GraphicsMagick Node.js wrapper that makes it seamlessly available as a local dependency on OS X, Linux and Windows.
var execFile = require('child_process').execFile;
var binPath = require('gm-bin').path;
execFile(binPath, 'composite -compose CopyGreen green.png red.png red-green.png'.split(/\s+/), function(err, stdout, stderr) {
// balabala...
});You can also run it directly from ./node_modules/.bin/gm-bin
GraphicsMagick provides a powerful command line utility gm, which may be used to access all GraphicsMagick functions. Gm uses a consistent set of options (see options documentation). GraphicsMagick provides access to major commands via a single executable command-line program; for example, to use the "convert" sub-command, type gm convert .... The available commands are as follows:
| animate | Animate a sequence of images |
| batch | Executes an arbitary number of utility commands |
| benchmark | Measure and report utility command performance. |
| compare | Compare two images using statistics and/or visual differencing |
| composite | Composite images together |
| conjure | Execute a Magick Scripting Language (MSL) XML script |
| convert | Convert an image or sequence of images |
| display | Display an image on a workstation running X |
| identify | Describe an image or image sequence |
| import | Capture an application or X server screen |
| mogrify | Transform an image or sequence of images |
| montage | Create a composite image (in a grid) from separate images |
| time | Time the execution of a utility command. |
| version | Report GraphicsMagick version, features, and build options. |
MIT