| What it does | Batch convert, merge, and index photos into professional PDF documents
| Read papers. Keep what you learn.
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| Stage | Established
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| Founded | 2004
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| Based in | HK
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| Pricing model | Paid
| Freemium
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| Pricing | US$24.95 one-time purchase. Lifetime license. Free trial available with all 3 processing modes fully functional.
| Free: desktop app and self-hosted server. Lite: $2/month or $20/year. Plus: $5/month or $50/year. Pro: $20/month or $200/year.
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| Key features | - Batch Convert - convert hundreds of images into separate, individual PDF files
- Merge to PDF - combine multiple photos into a single, multi-page PDF album
- Customizable paper sizes including A3, A4, A5, Letter, or custom definitions
- Auto-rotate or force Portrait/Landscape orientation
- Resolution optimization for email or high-quality print
- Add Title, Author, and Keywords to PDF properties
- Watermarking - stamp text or logos onto PDFs
- 100% Offline processing on your PC
- Support for JPG, JPEG, PNG, BMP, and GIF image formats
| - Highlight, draw, and annotate on PDFs with every mark becoming a note
- Outliner with live Markdown and LaTeX for mathematical notation
- AI chat to ask questions about papers with cited answers
- Full-library search across notes, highlights, and all PDFs
- Shared workspaces with live cursors and comments for collaboration
- Works offline on iPad, Android, and desktop with automatic sync
- Integrations with Zotero, Obsidian, Logseq, and Notion
- Browser extension for one-click saving papers with metadata
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| What makes it different | - Three specific conversion workflows instead of one-size-fits-all approach
- Complete offline processing with no cloud uploads required
- Lifetime license with no monthly subscription fee
- Extensive customization of PDF output including paper size, orientation, resolution, and metadata
- Watermarking capability to protect and brand PDF documents
| - Self-hosted option with one Docker image for full control over data
- Live math support with Markdown and LaTeX directly in outliner notes
- Works on any device: Windows, macOS, Linux, iPad, Android, and browsers
- No vendor lock-in with SQLite files and export at any time
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 27 ● no change since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 40 | 0 |
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| Citation Flow (Majestic) | 37 | 9 |
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| Referring domains (Majestic) | 179 | 1 |
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PhotoPDF Photo to PDF Converter
Gamma PDF