machine. Use the command-line mode if you want to script it or run it on a server.

Typical performance on a mid-range Intel i7 workstation:

• ~3–5 standard 2D DWG previews per second
• ~8–10 hours for a 50,000-file archive
• Typical PNG preview size: ~100–150 KB per drawing

Step 4: Set up a watched folder for ongoing files. Once the historical archive is converted, configure a watched folder on the directory where new drawings are saved. From this point forward, every new DWG that designers save gets a preview generated automatically.

Step 5: Make the previews discoverable. This is where preview output meets your existing infrastructure. The simplest setup just stores PNG thumbnails in a parallel folder structure mirroring the archive, which Windows Explorer can browse directly. More ambitious setups feed the previews into a document management system, an intranet page built on a simple file index, or a tool like Daminion that’s designed for visual file libraries.

The result, after one afternoon of setup and one weekend of bulk processing, is that the whole archive becomes browsable by eye, and stays that way without further intervention.

Frequently asked questions

Does reaConverter require AutoCAD to be installed?

No. reaConverter reads DWG and DXF files natively and does not require AutoCAD, DWG TrueView, or any other Autodesk software to be present.

What CAD formats can reaConverter generate previews from?

The main supported inputs for CAD preview work are DWG, DXF, DWF, HPGL/2, and PLT. The full format list is broader, but those are the ones that matter for typical engineering and architectural archives.

Can reaConverter generate SVG previews of DWG files?

Yes. SVG is among the supported output formats, which makes it useful for web-based preview interfaces where users may want to zoom into the drawing without losing quality.

How does Watch Folder automation actually work?

You configure a folder for reaConverter Pro to monitor. When a file matching your filter appears in that folder, reaConverter applies the conversion profile you’ve assigned and writes the output to the configured destination. The whole process runs in the background and does not require a user to be logged in interactively, depending on how it’s set up to run.

Is there a licensing limit on how many files can be processed?

No. A reaConverter Pro license is a one-time purchase that allows unlimited file processing on the licensed machine. There are no per-file or per-batch fees.

reaConverter Pro is available as a one-time purchase Windows license. For firms maintaining large legacy archives, the time savings are usually immediate.

Download reaConverter Pro

Why convert DWG to DXF?

DWG is the native binary format of AutoCAD. It’s powerful, but proprietary. When you need to share drawings with partners who use SolidWorks, BricsCAD, FreeCAD, LibreCAD, or any non-Autodesk CAD tool, the proprietary DWG container becomes a bottleneck. DXF (Drawing Exchange Format) was designed specifically to solve this: it’s an open, documented interchange format that virtually every CAD program can read and write.

Common real-world scenarios where DWG → DXF conversion is essential:

• Cross-platform collaboration with partners who use SolidWorks, BricsCAD, FreeCAD, or other non-Autodesk CAD tools.
• CNC and laser cutter pipelines that accept only DXF input.
• Archival and compliance requirements where an open format avoids vendor lock-in.
• Automated production workflows where DWG files must be converted before entering a review or manufacturing system.

If you’re converting one or two files, an online tool might do. But when the job involves hundreds of drawings on a recurring basis, you need batch automation that runs offline, keeps your intellectual property on your hardware, and doesn’t require an expensive AutoCAD seat.

That’s where reaConverter comes in.

DWG vs DXF — quick reference

What you’ll need

• reaConverter Standard edition is enough for GUI batch conversion. For Watch Folders and command-line automation, you’ll need Pro. See the DWG to DXF conversion page for a quick overview of what’s supported.
• Your .dwg files. reaConverter supports all AutoCAD versions from R12 through the latest releases.
• No AutoCAD installation is required at any point.

Method 1 — Batch conversion in the GUI

This is the fastest way to convert a folder of DWG files interactively.

Step 1. Add your DWG files

Launch reaConverter and load your drawings. You can:

• Drag-and-drop files or entire folders from Windows Explorer.
• Use the Add Files or Add Folder buttons on the toolbar.
• Right-click DWG files in Explorer and choose Convert with reaConverter from the context menu.

reaConverter reads DWG natively, no CAD software needed. The file list shows previews, page count, and size for every drawing.

