PDF AI: Editor, Scanner, Chat
Summarise, Translate & Sign
Only for iPhone
Free · In-App Purchases · Designed for iPhone. Not verified for macOS.
AI-powered PDF toolkit built for speed, security, and clarity. Edit, read, convert, and collaborate—without friction.
What you can do
• Edit PDFs: Modify text, images, and layout with precision.
• Read smarter: AI summaries, highlights, bookmarks, day/night/Sepia.
• Annotate & collaborate: Highlight, underline, notes, sketches, share.
• Fill & sign: Complete interactive forms and e‑sign on the go.
• Convert fast: PDF ⇄ Word/Excel/PPT/Images/TXT with high fidelity.
• Scan & organise: Search, manage, and work offline securely.
Why it’s better
• Lightning-fast viewer for large PDFs.
• Privacy-first: local processing and strong encryption.
• Professional output, zero watermarks for subscribers.
• Continuous updates with new AI capabilities.
VIP (auto‑renewable subscriptions)
• Monthly or yearly plans available.
• Unlock premium tools: advanced editing, full‑text search, batch processing, high-quality exports, and more.
Policies
• Privacy: https://sophoninc.com/privacy.html
• Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
• Terms of Service: https://sophoninc.com/terms.html
Contact
• Email: feedback@sophoninc.com
more This update includes performance improvements and minor refinements for a smoother, more reliable experience.
2.6.1 3 Sept
PDF AI is now more powerful than ever.
• Chat with PDFs and get instant answers
• Summarise long documents into clear key points
• Generate slides from PDFs, reports, and papers
• Turn documents into podcast-style audio
• Create visual digests and insight cards
• Scan documents with smarter OCR
• Fill, sign, convert, annotate, and edit PDFs more smoothly
We also improved document loading, export reliability, and overall performance.
2.6.0 28 Jun
• Faster, more reliable PDF editing on all devices.
• Smarter AI Assistants for homework and multilingual translations.
• Higher-fidelity PDF ⇄ Word/TXT conversions.
• Many fixes and performance improvements.
2.5.7 28 Apr
• Faster, more reliable PDF editing on all devices.
• Smarter AI Assistants for homework and multilingual translations.
• Higher-fidelity PDF ⇄ Word/TXT conversions.
• Many fixes and performance improvements.
2.5.6 15 Apr
• Faster, more reliable PDF editing on all devices.
• Smarter AI Assistants for homework and multilingual translations.
• Higher-fidelity PDF ⇄ Word/TXT conversions.
• Many fixes and performance improvements.
2.5.5 6 Apr
• Faster, more reliable PDF editing on all devices.
• Smarter AI Assistants for homework and multilingual translations.
• Higher-fidelity PDF ⇄ Word/TXT conversions.
• Many fixes and performance improvements.
2.5.4 11 Feb
• Faster, more reliable PDF editing on all devices.
• Smarter AI Assistants for homework and multilingual translations.
• Higher-fidelity PDF ⇄ Word/TXT conversions.
• Many fixes and performance improvements.
2.5.3 15 Jan
• Faster, more reliable PDF editing on all devices.
• Smarter AI Assistants for homework and multilingual translations.
• Higher-fidelity PDF ⇄ Word/TXT conversions.
• Many fixes and performance improvements.
2.5.1 23/12/2025
Version 2.5.0 Updates:
1. Enhanced PDF editing capabilities with improved performance and stability.
2. Upgraded AI Assistants with better accuracy for homework assistance and multilingual translations.
3. Optimised PDF Converter with faster processing for PDF to Word and TXT conversions.
4. Bug fixes and performance improvements for a smoother user experience.
2.5.0 04/12/2025
Version 2.4.2 Updates:
1. Enhanced PDF editing capabilities with improved performance and stability.
2. Upgraded AI Assistants with better accuracy for homework assistance and multilingual translations.
3. Optimised PDF Converter with faster processing for PDF to Word and TXT conversions.
4. Bug fixes and performance improvements for a smoother user experience.
2.4.2 27/09/2025
Version 2.4.1 Updates:
1. Enhanced PDF editing capabilities with improved performance and stability.
2. Upgraded AI Assistants with better accuracy for homework assistance and multilingual translations.
3. Optimised PDF Converter with faster processing for PDF to Word and TXT conversions.
4. Bug fixes and performance improvements for a smoother user experience.
2.4.1 09/09/2025
Version 2.4.0 Updates:
1. Enhanced PDF editing capabilities with improved performance and stability.
2. Upgraded AI Assistants with better accuracy for homework assistance and multilingual translations.
3. Optimised PDF Converter with faster processing for PDF to Word and TXT conversions.
4. Bug fixes and performance improvements for a smoother user experience.
2.4.0 05/09/2025
Version 2.3.1 Updates:
1. Enhanced PDF editing capabilities with improved performance and stability.
2. Upgraded AI Assistants with better accuracy for homework assistance and multilingual translations.
3. Optimised PDF Converter with faster processing for PDF to Word and TXT conversions.
4. Bug fixes and performance improvements for a smoother user experience.
2.3.1 23/08/2025
1. PDF Edit supports you in editing your PDFs.
2. Custom AI Assistants. Supports many AI assistants, such as Ask AI, Homework Assistance, Multilingual Translation Assistant, and more.
