ImageMagick can be installed on Windows, Unix and Unix-like operating systems including Linux, Solaris, FreeBSD, Mac OS X, and others.
Note: Make sure you have installed GhostScript and FreeType already 😉
More help https://www.svnlabs.com/blogs/install-openmeetings/
Download & Unpack
# wget http://www.imagemagick.org/download/ImageMagick.tar.gz
# tar xvfz ImageMagick.tar.gz
Configure
# cd ImageMagick-6.8.0-4 (or current version)
# ./configure
Build
# make
Install
# make install
Commands
[root@svnlabs ImageMagick-6.8.0-4]# which convert
/usr/local/bin/convert
[root@svnlabs ImageMagick-6.8.0-4]# which display
/usr/local/bin/display
Use ImageMagick to convert, edit, or compose bitmap images in a variety of formats. In addition, resize, rotate, shear, distort or transform images automatically.