Import failed or looks wrong
Resolve rejected formats, missing geometry, and incorrect import size.
Read the import message first. Some formats report a partial import when unsupported entities are skipped; others reject the file to avoid silently changing the design.
LightBurn artwork is distorted
Use the latest release, then compare curves, closed outlines, text, dimensions, and layer assignments with the source. Shared path data and coordinate conversion have received fixes. Check import warnings and Preview before running the job.
The reference-point grid in Properties controls editing coordinates. Its selection stays constant between imports during the current app session. It is separate from Job Origin in Laser Control.
SVG
Convert unsupported filters and effects to plain geometry. Install the required fonts or convert text to paths. Embedded PNG, JPEG, GIF, and WebP images are supported; check that the source actually embeds the image instead of referring to a missing external file.
For incorrect dimensions, see SVG came in wrong size.
DXF
Export a flat 2D drawing using supported lines, circles, arcs, polylines, and splines. Convert text, blocks, ellipses, solids, and meshes to supported paths. Read skipped-entity warnings; a partial import may be missing required artwork.
Export in millimeters when the file declares unsupported or malformed units. Files without a unit declaration are treated as millimeters.
PDF or AI
- Export one page at a time. Multipage PDFs are rejected.
- Convert live text to paths and remove or expand clipping and unsupported effects.
- Export SVG when the source uses unsupported forms, compressed object streams, encryption, or page transforms.
- Export scanned pages as PNG or JPEG; the PDF importer does not render scanned documents.
- Reduce the document below the 64 MiB source and 32 MiB expanded-content limits.
Renaming a file's extension does not convert its contents. PDF-compatible AI files have the same restrictions as PDF.
Raster images
Verify that the file opens as an image in another application. Downsample large images before importing. The decoded image limit is 67,108,864 pixels, regardless of compressed file size. Planning also limits the generated raster target to that many pixels.
G-code geometry
The dedicated API importer accepts a limited linear-motion subset. Convert arcs to linear moves and remove unsupported commands in the source workflow. It rejects malformed words or unsupported operations instead of importing an incomplete toolpath.
Nothing appears
Check object visibility in the Outliner, layer display, and the page zoom. Artwork may be outside the visible workspace. Compare the original file in its source app.
If drag and drop fails, try File > Import. Report the format, error message, app version, and what differs through Help > Report a Bug.
See Supported imports for the complete compatibility notes.