Guide
How to Use SVG Files in LightBurn
By Amir Baker, founder of StencilCut · Updated
To use an SVG file in LightBurn, import it with File > Import or drag it onto the workspace, select the artwork, and verify its width and height before assigning operations. LightBurn documents SVG as an importable vector format and provides separate 96 DPI and 72 DPI SVG import settings. The file format does not carry safe power or speed settings for your machine and material.
Make a LightBurn-ready fileStep by step
- 1
Import the SVG
Use File > Import or drag the SVG onto the LightBurn canvas. It appears as editable vector shapes.
- 2
Check the imported dimensions
Select the artwork and read Width and Height in the Numeric Edits toolbar. Keep the aspect-ratio lock on when changing only the intended width.
- 3
Investigate a scale mismatch
If the SVG imports at the wrong scale, compare the expected size with the selected size, then check LightBurn's 96 DPI or 72 DPI SVG import setting before applying a manual correction.
- 4
Assign operations
Put through-cut paths on a Line operation and raster artwork on a Fill operation. Confirm the intended order and that no colour was assigned by appearance alone.
- 5
Set up and test the real job
Use settings supported by the machine and material manufacturer, frame the placement, and test unfamiliar stock on suitable scrap before the final run.
Check the selected size, not the grid
After import, select the complete design and read its Width and Height in the Numeric Edits toolbar. Compare one dimension with the value you chose at export. Keep the aspect-ratio lock enabled before changing a dimension unless deliberate distortion is part of the design. The workspace or machine bed size does not prove the artwork size.
Understand the SVG DPI setting
LightBurn documents SVG import choices for 96 DPI, the Inkscape default, and 72 DPI, the Adobe Illustrator default. If a known-size SVG lands at the wrong scale, check which setting matches the source before resizing by eye. Record the expected width and the imported width so you can identify a repeatable scale factor instead of guessing.
SVG and DXF need separate unit checks
LightBurn also provides DXF unit auto-detection and a manual unit choice when a file does not carry usable unit information. Switching formats can help a workflow, but neither format removes the need to verify the selected dimensions. A correct-looking preview can still be the wrong physical size.
Cut and Engrave are operations, not colours
LightBurn organizes artwork on colour-coded layers, but the colour itself is not a physical instruction. A Line operation follows vector paths and can be configured for a cut or score. A Fill operation scans a region for engraving. Confirm the operation and settings on every output layer before running the machine.
Inspect paths before assigning settings
Check for duplicate paths, unintended open contours, isolated retained pieces, and details that became too small after scaling. If a cut portrait has floating islands, repair or bridge the vector first. If the project contains a raster engraving and vector outline, keep them on distinct layers and verify their alignment.
Use a measured preflight
Write down the intended physical width, import the file, select all artwork, and compare the displayed width. Then inspect the layer list and Preview. Use the machine and material manufacturer guidance for power, speed, focus, ventilation, and fire monitoring. Test unfamiliar material on suitable scrap before committing the final piece.
Further reading
Try it yourself
Turn a photo into a laser-ready file in about a minute, free, in your browser.
Make a LightBurn-ready fileFrequently asked questions
How do I import an SVG into LightBurn?
Use File > Import or drag the SVG onto the canvas. It comes in as editable vector shapes ready to assign to cut or scan layers.
Why does my SVG import at the wrong size in LightBurn?
First compare the selected Width and Height with the intended export size. LightBurn documents 96 DPI and 72 DPI SVG import settings, so check which setting matches the source before resizing manually.
How do I make part of an SVG cut and part engrave?
Put the vector cut paths on a Line operation and the raster or filled engraving on a separate Fill operation. Confirm the operation, order, dimensions, and machine settings for each layer.
Why are parts of my design falling out?
Floating islands with no bridges. Add bridges connecting enclosed pieces to the main body before cutting so the design holds together.
Does importing at the right size mean the file is ready?
No. Also inspect open or duplicate paths, retained islands, minimum features, layer operations, placement, and the machine and material settings. Use Preview and test unfamiliar stock on suitable scrap.
Related guides
Cut vs Engrave: Which Laser Project Do You Need?
Choose the right workflow and file before you generate.
DXF vs SVG for Laser Cutting: Which Should You Use?
The real differences, and which to pick for your laser.
What Is Bridging in Laser Cutting? (Floating Islands Explained)
Why parts fall out of stencils, and how bridges fix it.
How to Make a Connected Pet Portrait Stencil
Keep the pet recognizable while making the design hold together.