Convert BMP & JPEG to DXF/DWG – How to Vectorize Images with Inkscape

In this step-by-step guide, you’ll learn how to convert bitmap images (BMP, JPEG, PNG, etc.) into CAD-compatible vector files (DXF / DWG) using the free software Inkscape.
Perfect for CNC projects, laser engraving or technical drawings.

🖼️ Why Vectorization Matters

• Raster images (BMP, JPEG) are pixel-based and lose sharpness when scaled.
• Vector graphics use paths — always perfectly scalable.
• Ideal for CNC, laser cutting and engraving where clean contours are essential.

✅ What Is Inkscape?

Inkscape is a free, open-source vector graphics program under the GPL license for Windows, macOS and Linux.
It offers:

• Import of BMP, JPEG, PNG and SVG
• Automatic vectorization via Path → Trace Bitmap
• Export to DXF or SVG for CAD workflows

🔁 Step-by-Step: BMP/JPEG → DXF

1. Import file: Open your BMP or JPEG in Inkscape (File → Import).
2. Create vector: Select the image and open Path → Trace Bitmap.
3. Choose settings:
   Use “Brightness cutoff” for technical drawings
   or “Multiple scans” for colored images.
4. Clean up vector: Delete the original bitmap and simplify the vector using Path → Simplify.
5. Export: Save via File → Save As → DXF (AutoCAD R14).

🧩 Further Editing with LibreCAD

With LibreCAD you can check, clean up, and export your DXF files as DWG.
Perfect for removing unwanted lines or verifying measurements.

⚙️ Tips for Clean Vectors

• Edit your image beforehand in GIMP (contrast, brightness, black & white).
• Use Inkscape’s “Remove background” or “Stack scans” for better results.
• The higher the contrast, the more precise the vectorization.

📊 Raster vs Vector Comparison

💡 Why Inkscape Is Ideal

Inkscape gives you a free, professional vectorization tool — perfect for makers, hobbyists and professionals.
It’s fast, easy to use and works on every system.

🧰 Additional Tools

• GIMP: Pre-editing of images
• LibreCAD: Post-editing & DWG export
• Scan2CAD: Automatic online vectorization

Conclusion: With Inkscape, you can convert raster graphics like BMP or JPEG into precise DXF vector files — free and with professional results.
Find even more files to practice with in our DXF downloads.