GraphicsMagick Utilities

GraphicsMagick provides a powerful command line utility which may be used to access all GraphicsMagick functions. Gm uses a consistent set of options (see options documentation). GraphicsMagick provides access to major command modes via a single executable command-line program called 'gm'; for example, to use the "convert" mode, type "gm convert ...". The available command modes and links to their documentation are shown in the following table:

  GM Command Mode | Description
  --- | ---
  gm animate | animate a sequence of images
  gm composite | composite images together
  gm conjure | execute a Magick Scripting Language (MSL) XML script
  gm convert | convert an image or sequence of images
  gm display | display an image on a workstation running X
  gm identify | describe an image or image sequence
  gm import | capture an application or X server screen
  gm mogrify | transform an image or sequence of images
  gm montage | create a composite image (in a grid) from separate images

The gm utility makes it easy to perform complex image processing operations using a single command. It may be invoked from scripts, or from other programs in order to automate the processing of thousands of images.

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