Convert jj to pdf Online: jj2pdf

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

Go to Tom's Editor

JJ

Doodle, packed is an image format with extension JJ.

PDF

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