Image-editing

Title	Link
ArmorPaint - 3D PBR texture painting	https://armorpaint.org/
Texture Tool	http://www.evolved-software.com/texturetool/texturetool
Exiftool - Removing/editing metadata from images	https://exiftool.org/
Awesomebump - material generator	https://github.com/kmkolasinski/AwesomeBump
Gimp - resynthesizer plugin	https://web.archive.org/web/20180514165849/http://registry.gimp.org/node/27986
Gimp - normalmap plugin	https://web.archive.org/web/20180427042218/http://registry.gimp.org/node/69
Gimp - DDS plugin	https://web.archive.org/web/20180425160637/http://registry.gimp.org/node/70
xNormal - Free normal map generator and more	http://www.xnormal.net/
Njob - Free simple normal map generator	http://charles.hollemeersch.net/njob
Gimpusers - Gimp community site	http://www.gimpusers.com/
Gimp - official site	http://www.gimp.org/