| What it does | Free private studios and tools for PDFs, documents, spreadsheets, data, images, slides, study, citations, maths and code, all running in your browser
| AI-powered PDF editor for Windows and Mac with OCR, conversion, and editing capabilities
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| Stage | Not given
| Established
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| Founded | Not given
| 2007
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| Based in | Not given
| HK
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| Pricing model | Free
| Freemium
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| Pricing | 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.
| Lifetime License for $64.99 USD. Free version with full feature trial available.
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| Key features | - 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
| - AI-powered OCR with 16+ language support
- PDF editing with text and image manipulation
- Batch conversion to 30+ formats
- Chat with PDF using AI
- Fillable form creation and e-signing
- PDF annotation with 100+ shapes
- Page organization and batch processing
- Screen recording and screenshot tools
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| What makes it different | - 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
| - Self-developed PDFium engine opens 100+ page PDFs in 1 second with no lag or crashes
- Batch process up to 1 million files at once without size limits
- Source-backed AI answers with clickable page references for verification
- Free lifetime upgrades with no subscription required
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 9 ● no change since last check | 73 ● no change since last check |
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| Trust Flow (Majestic) | 0 | 24 |
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| Citation Flow (Majestic) | 0 | 55 |
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| Referring domains (Majestic) | 0 | 4682 |
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Cromagnon
PDNob