# UPDF - AI-Powered PDF Editor — AI Chat, Convert & Sign PDF

> AI-powered mobile PDF editor for reading, editing, annotating, converting, and signing. (iPhone/iPad app by Superace Software Technology Co., Ltd..)

- Source: https://appshunter.io/ios/app/updf-ai-powered-pdf-editor/id1595826623 (this page in markdown: same URL + `.md`)
- Developer: [Superace Software Technology Co., Ltd.](https://appshunter.io/developer/1595826625)
- Category: Productivity, Business
- Price: Free with in-app purchases
- Rating: 4.60/5 from 668 App Store ratings · 913 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.0 · 195 MB
- Languages: American English, Dutch, French (France), German (Germany), Italian, Japanese, Korean, European Portuguese, Russian, Chinese (Simplified, China) and 2 more
- Released: 2021-12-05
- Data updated: 2026-08-29
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/updf-ai-powered-pdf-editor/id1595826623/reviews.md

## What is UPDF?

UPDF for iOS is an AI-powered PDF editor for iPhone and iPad. Read, edit, annotate, convert, sign, and AI chat with your PDFs — all from your iOS device. Summarize lengthy documents, translate full PDFs, scan paper to PDF, and manage all your files in one place.
 
Amazing features of UPDF for iOS:
 
Edit PDF
- Edit text in PDF (change color, font style, font size)
- Edit images in PDF (rotate, extract, replace, and crop images)
- Edit watermark in PDF (add, edit, delete and favor watermark)
- Edit links in PDF (add, edit, copy, and delete)
 
AI Assistant
- Summarize, translate, explain, and rephrase lengthy PDFs in minutes.
- Engage in a chat with UPDF AI and ask it any questions you have.
- Summarize or translate PDF by pages.
- Export conversations to Markdown or TXT files.
- NEW  AI Bookmark Agent: Auto-generate bookmarks and get instant section summaries for any PDF.
- NEW  AI Semantic Search: Search your PDF by meaning, not just exact words.
- NEW  AI Editing Suite: Rewrite, refine tone, or correct grammar directly.
 
Read PDF
- Flexible reading: vertical and horizontal scrolling, single page or two-page view
- Dark mode to protect your eyes
- Add and manage bookmarks with AI Bookmark Agent's help
- Search text in PDF
- Present PDF as a slideshow
- Text-to-speech support
 
Annotate PDF
- Annotate PDFs using markup tools: pencil, highlight, underline, strikethrough, squiggly line
- Add text boxes, text comments, callouts, sticky notes
- Add shapes, stamps, and stickers to PDFs
- Free-hand drawing on PDF pages
 
OCR PDF
- Convert scanned documents and images into searchable and editable PDFs
- Recognize text in 38 languages
 
Scan to PDF
- Scan physical documents to PDF with your camera
- Scan ID cards onto one page
- Crop, rotate, and filter scanned images
 
Convert PDF
- Convert PDF to Word, Excel, PPT, and images
 
Organize PDF Pages
- Insert, replace, extract, split, rotate, remove, and reorder pages in PDFs
- Merge multiple PDFs into one file
- Copy, paste, and share specific pages in a PDF
 
Sign PDF & Fill PDF Form
- Create handwritten signatures
- Import and add image signatures
- Fill PDF form and add e-signatures
- Save signatures to cloud for cross-platform use
 
Create PDF
- Create PDF with blank, lined, dotted, grid, and graph papers
- Combine multiple files/images into one PDF
 
Protect PDF
- Password-protect PDFs to restrict opening, editing, and printing
- Add or remove watermarks
- Add digital signatures
Manage Files
- Upload, create, rename, move, copy, duplicate, and organize files or folders
- Unzip files by simply tapping .zip files
- Search for files
- Supports two-finger multiple selections and operations
- Move files or folders to trash, and find deleted items in the trash
- Protect PDF files with a password or unlock protected PDF files
- Compress one or multiple files into a zip file
 
Security Space
- Protect your privacy by moving files or folders to Security Space
- Enable Face ID & Passcode to access your Security Space
 
Import File
- Import files from Photos albums
- Import files from the Files App
- Transfer files from a computer over the same Wi-Fi
 
View files in All Formats
- Browse dozens of different file formats including PDFs, Office documents (.doc, .docx, .ppt, .pptx, .xls, .xlsx), Pages, Keynotes, and Numbers with a single app
- Open other formats such as text, HTML, XML, Web Archive, Images (JPG, JPEG, GIF, PNG, TIFF, SVG, BMP), video, audio
 
