Convert pj to pdf Online: pj2pdf

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

Go to Tom's Editor

PJ

HP PaintJet file is an image format with extension PJ.

PDF

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