| What it does | Digital PDF signatures for macOS
| Free private studios and tools for PDFs, documents, spreadsheets, data, images, slides, study, citations, maths and code, all running in your browser
|
|---|
| Stage | Not given
| Not given
|
|---|
| Founded | Not given
| Not given
|
|---|
| Based in | Not given
| Not given
|
|---|
| Pricing model | Freemium
| Free
|
|---|
| Pricing | Create your first 5 signatures free, then unlock unlimited signing with a one-time purchase
| All studios and tools are free with no watermarks or daily limits. A free account adds sync between devices and 50 MB of cloud files, with no charge.
|
|---|
| 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
| - PDF annotation, highlighting, text and image insertion, signing, redaction, merging, splitting, reordering, compressing, form filling, password protection and OCR
- Word document creation with real DOCX file format export
- Excel spreadsheet editing with working formulas
- CSV data cleaning, reshaping and charting
- Flashcard study with FSRS memory model and eight study modes
- Citation formatting in APA, MLA, Chicago, Harvard, IEEE and 13 more styles
- Mathematical problem solving with step-by-step answers
- Photo editing with color grading, compression and format conversion
- Offline installation as browser app with sync on reconnect
- Support for 107 languages and right-to-left scripts
|
|---|
| 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
| - All processing happens in your browser with no file uploads required
- No account needed to use any studio or tool
- Completely free with no watermarks, trials, daily limits or ads
- Works offline as an installable browser app
|
|---|
| Community votes | 0 | 0 |
|---|
| DR (Domain Rating by Ahrefs) | 37 ● no change since last check | 9 ● no change since last check |
|---|
| Trust Flow (Majestic) | 7 | 0 |
|---|
| Citation Flow (Majestic) | 16 | 0 |
|---|
| Referring domains (Majestic) | 5 | 0 |
|---|
Cromagnon