Step 2. (Optional) Configure DWG loading settings

Before converting, you can fine-tune how drawings are read:

• Layout selection: convert Model Space only, all Paper Spaces, or all layouts. Look for the DXF/DWG/DGN loading settings in the Settings panel on the left side of the main window.
• Grayscale: render the drawing in grayscale if color is not needed downstream.
• Layer extraction: split each layer into a separate output file.

These settings are especially useful when your DWG files contain multiple layouts and you only need the Model Space geometry.

Step 3. Choose DXF as the output format

In the bottom panel, set Save as → DXF. Click the gear icon next to DXF to open format-specific settings:

• DXF version: choose from AutoCAD 12, 13, 14, 2000, 2004, 2007, 2010, or 2013. If unsure, AutoCAD 2000 offers the best balance of compatibility and feature support.
• Units: millimeters or inches.
• Text handling: save as text or convert to polygons (useful when downstream tools have font substitution problems).
• Splines: enable or disable spline output.

Step 4. Set the destination folder

Choose where converted DXF files should be saved. You can keep the same folder structure as the source, save everything to a flat folder, or use reaConverter’s subfolder naming options.

Step 5. Click Convert

Hit Convert and reaConverter processes every file in the queue. The conversion log shows the status of each drawing. When done, click Show converted files to jump straight to the output folder.

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Method 2 — Watch Folders (fully automated, zero clicks)

Watch Folders turn any Windows directory into a self-converting hot folder. Drop a DWG file in → a DXF file appears in the output directory. No interaction needed.

This is the ideal setup for:

• Engineering offices where designers save DWG files to a shared network folder and downstream teams need DXF.
• CNC / fabrication pipelines where an operator drops files for cutting.
• Any recurring workflow where manual conversion is a bottleneck.

How to set it up

1. Open reaConverter and go to Menu → Watch Folders → Add new folder…
2. Set the Source folder — this is the directory reaConverter will monitor, for example C:\CAD\DWG_inbox\.
3. Set the Output folder — for example C:\CAD\DXF_ready\.
4. Choose DXF as the output format and configure version, units, and other settings as described in Method 1.
5. Click Start Watching.

From now on, every DWG file that lands in the source folder will be automatically converted to DXF and placed in the output folder. It doesn’t matter how the file got there: copied manually, saved by a CAD tool, or synced from the network.

reaConverter keeps running in the background and can monitor multiple folder pairs simultaneously.

Tip: Use “Subfolder of source folder” output option combined with “Read subfolders” to maintain your directory structure while keeping originals separate from converted files.

For a detailed walkthrough, see the dedicated guide: A Beginner-Friendly Guide to reaConverter’s Watch Folders.

Method 3 — Command-line conversion

reaConverter Pro includes cons_rcp.exe, a full-featured command-line tool. It accepts the same parameters as the GUI and can be called from batch scripts, CI/CD pipelines, PowerShell, or Task Scheduler.

Basic single-file conversion

cons_rcp.exe -s "C:\Drawings\floorplan.dwg" -o "C:\Output\floorplan.dxf"

Batch convert an entire folder

cons_rcp.exe -source_folder "C:\Drawings\" -source_ext dwg -dest_path "C:\Output\" -dest_ext dxf

This converts every .dwg file in the source folder and saves each one as .dxf in the output folder.

With subfolders

cons_rcp.exe -source_folder "C:\Drawings\" -source_ext dwg -dest_path "C:\Output\" -dest_ext dxf -read_subfolders 1

Set the output DXF version

Use -dxf_version to target a specific AutoCAD version:

Convert to AutoCAD 2000 DXF format:

cons_rcp.exe -source_folder "C:\Drawings\" -source_ext dwg -dest_path "C:\Output\" -dest_ext dxf -dxf_version 4

Control layout output

Use -dxf_dwg_layout to specify which layout to convert:

Export only Model Space:

cons_rcp.exe -source_folder "C:\Drawings\" -source_ext dwg -dest_path "C:\Output\" -dest_ext dxf -dxf_dwg_layout 1

Additional useful parameters

• -dxf_text 1 — preserve text as editable text (use 0 to convert text to polygons).
• -dxf_spline 1 — include splines in the output DXF.
• -dxf_units 1 — set output DXF units to millimeters (2 for inches).
• -dxf_dwg_gray 1 — convert the drawing to grayscale.
• -dxf_dwg_extract_layers 1 — extract each layer as a separate DXF file.
• -overwrite 1 — overwrite existing files instead of skipping them.
• /hide — run silently (no console window), ideal for scheduled tasks.

