Convert grf to pdf Online: grf2pdf

You can use Tom's Editor to easily convert images from
GRF, MAX, P41, PIX .GRF to Portable Document Format .PDF.
Tom's Editor is a free, online image manipulation and converter program.

Go to Tom's Editor

GRF

GRF, MAX, P41, PIX is an image format with extension GRF.

PDF

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