inkscape

An SVG (Scalable Vector Graphics) editing program. Use -z to not open the GUI and only process files in the console.

Open an SVG file in the Inkscape GUI:

inkscape {{filename.svg}}

Export an SVG file into a bitmap with the default format (PNG) and the default resolution (90 DPI):

inkscape {{filename.svg}} -e {{filename.png}}

Export an SVG file into a bitmap of 600x400 pixels (aspect ratio distortion may occur):

inkscape {{filename.svg}} -e {{filename.png}} -w {{600}} -h {{400}}

Export a single object, given its ID, into a bitmap:

inkscape {{filename.svg}} -i {{id}} -e {{object.png}}

Export an SVG document to PDF, converting all texts to paths:

inkscape {{filename.svg}} | inkscape | inkscape --export-pdf={{inkscape.pdf}} | inkscape | inkscape --export-text-to-path

Duplicate the object with id="path123", rotate the duplicate 90 degrees, save the file, and quit Inkscape:

inkscape {{filename.svg}} --select=path123 --verb=EditDuplicate --verb=ObjectRotate90 --verb=FileSave --verb=FileQuit

Some invalid command just to test the correct highlighting of the command name:

inkscape --use-inkscape=v3.0 file