| What it does | Digital PDF signatures for macOS
| Auto-tag PDFs for accessibility: PDF/UA and WCAG 2.2
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
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| Pricing model | Freemium
| Freemium
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| Pricing | Create your first 5 signatures free, then unlock unlimited signing with a one-time purchase
| Free: 30 repair pages per month, checking unlimited, up to 50 PDFs in workspace, files up to 250 MB and 150 pages. Studios & agencies: partner pricing per page by volume, with white label and API access available. Team: custom pricing agreed in advance, no card required to start.
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| Key features | - Keychain signing with support for CryptoTokenKit smart cards
- Visible signature with optional image, signer name, and signing time
- RFC 3161 timestamping and long-term validation (LTV)
- Signature inspection with status, certificate chains, and DSS material review
- Multiple signatures as independent document revisions
- Local document processing without server uploads
- Support for PAdES-B-B, PAdES-B-T, PAdES-B-LT, and PAdES-B-LTA profiles
| - Auto-tag headings, lists, tables, figures and reading order
- Automatic alt text generation for figures
- Repair and validation against PDF/UA-1 and WCAG 2.2
- Separate machine findings from human review
- White label option for design studios and agencies
- API access for integration into other products
- Re-upload and re-tag client revisions
- Batch upload multiple PDFs
- Tag links, form fields and reading order across pages
- Headers and footers removed from reading order
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| What makes it different | - Real digital signatures that preserve original PDF bytes, not just image stamps
- Incremental PDF updates preserve existing signatures as independently verifiable
- All document processing stays local without server uploads
- Works with macOS Keychain and supported smart cards without PKCS#11 limitation
- Verification always unlimited while signing has free tier option
| - Machine findings kept separate from human review, not treated as certification
- Evidence travels with the file you deliver
- Free to start with no card required
- Files never used to train AI models
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 37 ● no change since last check | 15 ● no change since last check |
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| Trust Flow (Majestic) | 7 | 1 |
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| Citation Flow (Majestic) | 16 | 24 |
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| Referring domains (Majestic) | 5 | 5 |
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