The most up-to-date information is hosted on the developer's official documentation sites:
While there is no single "official" PDF manual, you can download several community-created guides and access the official web-based documentation for both OpenBullet 1 and OpenBullet 2. Download Openbullet Guide pdf
: Detailed usage information for the original version, including LiteDB database management. Downloadable PDF Guides The most up-to-date information is hosted on the
Several community-authored manuals are available for download on document-sharing platforms: Download Openbullet Guide pdf