Full production example

Convert all DWG files (including subfolders) to AutoCAD 2000 DXF, Model Space only, with splines, millimeters as units, and overwrite existing output:

cons_rcp.exe -source_folder "D:\Projects\2026\CAD\" -source_ext dwg -dest_path "D:\Projects\2026\DXF\" -dest_ext dxf -read_subfolders 1 -dxf_version 4 -dxf_dwg_layout 1 -dxf_spline 1 -dxf_units 1 -dxf_text 1 -overwrite 1

Automate with Windows Task Scheduler

Save the command above as a .bat file and schedule it to run nightly, weekly, or at any interval. Add /hide to suppress the console window. Use > log.txt to capture the conversion log:

cons_rcp.exe -source_folder "D:\Projects\2026\CAD\" -source_ext dwg -dest_path "D:\Projects\2026\DXF\" -dest_ext dxf -dxf_version 4 /hide > "D:\Logs\dwg_to_dxf_log.txt"

For the full CLI reference, see: Command-line Interface for Developers.

Troubleshooting

Layers missing after conversion? Check the layout setting. If you’re exporting only Model Space (-dxf_dwg_layout 1) but your geometry lives in a Paper Space layout, switch to All Layouts (0) or All Paper Spaces (2).

Text looks wrong or is replaced by boxes? The target system may not have the fonts used in the DWG. Two options: set -dxf_text 0 to convert text to polygons (preserves appearance but loses editability), or install matching SHX / TTF fonts on the receiving machine.

File size significantly larger than original? This is expected. DXF (especially ASCII DXF) is less compact than binary DWG. If size matters, check whether your downstream tool accepts binary DXF. reaConverter outputs ASCII DXF by default for maximum compatibility.

Which reaConverter edition do I need?

Conclusion

Converting DWG files to DXF doesn’t require AutoCAD, doesn’t require uploading your proprietary drawings to the cloud, and doesn’t have to be a manual file-by-file task. reaConverter handles the job in three ways: GUI batch, Watch Folders, and command line. Whether you need a one-off conversion or a fully automated 24/7 pipeline, you’re covered.

For engineering firms, architecture studios, fabrication shops, and anyone working with CAD drawings at scale, this is the workflow that eliminates the bottleneck. Already know what you need? Head straight to the DWG to DXF converter page to download or try online.

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Ready to automate your DWG → DXF workflow? Grab the free trial and convert your first batch in under a minute.

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reaConverter can easily transform complex 3D models into clean 2D projections. This powerful feature
converts three-dimensional CAD files into flat technical drawings or illustrations, perfect for
documentation, manufacturing, and presentation purposes.

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What are 2D Projections?

A 2D projection is a flat image of a 3D object, such as a machine part, building, or product. It works like a shadow on the ground or a sketch of a 3D scene on paper. This makes it easy to show the shape and details of a model without needing special 3D software.

reaConverter can easily and automatically generate standard engineering views from your 3D models:

• View 1 – Isometric: 3D perspective showing width, height, and depth
• View 2 – Top: Plan view looking down from above
• View 3 – Front: Elevation view from the front
• View 4 – Side: Profile view from the right side

You can also choose whether hidden edges should be displayed as dashed lines for a technical look, or removed for a simpler, cleaner result.

How to Convert 3D Models to 2D Projections

Easily generate 2D projections from your 3D models using reaConverter. Follow these steps:

1. Add Files

Drag and drop your 3D model files into reaConverter. You can process even large batches at once to quickly create multiple 2D projections.

2. Configure 3D Settings

Configure how your 3D models will be converted into 2D projections by choosing view types and display options.

• Go to Loading settings → 3D formats loading settings
• Enable “Create 2D projection”
• Choose projection type (Views 1-4)
• Set hidden line visibility

Preview result:

3. Select Output Format

Choose the output format for your 2D projections. reaConverter supports many options, including JPG and PNG for images, or DXF and DWG for CAD drawings, giving you the flexibility to use and share your files however you need.

You can also set quality options, adjusting resolution, DPI, or vector precision to get the results you want.

4. Convert

Convert your 3D models into 2D projections with a single click. Just hit Convert, and reaConverter quickly generates your images or CAD drawings, ready for use or sharing.

Practical Use Cases

reaConverter turns 3D models into 2D visuals for technical drawings, CNC/laser cutting, e-commerce product images, educational graphics, and design documentation.

