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The best app to digitally sign PDFs with your certificate.
PDF Signet was discontinued.

The latest version (1.4.7) is fully compatible with macOS High Sierra.

If you need to redownload the app, you can find it on the Purchased tab of the Mac App Store. If you purchased the app recently and would like a refund, please request it from Apple.

See the app's original description for details about PDF Signet. If you would like to purchase the application and this website, please inquire here.