PMC Editing Wiki: Tools

PMC Editing Wiki, PMC Tactical Forum, Operation Flashpoint, Falcon 4.0, Armed Assault (ArmA 1), ArmA 2, ArmA 3, Editing Tools

GIMP
GraphicsMagick
L3DT
Notepad++
Wilbur

Older editing tools page and PMC Tactical Forums: General Editing (tools) area. See the reference sites and Video Tutorials list for many useful links.