Technical Documentation and Manufacturing

Convert 3D CAD models into standard orthographic projections for technical drawings, assembly
instructions, and manufacturing documentation. Generate front, top, side, and isometric views
automatically – the same views typically created manually in CAD software like AutoCAD or SolidWorks.

Laser Cutting and CNC Machining

Extract 2D cutting profiles from 3D parts for manufacturing processes. DXF output provides precise
toolpaths for laser cutters, waterjet machines, and CNC routers. The vector format preserves exact
dimensions and geometric relationships required for accurate manufacturing.

Product Marketing and E-commerce

Create clean product illustrations for catalogs, websites, and marketing materials. Generate consistent
product views without complex 3D rendering software. Particularly useful for technical products, furniture, machinery, and consumer goods where clear geometric representation is more important than
photorealistic rendering.

Educational Materials

Develop technical drawings for engineering education, showing cross-sections, elevations, and standard
views that help students understand 3D geometry through traditional 2D engineering graphics principles.

Design Documentation

Integrate into CAD workflows where 3D models need accompanying 2D documentation. Automatically
generate drawing views for design reviews, client presentations, and regulatory submissions.

Automation

reaConverter makes 2D projection creation even easier with automation. Use command line options or Watch Folders to automatically generate 2D projections from 3D models, perfect for batch processing or integrating into production workflows. With simple command parameters, you can enable 2D projection mode, choose the view type, and decide whether to show hidden lines – all without manual intervention.

Conclusion

The 2D projection feature in reaConverter makes it easy to turn 3D CAD models into traditional 2D technical drawings. It automatically generates standard orthographic and isometric views, removing the manual effort usually needed to create professional technical illustrations.

Whether you need manufacturing drawings for CNC machining, product illustrations for marketing, or
educational diagrams for training materials, the 2D projection feature provides professional results with
minimal setup. The combination of multiple projection angles, industry-standard output formats
(DXF/DWG), and command-line automation makes this tool valuable for both individual designers and
production environments processing hundreds of models.

For CAD professionals already working with STEP, IGES, and other 3D formats, this feature integrates
seamlessly into existing workflows while dramatically reducing the time required to generate 2D
documentation from 3D designs.

Install reaConverter

DWG and DXF are two of the most widely used graphics formats in the construction and engineering industry. They are usually created via AutoCAD, the popular software for drafting 2D and 3D computer-aided design projects, and they store large layered files with detailed building plans, maps, model designs etc. DXF represents the interchange version of DWG and both formats are scalable vectors storing images as polygons.

Converting a graphics file to DWG or DXF normally implies saving all its embedded images and texts as polygons. But with reaConverter’s latest edition this feature can be customized, allowing you to save text not as polygon, but as editable text. This not only helps decrease file size, but also offers easier editing options. And it can be done with only a few clicks!

Install reaConverter

Load your files

Add all the images you intend to convert to DWG or DXF. They can be added one by one or in groups using the drag-and-drop tool, or they can be selected automatically according to file size / extension using the Advanced file select option.

Set saving settings

Go to Menu → Saving settings → Format saving settings and then to the DWG or DXF tab. Here you only have to untick the box next to Convert text to polygons.

This window can also be reached via a handy shortcut: place the pointer over the DWG or DXF button, from the lower part of the screen, and click the Settings icon appearing in its upper left corner. You can also choose a particular Autocad version here to ensure compatibility of the resulting images.

Choose destination and output

Finally, in the Saving options tab decide where you want to save the output files. Before starting the conversion process, don’t forget to select the DWG or DXF button from the Convert to section, in the lower part of the window.

Then press Start and your new DWG/DXF files with embedded text will soon be ready!

Video Tutorial

Advanced users can create DWG/DXF files from command line interface or using DLL in manual, automated or scheduled mode. You are welcome to contact our technical support when you have any questions about reaConverter.

Are you an architect or a designer? Then DWG (Drawing) is probably a format you use very often. Highly popular in the construction and engineering business, DWG files store sketches and building projects, maps and geometric data. They represent the native format of AutoCAD, which is probably the best known computer-aided design software.

One of the advantages of using the DWG format is the possibility to attach referenced drawings or XREFs. These are linked to the main drawing, but the best part is they are not actually inserted into it, which means they do not add to its file size. However, when an editing or update is made to the xref drawing, it also appears in the main DWG file.

