Convert pdf to bum Online: pdf2bum

You can use Tom's Editor to easily convert images from
Portable Document Format .PDF to Poser Bump Map .BUM.
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.

BUM

Poser Bump Map is an image format with extension BUM.