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inkscape-cli
adnan360 872f1b067d Added Inkscape cli md file 4 years ago
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README.md 872f1b067d Added Inkscape cli md file 4 years ago

README.md

Doing things through Inkscape from the command line

Inkscape has a bunch of useful CLI command parameters that can be used to apply changes to SVGs (or any format it can open) directly from the command line. e.g.

inkscape -f FILENAME.svg -e FILENAME.png

This opens the svg file and exports it to a destination png. This is great for day to day light functions but very useful when you want to batch process files. e.g. If you have lots of SVGs and you want to export to PNGs quickly.

Verbs

There are "verbs" that can be run from cli. "verbs" are just some names given to all the Menu commands in Inkscape. You can think of them as "actions". You need these IDs when you want to run them from the cli. You can get a list of these with:

inkscape --verb-list

The syntax is easy:

inkscape ... --verb <verb name here>

We can run something like this to convert all the strokes to path in an SVG file:

inkscape -f file.svg --verb EditSelectAll --verb StrokeToPath --verb FileSave --verb FileQuit

Here, -f opens the file in inkscape, --verb EditSelectAll selects every object in the file, --verb StrokeToPath converts all selected objects from stroke to path, --verb FileSave saves the file, --verb FileQuit quits Inkscape.

(a) One of the problems is that you can't use Inkscape without GUI (headlessly) when you use verbs because of a bug. There is a workaround until the bug is fixed. We can use xvfb-run to run inkscape headlessly. It creates a virtual framebuffer X display server that runs the GUI virtually without needing to show it on-screen.

(b) Another problem is that you can't create a file with inkscape. This does not work even if you use --verb FileSaveAs somefile.svg. So you'll have to copy the source file and then edit it in place.

# Workaround for save as, because inkscape can't create files itself. ...(b)
cp original.svg new.svg
# Workaround for not being able to use Inkscape headlessly. ...(a)
xvfb-run inkscape -f new.svg --verb EditSelectAll --verb StrokeToPath --verb FileSave --verb FileQuit

One thing is that you should always add --verb FileQuit at the end when using xvfb-run because otherwise it will keep running in the background.

Ref: