How to Convert SVG to PLT Free, Step by Step
Need a PLT from an SVG? Here is how to convert SVG to PLT, what usually goes wrong, and how to get a file you can use first time.
Why convert SVG to PLT?
A PLT is HPGL plotter commands: pen up, pen down, move to a coordinate. What Roland, Graphtec, Summa and most vinyl cutters speak natively, at exactly 40 units per millimetre.
- Vinyl cutting.
- Pen plotting.
- Drag-knife cutters.
The catch is the SVG itself. It has no native idea of physical units, so whether a width means millimetres depends on the program reading it. That is why the conversion matters as much as the file you start with.
Where most converters let you down
Plenty of tools will happily take your SVG and give you something back. The trouble is what they give you: many lose the units, flip the drawing, or rebuild curves into thousands of tiny segments. You only find out later, when the file will not cut, print, import or open the way you expected.
What you actually want is the same geometry, carried across with its scale and the right way up. That is the standard this SVG to PLT converter is built to.
How to convert SVG to PLT in 3 steps
- Open the SVG to PLT converter and drop in your SVG.
- Check the result in the preview and adjust the settings if you need to.
- Download the PLT.
Why Veconvert is the better SVG to PLT converter
- No re-tracing. Your SVG geometry is carried across, not redrawn from pixels.
- Units stated. PLT output says what its numbers mean.
- Transforms applied properly. Nested groups and scaled paths land where they should.
- Checked before you cut. The output file is read back and drawn on screen.
- Private. The conversion runs in your browser.
What happens to your file
An SVG already holds shapes, so it is not traced at all. Its paths are read directly (curves, lines and the transforms applied to them) and written out as a PLT, so nothing is thrown away and re-approximated.
The conversion runs in your browser, so the file is never uploaded: client work, statements and unreleased designs stay on your computer.
Getting the best PLT: mistakes to avoid
- Convert text to outlines in your design software before converting, so fonts are not needed.
- Convert text to outlines in your SVG before converting if your design software can; fonts are not available to a cutter.
- Remove guides, hidden layers and anything you do not want cut.
- Check the reported size against the size you expect before sending it to the machine.
What it costs
Yes, converting is free: the conversion and checking the result cost nothing, and the work runs in your browser, so nothing is uploaded. The side-by-side preview on the converter pages comes with a free account. Saving the finished file is paid: $3.49 for one file ($3.99 for a technical file such as DXF, G-code, STL or embroidery) with no account needed, or included in a plan from $6.99 a month.
You see the result before you spend anything, so you only pay for a file you are happy with.
Frequently asked questions
What is a PLT file?
A plt file is HPGL, Hewlett-Packard Graphics Language: pen-up and pen-down moves in plotter units. Vinyl cutters, pen plotters and some CAD printers read it.
Why does my cutter draw random travel lines?
Either the file puts the knife down between shapes (a missing PU pen-up before a move), or the cutter is set to the wrong HPGL dialect. Files from here always lift before travelling. If you still see lines, set the cutter to HPGL rather than HP-GL/2 or GP-GL.
Why is my PLT cut the wrong size?
It was written at the wrong units per millimetre. HPGL is 40 units per mm; this converter never changes that.
How does SVG to PLT compare with other converters?
Checked against vpype, an open-source plotter tool, on the same artwork: the same paths and points, the size exact to the source (74.08 mm where vpype's HP 7475A profile gave 74.45), and each plotter point written once, which made the file 29% smaller than writing every point.
Will the PLT open in Roland CutStudio, SignCut and FlexiSIGN?
Yes. The file is a standard PLT, written to the format’s specification, and opens in Roland CutStudio, SignCut and FlexiSIGN and other software that reads PLT.
What units does the PLT use?
Millimetres or inches, whichever you choose. The size you set is the size the machine cuts.
What is the best SVG to PLT converter?
One that gives you the same geometry, carried across with its scale and the right way up, shows the result before you pay, and does not upload your file. That is what this page is built to do.