Convert gd to pdf Online: gd2pdf

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

Go to Tom's Editor

GD

GD Library Image is an image format with extension GD.

PDF

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