Convert pdf to gif Online: pdf2gif

You can use Tom's Editor to easily convert images from
Portable Document Format .PDF to CompuServe Graphics Interchange Format .GIF.
Tom's Editor is a free, online image manipulation and converter program.

Go to Tom's Editor

PDF

Adobe PDF format is the most popular document format. Overcomplicated. Offers compression.

GIF

GIF images were created by Compuserve. They can used no more than 256 colors and a single color transparenty (no Alpha channel). Today are rare since they offer low quality and huge filesizes. GIF animations are still in use.