Open Source vs. Proprietary: Graphics and Video
Zen and the Art of Nonprofit Technology
APRIL 7, 2011
And, honestly, they are very good tools, and considered industry standards. I’ll leave it to the graphics professionals to say for sure, but they are both worth a look if you don’t want to plunk down hundreds of $ for Photoshop and Illustrator, and/or you like to work with open source tools.
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