This feature is particularly useful when more than one person works at a particular drawing, and the editing of everyone involved can be coordinated in real time. Moreover, drawings can function as xrefs to more than one DWG file at the same time, and one DWG file can have multiple xrefs, which makes work easier and more productive.
As DWG files tend to be quite large and difficult to access by people who don’t have a CAD program installed, architects and designers usually convert them to PDF or other popular formats before sending them to clients or other parties involved in a project.

With reaConverter’s latest edition, this conversion also covers xrefs by default, i.e. without activating any additional setting.

Install reaConverter

How does it work?

Add one or more DWG files into reaConverter’s main window. Their attached xrefs will automatically be processed as well. Files can be added to reaConverter directly from an open window, using the drag-and-drop tool. Or they can be selected manually by browsing the hard-drive.

Start conversion

In the Saving options tab, choose the destination folder for the output files. They can be saved both offline and online, using one of supported storage cloud services.

And don’t forget to click the appropriate button in the Convert to section from the lower part of the screen. reaConverter currently supports 58 output formats, so pick the one that best fits your needs. Then simply press the Start button and soon enjoy your converted DWGs together with their linked xrefs.

Video Tutorial

Advanced users can process DWG drawings with external reference files using command line interface or DLL in manual, automated or scheduled mode. You are welcome to contact our technical support when you have any questions about reaConverter.

DWG is one of the most commonly used formats in the construction industry. Created in the 1980s as a proprietary extension of AutoCAD — probably the best known software in this business — DWG is perfect for storing design and geometric data, building project and sketches, detailed maps etc. So if you are an architect, engineer, designer or have another profession connected to constructions, you probably use this format a lot.

Though extremely practical for storing detailed representations of building details, DWG files have the downside of being extremely large and offering a relatively limited compatibility with other software. That’s why most professionals in the industry choose to convert DWG vector files to PDF — which offers significantly wider accessibility options — when sending them to clients or partners who don’t have AutoCAD installed, for example.

If you are one of those professionals who need to handle a large number of DWG to PDF conversions on a regular basis, we have some great news for you! reaConverter offers a handy solution that helps avoid repeating the same set of operations over and over again, thus saving time and effort. Using the Watch Folders feature, you can now automate your conversions in no more than 4 easy steps.

Install reaConverter

Activate the Watch Folders

First, go to the Menu button and activate the Watch Folders option by ticking ON in the dropdown menu.

Create System Folders

Next, open Windows Explorer and create an input folder and an output folder. In the first one you will store the DWG files that need to be converted, and in the second one — the resulting PDFs.

After you go through all the steps listed below, the input folder will become a “watch folder”, which means all files stored in it will automatically undergo conversion.

Set Conversion Configuration

Set your desired conversion configuration in reaConverter — i.e. click the PDF button in the lower part of the window and put the output folder you created as location for the converted files in Saving options tab.

Then go to the Menu button and click Save configuration as…

Then save your .cfg (configuration) file. In addition to the actual conversion, you can add here a series of security options related to the output PDF file.

To do so, go to Menu → Saving Setting → Format Saving Settings → PDF (or click on the upper left icon from the PDF button) and choose a password for opening the document, or grant permissions connected to editing, printing or copying the PDF.

Start the Watch Folder

Last but not least, go to the Menu button again and click Watch folders → Settings

Then load the .cfg file and assign the input folder. Now all the DWG files you drop to input folder will automatically be converted to PDF and placed in the output folder!

Video Tutorial

Advanced users can convert DWG to PDF with command line interface or DLL in manual, automated or scheduled mode. You are welcome to contact our technical support when you have any questions about reaConverter.

DWG is a proprietary format of Autocad — one of the most widely used pieces of software in the architecture, engineering and design industry. DXF is its interchange variant, meant to ease transfer, print and interoperability with other software. Converting to DWG or DXF greatly increases the amount of editing options, allowing you to handle the image using lines, points, curves and layers. And now the process no longer requires a computer-aided design program installed on your computer, but the fast and user-friendly reaConverter.

Install reaConverter

Load Raster Images

Load one or more raster files you intend to convert. From BMP, PNG and JPG to GIF and TIF, reaConverter supports an impressive number of input formats. Pick the files manually, add entire folders or add selected extensions automatically, using the Advanced file select tool.

