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PDF Signet allows you sign PDFs with your X.509 certificate without any hassle -- simply pick the certificate from your Keychain and sign. Verifying existing signatures is even simpler: just drop a PDF on the app.

  • Digitally sign PDFs documents with X.509 certificates
  • Verify and validate already present signatures
  • Use your certificate directly from Keychain
  • Automator support -- sign documents automatically as you create them

What's New

Version 1.4.4:
  • Fixed SHA-256 incompatibility with some smartcards (CSSMERR_CSP_INVALID_ALGORITHM)


  • OS X 10.7 or later

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4 2


Current Version (1.x)


Downloads 567
Version Downloads 13
License Commercial
Date 30 Nov 2015
Platform Intel 64 / OS X
Price $11.99
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