The ImageMagick stable and development source releases are available from Subversion. This a convenient way for developers to download the ImageMagick source, fix bugs, or add new features.
To retrieve, or check out ImageMagick stable, use this command:
svn co https://subversion.imagemagick.org/subversion/ImageMagick/branches/ImageMagick-7.0.0 ImageMagick-7.0.0
To retrieve, or check out ImageMagick development, use this command:
svn co https://subversion.imagemagick.org/subversion/ImageMagick/trunk ImageMagick
To update the sources within a previously checked out directory, execute:
svn update
and only the files which have changed are updated.