| What it does | Digital PDF signatures for macOS
| Free browser-based PDF tools that run locally on your device
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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
| Free
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| Pricing | Create your first 5 signatures free, then unlock unlimited signing with a one-time purchase
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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
| - Convert images, TXT, Markdown, HTML, and ZIP to PDF; convert PDF pages to PNG, JPG, or WebP
- Extract text, images, and Markdown from PDFs
- Clean PDF metadata and remove sensitive content
- Process multiple files at once in batch operations
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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
| - Compatible operations connect automatically without repeated file selection between steps
- Completely free with no account, sign-up, or watermark required
- Tools continue working offline after the page loads in the browser
- Built on open-source libraries PDF.js and pdf-lib trusted by the web
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 37 ● no change since last check | 7 ● no change since last check |
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| Trust Flow (Majestic) | 7 | 10 |
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| Citation Flow (Majestic) | 16 | 19 |
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| Referring domains (Majestic) | 5 | 7 |
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MinoPDF