Document with valid digital signature popup from signature annotation

Android Digital Signatures Library Secure Digital Signatures in Your Android App

Certified, encrypted, and secure document signing workflows.

Available On:
Mac Catalyst
React Native

Don’t Worry, We’ll Double-Check


Digital Signatures can be used to verify a document’s origin and to make sure it hasn’t been tampered with after signing.



As a developer, you can add additional metadata — like a timestamp or an IP address — to a digital signature for even better security.


Certificate-Based, Encrypted, and Secure

Proof of Authenticity

A digital signature on a PDF document is reliable proof of the document’s origin.

Protection against Modification

An encrypted hash is used to verify that the document hasn’t been tampered with.

Biometric Signatures

Our digital signatures are created with additional biometric properties for added safety.

View Demo Get a feel for what’s possible with our Android showcase app.

Which One Is for You?

PSPDFKit supports both hand-drawn signatures and encrypted, digital certificate-based signatures.

Use a fingertip, stylus, or mouse; upload an image of your signature; or type your signature in one of the provided styles
Simple and familiar methodology for users to confirm actions and purchases
Create and preserve a record of specific customer actions
Used In
  • Wide range of consumer and business applications
Secure, certificate-based identifiers
Best-available commercial standard for encrypted “digital fingerprint” confirmations
Incorporate additional metadata: timestamp, IP address, signature speed, method of input, pressure sensitivity, and touch radius
Used In
  • Real estate deeds and mortgages
  • Pharmaceutical and medical manufacturer testing records
  • Legal contracts
  • Loan transactions and financial documentation
Documentation Learn how to easily get Digital Signatures up and running in your project.
View Documentation

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