| What it does | Browser-based EPUB workspace for viewing, editing, and extracting DRM-free ebook files locally
| 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 | Not given
| Lifetime License for $64.99 USD. Free version with full feature trial available.
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| Key features | - EPUB viewer for reading chapters and inspecting publication structure
- Metadata editor to modify title, authors, language, publisher, description, and subjects
- Cover editor to replace publication artwork
- Extract chapters to Markdown format with metadata and image references
- Extract chapters to plain UTF-8 text
- Browser-local file processing with no server upload
- Blocks external resources and publication scripts by default
- Supports EPUB 2 and EPUB 3 formats
| - 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 | - Local browser processing keeps your ebook file private and offline
- Non-destructive editing preserves original files while creating new versions
- Focused single-task tools instead of complex full-featured desktop software
- Clear compatibility limits and honest support boundaries documented
| - 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) | 3 ● no change since last check | 73 ● no change since last check |
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| Trust Flow (Majestic) | 6 | 24 |
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| Citation Flow (Majestic) | 27 | 55 |
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| Referring domains (Majestic) | 31 | 4682 |
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EPUB Toolset
PDNob