HowTo install rmagick gem on Windows » History » Version 5

Version 4 (Dmitry Popov, 2015-03-03 13:00) → Version 5/10 (Dmitry Popov, 2015-03-03 13:01)

h1. HowTo install @rmagick@ gem on Windows


h2. Prerequisite

You need to have the "DevKit": installed.

h2. Installation of "ImageMagick":

Download last setup package from and run it.

However, according to "RMagick wiki":, the last known version to work is Legacy binary versions are available at

In the ??Select Additional Tasks?? page of the wizard, make sure that both ??Add application directory to your system path?? and ??Install development headers and libraries for C and C++?? options are checked:


Note: Both the ImageMagick application directory and the Windows System32 directory contain an executable named "convert.exe". Unless ImageMagick's directory is added the front of the system path, its copy will not be found. This will cause the test suggested at the completion of the installation to fail with a message "Invalid Drive Specification". Also note that Window's copy of "convert.exe" will not be found, if ImageMagick is placed first in the path.

h2. Installation of the @rmagick@ gem

* Open a new command prompt
* Change current directory to the Redmine installation directory
* Set @CPATH@ and @LIBRARY_PATH@ environment variables to point respectively to @ImageMagick@ installation directory @include@ and @lib@ subdirectories (so the DevKit will find them at build time)

set CPATH=C:\Program Files (x86)\ImageMagick-6.7.9-Q16\include
set LIBRARY_PATH=C:\Program Files (x86)\ImageMagick-6.7.9-Q16\lib

* Actually install the gem, e.g. with @gem install rmagick@ or @bundle install --without=development test@, etc.

!rmagick_install_gif! !rmagick_install_cmd!

h2. Result

Check if the installation was successful on the Information page.

!rmagick_information.gif! !rmagick_information.png!