Short answer: use the format your machine’s software prefers. SVG is common for craft cutters and many hobby and desktop lasers. DXF is the traditional choice for CAD-based CNC, plasma and many industrial laser workflows. More important than the format is that the paths are clean, closed and at the right size.
What SVG is
SVG (Scalable Vector Graphics) is a web standard. It stores shapes, colours and sometimes effects, and almost every design tool can export it. Many cutting and engraving programs import SVG directly, which makes it convenient for logos and decorative work.
What DXF is
DXF (Drawing Exchange Format) comes from CAD software. It focuses on geometry: lines, arcs and curves with real-world dimensions. Colours, gradients and effects are usually ignored. CNC routers, plasma cutters and many industrial lasers are built around CAD files, so DXF is often the default there.
How to choose
| Feature | SVG | DXF |
|---|---|---|
| Typical users | Craft cutters, many desktop lasers, web | CAD/CAM, CNC routers, plasma, many industrial lasers |
| Stores colour | Yes | Usually treated as layers or ignored |
| Units and scale | Can vary between programs | Usually explicit in CAD workflows |
| Watch out for | Scale changes on import, effects that don’t cut | Curves split into many small segments, version compatibility |
If you’re not sure, ask the machine operator or check your software’s import options. Many programs accept both.
What matters more than the format
Most cutting problems come from the artwork itself, not the file type:
- Open paths: the machine can’t tell inside from outside, so fills and cuts fail
- Overlapping duplicate shapes: the laser cuts the same line twice, which can burn material
- Thousands of tiny segments from auto-tracing: slow, jerky movement and rough edges
- Details too small for the tool: thin lines and tiny gaps that a bit or beam can’t reproduce at the final size
- Text not converted to outlines: fonts go missing on another computer
- Wrong scale or units: a 100 mm part arriving as 100 inches, or the other way round
Preparing a logo for cutting or engraving
- Start from a clean vector redraw, not an auto-trace of a JPG (image to SVG explains why)
- Decide the finished size and material, and simplify details that won’t survive
- Separate cut lines from engrave areas, the way your operator wants them
- Close every path and remove duplicates
- Export to the requested format and check it in the machine’s software
When the file you have doesn’t cut properly
If a supplied SVG or DXF behaves badly, vector file cleanup can usually fix it. For artwork that starts as an image, see laser and CNC artwork and vinyl cutting artwork. Tell us your machine, software, material and finished size, and we’ll prepare the file to suit.
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