Forgeworld isn't Canon Edition
For all your questions on Dark Heresy (1st and 2nd Editions), Rogue Trader, Deathwatch, Black Crusade, and Only War.
Not the wargame. Not Chapter Master. Or Space Hulk.
Book Repositories (If you're planning to download any Rogue Trader materials, read the .txt file in the RT directory)
mega.nz
There is a new Homebrew Megafolder option in above MEGA directory containing several things formerly listed individually on this post.
40K RPG tools, a site that contains stats or references for almost all weapons, armor and NPCs/adversaries. Not updated past DH2 core.
40krpgtools.com
40k RPG Combined Armory (v6.45.160417), containing every piece of gear in all five lines. Now containing some of the DH2 content up to the first supplement.
mediafire.com
Fear and Loathing (Ver 1.5.2) and The Fringe is Yours (Ver 1.6.0), Veeky Forums made Rogue Trader homebrew supplements for playable xenos, Knights, Horus Heresy gear, and other things. Now found in the Homebrew Megafolder.
Mars Needs Women! Rampage of the Nerds! (V1.0.0), a new Veeky Forums made Only War supplement for playing as Skitarii, Cult Mechanicus, and joyriding an Ordinatus
mediafire.com
Old thread