Downloads
Every file you can download from ZIRULAB, in one place. Each download has a fixed address at zirulab.org/download/…, which stays the same when a new version is released.
PDF Watermark Tool
ZIRULAB in-houseBatch PDF watermarking tool supporting text and image watermarks.
- Product ID
- ZL-2026-0306
- Version
- v2.1.3
- File size
- 40.8 MB
SHA-256
13c9f1574757f251986eb07128cebd51b8b3d1061df3ecbc5718ba1f650834e1VBA Certificate Generator
ZIRULAB in-houseGenerates self-signed code signing certificates for Excel / Word VBA macro projects.
- Product ID
- ZL-2026-0415
- Version
- v1.0.2
- File size
- 9.8 MB
SHA-256
6d8f2a2a1f128231fa342eac1a836d5dc27b4b9c5b539a1ead5540ed066f5a99
After downloading, you can compare the SHA-256 checksum to make sure the file is complete and unmodified (Windows: run Get-FileHash <file> in PowerShell).
The in-house tools are not commercially code-signed, so Windows may show an “unknown publisher” warning on first run; check where the file came from, then choose “Run anyway”.