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A specific photograph of a painting might or might not be public domain. I would look for a specific copyright release from the photographer or photograph owner. And it doesn't even have to be public domain. Some licenses allow commercial use if credit is given. This is a hypothetical question, but let's say I wanted to publish a free e-book of ...
11 hours ago · The GNU General Public License ( GNU GPL or simply GPL) is a series of widely used free software licenses, or copyleft, that guarantee end users the four freedoms to run, study, share, and modify the software. [7] The license was the first copyleft for general use, and was originally written by Richard Stallman, the founder of the Free Software ...
- 25 February 1989
