NousPDF: AI PDF Reader & Chat
On-device AI, OCR & edit PDF
Free · Designed for iPad. Not verified for macOS.
Truly free PDF converter. No watermark, no account, works offline. Your files never leave your phone.
Chat with any PDF offline. The AI runs entirely on your iPhone.
NousPDF is an offline AI PDF reader and PDF summarizer a compact language model runs directly on your device after a one-time download. Your documents, chats and AI replies stay on your iPhone. Ask questions, summarise papers, search by meaning once the model is installed, the AI chat works fully offline, anywhere.
CORE AI ON YOUR DEVICE
Chat PDF: ask anything, receive grounded answers with citations
PDF summarizer: summarise long reports in a single tap
Semantic Search: find ideas, not just keywords, using local embeddings
After a one-time model download, works fully offline no account, no third-party AI subscription, no API key
OCR & SCANNING
Handwriting OCR: turn lecture notes and revision cards into searchable text
PDF scanner app: auto-crop, de-skew and enhance contrast
Multi-language text recognition
PDF TOOLS
PDF annotator: highlight, add text and signatures
PDF merger: combine documents with drag-and-drop
PDF split: extract or rearrange pages instantly
PDF compressor: reduce file size without losing quality
PDF converter: convert to and from PDF Word, images and more
Organise a PDF from photos in seconds
PRIVACY FIRST BY DESIGN
GDPR compliant. Your PDFs, chats and AI outputs stay on your device.
The AI runs locally on your iPhone's GPU prompts never leave the device for an AI server.
One-time model file is fetched after that, no document, chat or embedding is ever uploaded.
No built-in analytics, no crash reporting SDK. App is ad supported with transparent consent.
WHO IS IT FOR?
Students working on revision, coursework and dissertations
Researchers analysing long scientific papers
Solicitors, consultants and professionals handling confidential contracts
Anyone who prefers not to upload private documents to a cloud AI
WHY NOUSPDF?
Most AI PDF apps stream your files to a remote server on every question. NousPDF takes the opposite approach the intelligence comes to your document. You get the benefits of AI without sending your content to a third-party AI provider, and after setup it keeps working with no signal at all.
Download NousPDF and read your PDFs intelligently, on your device.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
NousPDF is now a full PDF converter & scanner:
- NEW: Document scanner with automatic edge detection and de-skew — every scan becomes a searchable PDF with a built-in OCR text layer
- NEW: Works on more devices — now supports iOS 16.4 and up
- IMPROVED: Compression actually shrinks heavy photo PDFs now
- AI Chat is still here: on-device, offline after a one-time model download
Tell us what to build next — tap Settings to send feedback.
Happy converting.
The developer, Duong The, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Duong The
- Size
- 76 MB
- Category
- Productivity
- Compatibility
Requires iOS 16.4 or later.
- iPhone
Requires iOS 16.4 or later. - iPad
Requires iPadOS 16.4 or later. - Mac
Requires macOS 13.3 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- Copyright
- © NousPDF