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

@@ -510,5 +510,10 @@
"contactPlaceholder": "e.g., email@example.com",
"applySignature": "Apply Digital Signature",
"successMessage": "PDF signed successfully! The signature can be verified in any PDF reader."
},
"validateSignaturePdf": {
"name": "Validate PDF Signature",
"pageTitle": "Validate PDF Signature - Verify Digital Signatures | BentoPDF",
"subtitle": "Verify digital signatures in your PDF files. Check certificate validity, view signer details, and confirm document integrity. All processing happens in your browser."
}
}