# NousPDF: AI PDF Reader & Chat — On-device AI, OCR & edit PDF

> On-device AI, OCR & edit PDF (iPhone/iPad app by Duong The.)

- Source: https://appshunter.io/ios/app/nouspdf-ai-pdf-reader-and-chat/id6762754092 (this page in markdown: same URL + `.md`)
- Developer: [Duong The](https://appshunter.io/developer/1826213498)
- Category: Productivity, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 16.4 · 72 MB
- Languages: American English
- Released: 2026-04-23
- Data updated: 2026-08-20
- User reviews in markdown: https://appshunter.io/ios/app/nouspdf-ai-pdf-reader-and-chat/id6762754092/reviews.md

## What is NousPDF?

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.


## Version history (last 3 releases)

### 1.1.0 — 2026-06-11

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.

### 1.0.1 — 2026-05-08

Fix bug

### 1.0 — 2026-04-23

No release notes.

## More apps by Duong The

- [MelodyAI:AI Song & Music Maker](https://appshunter.io/ios/app/melodyaiai-song-and-music-maker/id6748547768)
- [AI World Monitor: Live Map](https://appshunter.io/ios/app/ai-world-monitor-live-map/id6760740707)
- [Pullix - AI Pull Up Coach](https://appshunter.io/ios/app/pullix-ai-pull-up-coach/id6761921682)
- [LocalCloud: Photo Storage P2P](https://appshunter.io/ios/app/localcloud-photo-storage-p2p/id6795058475)

All apps by Duong The: https://appshunter.io/developer/1826213498

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-20.*