: Official digital copies were primarily accessed through the Warhammer 40,000 App using a unique code found in the physical book. Unofficial Archives : Community-driven sites like
If you need the rules (and not the art), the community-driven hosts the complete, searchable text of the 9th edition Astra Militarum codex for free. It is not a PDF, but a web-based rules repository. This is the safest and most up-to-date way to access the 9th edition ruleset without breaking the law or risking a virus. 9th Edition Astra Militarum Codex Pdf
The 152-page book first appeared in the in November 2022, followed by a standalone release on January 28, 2023. It replaced the aging 8th Edition codex, bringing the faction up to speed with modern 9th Edition mechanics like Crusade rules and refined stratagems. New Army Rules & Mechanics : Official digital copies were primarily accessed through