Convert fs to pdf Online: fs2pdf

You can use Tom's Editor to easily convert images from
Usenix FaceSaver file .FS to Portable Document Format .PDF.
Tom's Editor is a free, online image manipulation and converter program.

Go to Tom's Editor

FS

Usenix FaceSaver file is an image format with extension FS.

PDF

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