BergPDF is a young project and its installers are not code-signed yet. Windows SmartScreen and macOS Gatekeeper therefore warn the first time. That is expected: verify the checksum, then continue. If you prefer, build it yourself from the source.
OCR models
Making scans searchable needs two small model files (about 12 MB). The Windows installer offers to download them; otherwise BergPDF offers it the first time you use OCR. They are checked against a fixed checksum and stored in your user folder.
Slow resizing on Windows?
Open Preferences ▸ Graphics to see which graphics adapter is used and to try another drawing API.
System requirements
System
Architecture
Package
Requirements
Windows 11
x86-64
Installer (.exe)
Windows 11, 64-bit. No administrator rights needed for a per-user install.