Convert rast to pdf Online: rast2pdf

You can use Tom's Editor to easily convert images from
Sun rasterfile .RAST to Portable Document Format .PDF.
Tom's Editor is a free, online image manipulation and converter program.

Go to Tom's Editor

RAST

Sun rasterfile is an image format with extension RAST.

PDF

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