__OS X__ The easiest method is to just download the binary release of Imagemagick and configure CrushFTP to use it. [attachments|imagemagick_config.png] __Windows__ If you are using Windows, you will need to download and install ImageMagick. ImageMagick is a free third party tool that handles the conversion of many different file formats. Its used to convert the images to small thumbnails. [http://www.imagemagick.org/script/binary-releases.php#windows] I generally get the top link via HTTP. [attachments|imagemagick_link.png] . . If you want to make thumbnails of PDF or TIFF images, then you will also need GhostScript installed. Click on the latest release. [http://pages.cs.wisc.edu/~ghost/] Then click on either the 32bit or 64bit version. [attachments|ghostscript.png]