Signatum
PDF Signing Without Limits
Only for Mac
$2.99
Mac
Sign PDFs with a certificate or prepare them for others to sign. Freely place signature fields and text boxes—all without a subscription.
Sign PDFs. Prepare documents for others. No subscription.
Digitally sign PDFs on your Mac using your own signing certificates—or prepare documents for others to sign. Define signers and roles, assign signature fields, and share the prepared PDF.
Place signature fields and text boxes where you need them. Use your certificate name and date for the visible signature, optionally adding an image.
Save your preparation as a draft and continue later. When everything is ready, release a copy for signing with a fixed signature layout. For workflows with multiple signers, choose whether the last signer or a separate person completes the document.
Key features:
• Sign PDFs with your own signing certificates
• Prepare documents for multiple signers and roles
• Freely position signature fields and text boxes
• Adjust position and size precisely
• Save editable drafts and release prepared PDFs for signing
• Configure final signing and document restrictions
• Check digital signatures and export verification reports
• Reuse templates and appearance profiles
• Process documents locally on your Mac
Signatum is a one-time purchase. No subscription, no recurring fees.
For anyone who wants control over their PDF signing workflow.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Redesigned interface with a clearer toolbar and properties panel.
• Open and work on multiple PDFs in separate windows.
• New Designer mode: prepare documents for multiple signers, define roles, and assign and style signature fields.
• Multiple people can sign a PDF sequentially using their own certificates.
• Save preparations as editable drafts, then release them for signing.
• Finalize documents only after all required signatures are complete—with the last signer or a separate person providing the final signature.
• Detection of certificates already used to sign the document.
• Protection against losing unsaved changes when closing documents or quitting the app.
• Available in English, German, French, and Spanish.
The developer, Joachim von Caron, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Joachim von Caron
- Size
- 3.8 MB
- Category
- Utilities
- Compatibility
Requires macOS 15.6 or later.
- Mac
Requires macOS 15.6 or later.
- Mac
- Languages
English and 3 more
- English, French, German, Spanish
- Age Rating
16+
- 16+
- Copyright
- © 2026 Joachim von Caron
