PdfBooklet

A handy utility for producing … booklets.

Corell Draw

Good news, LibreOffice can open and edit Correl Draw files, at least on Linux…

Inkscape

This has many of the features of professional tools such as Adobe Illustrator, but it is free. For an example of its uses, have a look at our article showing how we made the logo for this website, starting from a photgraph downloaded from the internet.

Here here is a good general reference for learning InkScape.