Stirling-PDF
Stirling-PDF is a powerful open-source self-hosted PDF tool with 50+ operations — merge, split, compress, OCR, convert, sign — no data leaving your server.
Open Source & Security Architecture
| Deployment Model | Self-Hosted |
| Supported Platforms | WebDockerSelf-Hosted |
| Encryption at Rest | AES-256 |
| Encryption in Transit | TLS 1.3 |
| Zero-Knowledge Architecture | Client-managed |
| Code Audit & Integrity | Open Source Code Audited |
Verified Capabilities
6 Key FeaturesVerified User Reviews & Ratings
Authentic community ratings calculated dynamically across security, workflow, and pricing.
Based on 0 verified reviews & research benchmarks
Similar Open Source Security Tools
Explore community-audited, privacy-first software with zero vendor lock-in
VeraCrypt
Apache-2.0 / TrueCrypt License 3.0Military-grade disk encryption software providing transparent on-the-fly AES-256, Serpent, and Twofish volume security.
Cryptomator
GPL-3.0Multi-platform software that creates client-side encrypted vaults inside Dropbox, Google Drive, iCloud, or OneDrive without vendor lock-in.
Nextcloud Hub
AGPL-3.0On-premises content collaboration platform combining file storage, real-time document editing, communication, and granular compliance controls.