Set Default Units

Go to the Menu button and then to Saving settings → Raster to vector conversion

Here you can pick the vectorization algorithm you intend to use and set the default unit for the output DWG/DXF files: millimeters, inches or pixels.

Apply Image Editing

Optionally, you can use the Edit images tab to increase vectorization quality with one or more options.

For example, you can turn your images into Black&White and Remove Black&White Noise. This two options can dramatically increase vectorization quality.

Save the Result

In the Saving options tab, choose the location and format of the output files. reaConverter lets you save either locally, in the source folder or another desired location. Next, pick DWG or DXF from the buttons placed in the lower part of the window. In case you don’t see them there, click the Plus button and you will see a list with all output formats supported by reaConverter.

Choose your format from the list and then simply press Start

Video Tutorial

Command Line Tool and DLL

Developers can include this feature when creating a customized solutions by operating it via command-line, using the following code line:

cons_rcp.exe -s "source_file.png" -o "output_file.dwg" -dxf_dwg_units 1

Where

-dxf_dwg_units = DXF/DWG units (1 - mm, 2 - inches, 3 - pixels (scale = 1))

You are welcome to contact our technical support when you have any questions about reaConverter.

However, not all enjoy a lot of popularity and some provide more advantages than others. For this reason, converting between 3D extensions might be a great way to improve the accessibility of your files while at the same time preserving their quality content intact. And it can be done in no more than a few clicks using reaConverter’s latest edition.

For example, conversion from STL to DWG formats can not only be done fast and easy, but also includes a series of handy customizable features. STL is a computer-aided design (CAD) 3D format used in model prototyping through stereolitography, 3D printing and computer-aided manufacturing. While supported by several software packs, STL enjoys less popularity than DWG, which is probably the most widely used format for CAD modeling. A native format for Autodesk software, DWG is supported by most CAD programs, including AutoCAD, Caddie, IntelliCAD and many others.

reaConverter’s latest edition offers several options for customizing both input and output images when converting between 3D formats, including features such as 3D image rotation or selecting the desired release of AutoCAD for the resulting image.

Install reaConverter

Start reaConverter and Load Your STL Images

Load one or more STL images into reaConverter. When dealing with lots of images, you can avoid the hassle of picking them one by one from a folder and use the “Advanced file select” option. This way you can automatically select all files with the STL extension from a folder which consists of several others as well. reaConverter also allows you to add entire folders, browse manually or use the drag-and-drop tool.

Tune 3D Formats Loading Settings

Go to the Menu button and select Loading settings → 3D formats loading settings

Here you can opt for rotating the 3D image by a desired number of degrees for each of the 3 axes. X is the horizontal axis, Y is the vertical one, while Z allows you to move the object clockwise or counterclockwise.

Choose DWG Saving Settings

Next, go back to the Menu button and select Saving settings → Format saving settings

Then pick the DWG tab and decide which release of AutoCAD you would like your output 3D files to be compatible with.

Save Your Result

Go to Saving options and decide on the destination of the output DWGs. Pick one of the handy choices for offline storage — same as source folder, subfolder or customized folder. Finally, don’t forget to select DWG as the desired output format from the buttons conveniently placed in the lower part of the window.

Then simply press Start and your newly converted 3D images will soon be ready!

Command-line interface and DLL

If you are a developer interested in including STL to DWG conversion as part of a customized software solution, reaConverter allows you to operate this feature via command-line, using a tool called cons_rcp.exe. For example, for automated batch conversion of STLs to DWGs, using different source and output folders, you can use this code line:

cons_rcp.exe -source_folder "C:\Path_to\input_folder\" -source_ext stl -dest_path "C:\Path_to\output_folder\" -dest_ext dwg


A full list of configuration parameters is available on Command Line Interface Reference Guide

Video Tutorial

You are welcome to contact our technical support when you have any questions about reaConverter.

DWG is a proprietary format of AutoCAD — probably the most popular software for drafting 2D and 3D models in the construction industry. Widely used by engineers, architects, designers and other professionals in this branch, the DWG extension is also compatible with several other computer-aided design programs, including IntelliCAD or Caddie.

Most CAD programs offer users 2 types of drafting environments. One is “model space”, where a draft model is initially sketched according to a defined representation scale, and the other is “paper space”, to which users can switch to when preparing a model for printing. The latter allows you to create several layouts, offering different views of the model. Multipage DWG files can contain both “model” pages and “paper” pages.

