image editing/graphic design software

Some of the most popular image editing and graphic design programs are commercial and high-cost. For example, Photoshop, Illustrator, and InDesign are very popular Adobe products. However, there are some free/open source alternatives:

GNU Image Manipulation Program/GIMP (Windows, Mac, Linux)
Free and open source image editing software. (Similar to Photoshop.)

Inkscape (Windows, Mac, Linux)
Free and open source vector graphics software. (Similar to Illustrator.)

Scribus (Windows, Mac, Linux)
Free and open source desktop publishing/graphic design software. (Similar to InDesign.)

If the above options don’t work for you and you’re looking for a lower cost alternative to the Adobe CS, check out the Affinity suite of design software. Their software averages $40-60:

Affinity Designer (Windows, Mac)
Vector graphics design software. (Similar to Illustrator.)

Affinity Photo (Windows, Mac)
Image editing software. (Similar to Photoshop.)