
Tsarina - Sign PDFs for real
Sign and verify PDFs digitally
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Free
In-App Purchases
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About
Tsarina signs your PDF documents with your digital certificate, such as one from Spain's FNMT, so any PDF reader can check who signed and that nothing has changed since. It also checks the signatures your documents already have.
SIGN
• PAdES signatures, the European standard for signed PDFs (eIDAS)
• One document or many at once
• A visible stamp on page 1, in the corner you choose, that you can move and resize
• Your handwritten signature, a scanned one, a seal or a logo
• Optional trusted timestamps
CHECK
• Every signature in a document: who signed, when, and whether it's intact
• Certificate trust and expiry, timestamps, and what each signature covers
• A summary for a whole set of documents
YOUR CERTIFICATE
• Import your .p12 or .pfx file once; it stays in your device's keychain
• On the Mac, certificates in your keychain work too
• No certificate yet? Try it with the demo certificate
YOUR DNIe
• Sign with your Spanish ID card (DNIe 3.0 or 4.0): over NFC on the iPhone, or with a USB card reader on the Mac, iPad and iPhone
• If you like, keep the PIN on your device behind Face ID or Touch ID
PRIVATE
No accounts, no servers, no ads, no tracking: your documents and certificates never leave your device.
Graphical signatures are always free. Signing with your certificates is free 5 times; Unlock Tsarina, a one-time purchase, removes the limit. The DNIe can also be used 5 times, then Spain: DNIe unlocks it, another one-time purchase.
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What's New in Tsarina
1.0
October 29, 2026
2
Subscriptions & In-App Purchases
$4.99
Unlock Tsarina
Sign with your certificates without limits