For easier access, storing and transferring options, DWG files will often be converted to PDFs. reaConverter’s latest edition not only allows you to process this conversion fast and easy, but also to customize the conversion of multipage DWGs to multipage PDFs, by picking one of the 3 available options: all layouts, only model space or only paper space. The feature is also available for the DXF format, which represents DWG’s interchange version, and can be operated from command-line as well.

Install reaConverter

This software can also help save a lot of time and effort by avoiding repetitive operations. Here is how to convert batch of multipage DWG images into multipage PDF documents:

Load DWG Images

Select all the multipage DWG or DXF vector files you intend to convert and drop them into the reaConverter window. You can also use the Add files button and opt for the Advanced file select option, which allows you to pick a particular type of extension only, from a source folder containing several others.

Loading Settings

Go to the Menu button and click Loading settings → Vector formats loading settings.

Here you can tick one of the available options for the multipage DWG or DXF output layout. reaConverter allows you to process all pages (all layouts), only “model” pages (model space) or only “paper” pages (all paper spaces).

Multipage Saving Settings

Go to the Menu button, click Saving settings → Multipage files…

Click Convert each multipage file to another if you want to create a multipage PDFs.

Choose PDF as Output Format

In the Saving options tab, decide where you will store the resulting images. You can use one of the available destination options — source folder, subfolders, a customized folder.

Finally, pick PDF as an output extension from the buttons placed in the lower part of the window.

PDF Settings

You can also set PDF specific settings from Menu → Saving settings → Format saving settings menu. PDF Security Settings section allows you to enter a password for opening the output PDF files and one for allowing various actions applied to it — printing, editing or copying. When you’re done, don’t forget to click OK to save your options.

Start Conversion

Then simply press Start, sit back and wait for your new multipage PDFs to be ready!

Developers can include this feature when creating a customized software solution by operating it via command-line, using the following code line:

-dxf_dwg_layout = Output layout (0 - All layouts, 1 - Model space, 2 - All paper spaces)


Video Tutorial

Advanced users can convert convert multipage DWG to multipage PDF with command line interface or DLL in manual, automated or scheduled mode. You are welcome to contact our technical support when you have any questions about reaConverter.

DXF and DWG are two popular file formats for professionals in the construction industry. Whether architects, designers or project managers, most of those involved in planning and erecting a building are familiar with these two extensions and with the software that creates them: Autocad — one of the most widely used computer-aided design program for drafting 2D and 3D building models.

DWG and its interchange version, DXF, are two of Autocad’s proprietary vector extensions and — for extended accessibility and ease of transfer or print — they might need to be saved in a grayscale version or as PDF documents. This can easily be done by most image editors and convertors, you might be thinking. Yes, that is true, but the problem is most regular editors will also rasterize the image during the process. And this will drastically limit the possibility of further editing applied to the image.

With reaConverter’s latest edition, DXF and DWG images can not only be converted to grayscale, but also maintained as vectors. This feature can be activated in no more than a few clicks and also operated via command-line.

Install reaConverter

Load Files

Add as many DXF or DWG vectors as you want into reaConvertor’s main window. You can easily use the drag-and-drop tool or find them by browsing the local hard drive.

Change Vector formats loading settings

Go to the Menu button and then click Loading settings → Vector formats loading settings.

In the newly opened window, tick the box that says Convert DXF/DWG to Grayscale. Thus the vector status of your image will be preserved and its layers will be available for further editing.

Save the Result

In the Saving options tab, pick the destination of your output images from one of the quickly selectable options — same as source folder, subfolder or another location of your choice. reaConverter also allows you to save directly online using one of the supported storage cloud services: Google Drive, Box.com, Dropbox, OneDrive. Finally, make sure the DXF or DWG are selected as output formats from the buttons placed in the lower part of the screen.

Then simply press Start and enjoy your new grayscale vectors.

In case you are a programmer looking to integrate conversion of DXF / DWG files to grayscale in a customized software solution, this feature can also be operated via command-line using the following code line:
-dxf_dwg_gray 1

Video Tutorial

Advanced users can convert convert DXF or DWG to grayscale vectors with command line interface or DLL in manual, automated or scheduled mode. You are welcome to contact our technical support when you have any questions about reaConverter.