Manual:$wgCustomConvertCommand/en

Details
To use another resizing converter, e.g. GraphicMagick, set this variable to the command-line string required to launch the executable. If no string is specified, then MediaWiki's internal resizing code will be used.

In the command-line string, the following variables will be expanded:


 * %s will be replaced with the source path
 * %d will be replaced with the destination
 * %w will be replaced with the width
 * %h will be replaced with the height

For example, here is the command you would set for GraphicMagick:

This setting is overridden by. If your custom converter is not being invoked, check that  is not set to true.

Bitmaps vs. SVG
is only used for Bitmaps. If you're looking for an alternative to ImageMagick to convert your SVG files, you need to use.