3. PDF Converter, supports PDF to Word, TXT.
2.3.0 06/08/2025
AI Tools
- Full Office Suite Integration—seamlessly view and manage Word, Excel, and PowerPoint files.
AI Multimodal Intelligence
- Handle multiple documents, images, and videos effortlessly.
AI Knowledge Base
- Our app never forgets! Access important data anytime, anywhere.
2.2.0 23/07/2025
We've enhanced the PDF Editor for an even smoother editing experience. Effortlessly edit PDFs with improved performance and intuitive interactions—making document editing simpler and faster than ever!
AI Reading Enhanced
- Ideal for students, researchers, and professionals—improved comprehension for academic papers, reports, and documents.
- Longer context and smarter memory with advanced Retrieval-Augmented Generation (RAG).
- Powered by cutting-edge models: GPT 4.5, Claude 3.7, and Gemini 2.5 Pro.
Brand-New PDF Scanner
- Quickly digitize notes, textbooks, contracts, and more into clear, searchable PDFs.
- Intelligent auto-crop and enhancement features for professional-quality scans.
Optimized PDF Editor
- Enhanced tools for seamless annotation, efficient form-filling, secure document signing, and PDF merging.
- Perfect for collaborative projects, study notes, or business documentation.
Performance Improvements
- Fixed bugs and improved overall stability, ensuring smoother reading and editing experiences.
- Update today—transform your PDF workflow for academic, professional, and daily use!
2.1.0 03/06/2025
AI Reading Enhanced
- Ideal for students, researchers, and professionals—improved comprehension for academic papers, reports, and documents.
- Longer context and smarter memory with advanced Retrieval-Augmented Generation (RAG).
- Powered by cutting-edge models: GPT 4.5, Claude 3.7, and Gemini 2.5 Pro.
Brand-New PDF Scanner
- Quickly digitize notes, textbooks, contracts, and more into clear, searchable PDFs.
- Intelligent auto-crop and enhancement features for professional-quality scans.
Optimized PDF Editor
- Enhanced tools for seamless annotation, efficient form-filling, secure document signing, and PDF merging.
- Perfect for collaborative projects, study notes, or business documentation.
Performance Improvements
- Fixed bugs and improved overall stability, ensuring smoother reading and editing experiences.
- Update today—transform your PDF workflow for academic, professional, and daily use!
2.0.1 13/05/2025
- AI Reading Mode: Now supports Office documents (Word, Excel, PowerPoint), PDF, TXT —effortlessly handle any file type!
- Enhanced AI Conversations: Smarter memory, deeper context, and improved indexing for smoother chats.
- Completely Redesigned UI/UX: Fresh new look, intuitive navigation, and smoother interactions—experience a cleaner, smarter, more engaging app!
- Bugfixes & Stability Improvements: A better, faster, and more reliable app experience.
2.0.0 23/04/2025
- We have fixed several bugs.
- Support PDF Edit, PDF Sign & Fill, PDF Converter.
- Improved product performance and smoother reading experience.
- Supports multiple national languages (German, French, Chinese, Japanese, Italian, etc.).
1.9.1 16/03/2025
PDF Edit – Now Smarter than Ever!
- PDF Edit: Effortlessly modify text, images, and other content within your PDFs. Whether you need to add, delete, or update sections, our intuitive tools give you complete control over your documents.
- Smart Summaries: Let AI summarize lengthy PDFs for faster understanding.
- Key Insights: Automatically highlight important points to save time.
- Enhanced Navigation: AI-powered tools make finding what you need easier than ever.
Plus, we've improved performance and fixed minor bugs to make your PDF experience even smoother. Update now and enjoy a smarter, more efficient PDF management experience!
1.9.0 27/02/2025
PDF Edit – Now Smarter than Ever!
- PDF Edit: Effortlessly modify text, images, and other content within your PDFs. Whether you need to add, delete, or update sections, our intuitive tools give you complete control over your documents.
- Smart Summaries: Let AI summarize lengthy PDFs for faster understanding.
- Key Insights: Automatically highlight important points to save time.
- Enhanced Navigation: AI-powered tools make finding what you need easier than ever.
Plus, we've improved performance and fixed minor bugs to make your PDF experience even smoother. Update now and enjoy a smarter, more efficient PDF management experience!
1.8.0 23/01/2025
We’re excited to introduce AI Reading to PDF Editor Pro!
- Smart Summaries: Let AI summarize lengthy PDFs for faster understanding.
- Key Insights: Automatically highlight important points to save time.
- Enhanced Navigation: AI-powered tools make finding what you need easier than ever.
Plus, we’ve improved performance and fixed minor bugs to make your PDF experience even smoother. Update now and enjoy smarter PDF management!
1.7.0 23/12/2024
1. PDF Converter, supports PDF to Word, TXT.
2. PDF Edit supports you in editing your PDFs.
1.6.0 05/11/2024
Added PDF to DOC and TXT conversion.
Added support for opening DOC, Excel, PPT, and TXT file formats.
Bug fixes.
1.5.0 11/10/2024
This update includes performance improvements and minor refinements for a smoother, more reliable experience.
more Version 2.6.1 3 Sept
Data Used to Track You The following data may be used to track you across apps and websites owned by other companies:
Data Not Linked to You The following data may be collected but it is not linked to your identity:
Contact Info Usage Data Diagnostics 