PDF Signet - Digital Signatures

Sign your invoices and other PDF documents with your certificate, stored in Keychain or on a smartcard. PDF Signet is a simple tool that does signing well and comes with some useful features:

DIGITALLY SIGN PDFs — Use your X.509 certificate to sign PDF documents reliably. Digital signature gives the recipient assurance that the documents came from you and wasnt tampered with, be they invoices, contracts or something else.

- Integrates with OS X Keychain
- Smartcards and eTokens support (must be compatible with OS X Keychain)
- Standard-based and Adobe Reader compatible


VALIDATE SIGNATURES — Verify that the signatures present in the document you received are correct and trustworthy. Just drag a document to PDF Signet and it checks if everything is all right.


AUTOMATION SUPPORT — Automate your signing workflow with Automator or AppleScript. Any other OS X automation tools will work too - Alfred, Hazel, LaunchBar, you name it.


DEEP OS X INTEGRATION — PDF Signet uses modern OS X technologies wherever it can: Keychain for secure handling of your certificates, Automator and ApplesScript for automation, Services for convenient access from Finder.


“The best app to digitally sign (with certificate) docs.”
— @MAstilleroF

“Excellent app, superior support - The app is easy to use and works perfect. The possibility to use as a workflow in automator or Hazel is also a plus. The support is fast and accurate. If you need to sign PDF with your digital certificate, this is the right app.”
— Diego Dal Cero


Note: If you don’t already have a certificate to use with PDF Signet, you need to obtain it from your preferred Certificate Authority first.