II2LN normally operate with binary image formats such as JPEG, GIF, TIFF and BMPs. However, another group of image formats exists - the interpreted vector oriented image formats. Examples of such file types are;
II2LN can support most of the files in the formats above via the Ghostscript processor. Ghostscript has a special licence making it impractical (and illegal!) to include Ghostscript directly with II2LN. So in order to utilize Ghostscript you have to download and install Ghostscript your self. As soon as you have followed the installation steps below, II2LN will automatically detect its presence and utilize the Ghostscript support.
Note that there are two different "packages" or distributions of Ghostscript. The primary difference is how the package is licensed. AFPL Ghostscript is distributed with a license called the Aladdin Ghostscript Free Public License that allows free use, copying, and distribution by end users, but does not allow commercial distribution. AFPL Ghostscript was previously known as Aladdin Ghostscript. GNU Ghostscript is distributed with the GNU General Public License, which allows free use, and free copying and redistribution under certain conditions (including, in some cases, commercial distribution). GNU Ghostscript versions are usually released shortly after the next AFPL Ghostscript version.
As far as II2LN goes, it doesn't matter which version of Ghostscript you use.
Please note that II2LN can control the whereabouts of Ghostscript with the SetGhostscriptProcessor import option. Additionally you can add your own Ghostscript parameters with the SetGhostscriptParameters import option.