What units is the DXF in?

None are set: one pixel of the JPG is one drawing unit. Scale the drawing after importing by measuring a length you know.

Why is there no color, and only one layer?

The DXF is traced from the picture, so it only holds outlines of the dark areas. Assign layers, line colors or cut settings in your CAD or laser software.

Will it cut on my laser?

The outlines are closed POLYLINE shapes, which LightBurn and most laser and CNC software cut as pieces. Scale it to size and remove any stray specks first.

Can I convert a photo or a 3D drawing?

A photo becomes outlines of its dark blotches, which rarely cut usefully. A picture of a 3D model gives flat outlines of what the picture shows, not a 3D model.

Why are the edges bumpy?

JPG compression leaves faint blocks around edges, and the tracer follows them. A larger, less-compressed JPG or the original scan gives smoother lines.

What happens to my files?

The JPG is uploaded over HTTPS, traced on our server and deleted automatically within 2 hours, along with the DXF.

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Runs on our server
Closed outlines for cutting
Opens in AutoCAD & LightBurn
Scale it after import

Convert JPG to DXF Online

Trace a JPG drawing, logo or sketch into DXF outlines for CAD, laser cutting and CNC.

Click to choose or drag & drop here

Up to 10 files · 50 MB each

How to Convert JPEG to DXF

1
Upload the JPG
Use the sharpest, largest JPG of the drawing you have, up to 50 MB (up to 10 files at once).
2
Outlines are traced
Every area darker than mid-gray gets a closed outline; light areas such as the paper are left out.
3
Download and scale
Open the DXF in your CAD or cutting software and scale it to its real size (it has no units).

What the DXF contains

Closed POLYLINE outlines around every area of the JPG that is darker than mid-gray: the edge of each dark shape, and of each hole inside one (the middle of an “O” gets its own outline). There is no fill and no color, and everything is on one layer, because a DXF made from a picture only knows where the edges are.

Set the scale after importing

The DXF has no units: each pixel of your JPG becomes one drawing unit. A logo 1200 pixels wide arrives 1200 units wide, which your software may read as 1200 mm. After importing, measure one length you know (the width of the logo, say) and scale the drawing so it matches.

Your JPG is	The DXF arrives as
1200 px wide	1200 units wide (1200 mm if your software assumes millimeters)
A logo you want 80 mm wide	Scale by 80 / 1200 = 0.0667 after importing

For laser cutting and CNC

Because every outline is closed, cutting software treats each one as a piece to cut or engrave. Before cutting, zoom in and delete stray specks, and check that letters with holes (A, B, O, P) kept their inner outlines.

LightBurn: import the DXF, scale it, then assign a cut or engrave layer.
Fusion 360: insert the DXF into a sketch, then extrude the closed profiles.
AutoCAD, LibreCAD (free), QCAD: open it directly as a drawing.

Getting a clean trace from a JPG

JPG compression leaves faint blocks around edges, which turn into small bumps along the outlines. Start from the largest, least-compressed JPG you have, or the original scan.

Dark lines on white paper, photographed or scanned straight on.
No shadows across the page; raise the contrast if the paper looks gray.
Crop away everything that should not be cut.

Figures on this page were measured by the PortImg team in October 2026, on a test copy of our server. How we test

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Frequently Asked Questions

: None are set: one pixel of the JPG is one drawing unit. Scale the drawing after importing by measuring a length you know.
: The DXF is traced from the picture, so it only holds outlines of the dark areas. Assign layers, line colors or cut settings in your CAD or laser software.
: The outlines are closed POLYLINE shapes, which LightBurn and most laser and CNC software cut as pieces. Scale it to size and remove any stray specks first.
: A photo becomes outlines of its dark blotches, which rarely cut usefully. A picture of a 3D model gives flat outlines of what the picture shows, not a 3D model.
: JPG compression leaves faint blocks around edges, and the tracer follows them. A larger, less-compressed JPG or the original scan gives smoother lines.
: The JPG is uploaded over HTTPS, traced on our server and deleted automatically within 2 hours, along with the DXF.