feat: Add Digital Signature and Validate Signature tools

New Features:
- Digital Signature tool: Sign PDFs with X.509 certificates (PFX/PEM)
  - Visible and invisible signatures
  - All pages, first page, last page, or custom page selection
  - Dynamic signature height based on text content
  - Custom signature text, image, and styling options

- Validate Signature tool: Verify digital signatures in PDFs
  - Extract and parse PKCS#7 signatures
  - View signer and issuer certificate details
  - Check certificate validity and expiry
  - Optional custom X.509 certificate for trust verification
  - Full/partial coverage detection

Infrastructure:
- Added Cloudflare Worker CORS proxy for certificate chain fetching
- Updated README with new tools and proxy deployment instructions

Documentation:
- Added Digital Signature and Validate Signature to README tools table
- Added CORS proxy deployment guide for self-hosters
This commit is contained in:
abdullahalam123
2026-01-04 19:08:50 +05:30
parent 94504d4b75
commit 05110c7f6a
20 changed files with 1703 additions and 24 deletions

View File

@@ -81,6 +81,7 @@ Choose your platform:
- [Nginx](/self-hosting/nginx)
- [Apache](/self-hosting/apache)
- [Docker](/self-hosting/docker)
- [CORS Proxy](/self-hosting/cors-proxy) - Required for digital signatures
## System Requirements