Most leather patterns you buy or download come as PDFs, made for printing. Your laser software, whether that is LightBurn, xTool Creative Space or Glowforge, wants a DXF or an SVG. Getting from one to the other cleanly is where a lot of wasted leather comes from.
Why PDFs cause problems
A PDF made for printing often has outlines that look joined on paper but are actually lots of separate little lines. Some have the same line drawn twice, a border round the page, text, and dimension arrows. Import that straight into laser software and you get double cuts that scorch the edge, shapes that will not fill or offset because they are not closed, and a laser that wanders off to cut the page border.
What a good cut file needs
- Closed shapes: every piece is one continuous outline, so the laser cuts it in one go and you can offset or fill it.
- No duplicates: each line is cut once.
- True size: the pieces measure exactly what the pattern says.
- Nothing extra: no page borders, text or arrows on the cut layer.
- Separate layers: cut lines and stitch holes on different colours, so you can give them different power and speed.
Converting with Laser-Ready DXF
We built Laser-Ready DXF for exactly this job. Open your PDF in it and it reads the real vector lines, joins broken outlines, removes doubled lines, specks and page borders, and flags anything that is still open in red so you can see it before you cut. Then save a DXF or SVG at true size in millimetres or inches.
It runs in your browser and works offline, and your pattern never leaves your computer, which matters if it is a pattern you have bought. You can try it free on your own files.
Then test before you cut good leather
Even with a perfect file, every leather cuts differently. Run a small test on an offcut of the same hide to find the power and speed that cuts cleanly through without heavy charring. Laser Test Card makes a grid of test squares at different settings and keeps a book of the ones that worked, so you only have to test each leather once.
Only laser leather you know is vegetable-tanned. Chrome-tanned leather is widely advised against for laser cutting because of the chromium compounds it can give off when burnt. If you are not sure how a leather was tanned, ask your supplier.
Stitch holes on the laser
Many makers cut the stitch holes on the laser too. If your pattern does not have them, Stitch Line Studio lays perfectly spaced holes round curves and corners, with a hole exactly on every corner, ready to export on its own layer.