*** Pro Features of In-App Purchase ***
- Use UPDF across all platforms including desktops and mobiles
- Free Users will get 1 GB of Cloud Storage; Paid users will get 10 GB of Cloud Storage for free
- Advanced PDF features such as Convert PDF with OCR, batch process, etc. are available on the desktop
- Unlimited use of Scan to PDF (Free trial only scans up to 5 pages)
- Unlimited use of Security Space (Trial version stores up to 10 items)
- Secure App with passcode/TouchID/FaceID
 
Need help? Email us at support@superace.com

## Key features

- AI-powered summarization and translation
- Edit text, images, and watermarks in PDFs
- Annotate with various markup tools
- Convert PDFs to Word, Excel, and PPT
- Scan documents to editable PDFs
- Sign and fill PDF forms
- Organize and protect PDF files

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| UPDF Pro + AI Unlimited | $118.99 | per year |
| Annual Subscription | $49.99 | per year |
| UPDF Pro + AI Unlimited | $18.99 | per month |
| Monthly Subscription | $9.99 | per month |
| UPDF AI Unlimited | $79.00 | per year |
| UPDF AI Unlimited | $15.00 | per month |
| UPDF Pro + AI Standard | $98.99 | per year |
| Quarterly Subscription | $19.00 | per 3 months |
| UPDF AI Standard | $15.00 | per month |
| UPDF AI Standard | $69.00 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Perpetual License | $79.99 | one-time |
| UPDF & AI Add-on for iOS | $148.99 | one-time |
| Perpetual License | $128.99 | one-time |


## What do users think of UPDF?

Overall sentiment: positive

**Pros**

- 🚀 Excellent PDF editor
- 👍 Intuitive and easy to use
- 🔒 Secure file management
- 💡 Powerful features like AI-powered summarization
- 🚀 Fast and responsive performance
- 👍 Seamless cross-device sync

**Cons**

- 🐛 Occasional crashes or stability issues
- 💡 Need for more customization options
- 💡 Lack of integration with third-party cloud storage
- 🐛 Issues with handwriting recognition and annotation

**Commonly reported bugs**

- Inability to edit text directly in PDF files
- Inconsistent behavior when switching between devices
- Occasional loss of editing progress when app is minimized

**Most requested features**

- Add password protection for PDF files
- Improve file organization and folder management
- Implement keyboard shortcuts for power users
- Expand OCR capabilities and text extraction
- Allow custom signature and stamp imports

## Recent user reviews (10 of 913)

All indexed reviews: https://appshunter.io/ios/app/updf-ai-powered-pdf-editor/id1595826623/reviews.md

### 1/5 — Sucks

*2026-08-24, version 2.5.4*

Not working

### 4/5 — Initial Use

*2026-08-23, version 2.5.4*

I just started using UPDF, and so far it is much better than I expected. It’s much easier to use than other apps, such as Acrobat.
My rating could go up after more use.

### 1/5 — SCAMMERS

*2026-08-20, version 2.5.4*

This app removed all my pdf files I had saved for years. They removed pdf off my computer. Gained control of my computer i can’t reset it back,  they are scammers do not use thdm

### 5/5 — Fast, reliable, and great value

*2026-08-16, version 2.5.4*

UPDF is everything you want in a pdf reader: it is cross platform, ultra fast, reliable. I use it on iPad and MacOS. It is also a great value.

### 3/5 — Pretty helpful

*2026-08-11, version 2.5.4*

I like it but despise capitalism. Thx

### 5/5 — The best IPhone PDF editor

*2026-08-04, version 2.5.4*

Great value for money PDF editor. Deals with large files, all the features including AI

### 5/5 — LOVEEEEEE

*2026-08-01, version 2.5.4*

THE BEST APP

### 4/5 — Good

*2026-07-26, version 2.5.4*

good. but subscription package is expensive

### 5/5 — Can I get a discount on individual license like 50%?

*2026-07-24, version 2.5.4*

I really like this app on my phone and laptop. I would like to buy individual license for life time. Since I live in Myanmar, the price is so much higher compare to our currency. So, I can't afford it. So I am using free version now. It would be great if I get 50% discount or more 😁. Thank you.

### 5/5 — FA 12Step

*2026-07-24, version 2.5.4*

Ok

## Frequently asked questions about UPDF

### What can I do with this PDF editor?

This app allows you to read, edit text and images within PDFs, annotate documents with various tools, convert PDFs to other formats like Word and Excel, and sign PDF forms. It also includes AI features to summarize, translate, and chat with your documents, as well as scan paper documents into editable PDFs.

### How does the AI assistant work?

The AI assistant can summarize lengthy documents, translate entire PDFs, explain content, and rephrase text. You can also engage in a chat with the AI to ask questions about your PDFs. New features include an AI Bookmark Agent for auto-generated bookmarks and an AI Semantic Search for finding information by meaning.

### Is this app free to use?

The app is free to download and offers a range of features. However, advanced functionalities and full access to AI capabilities may require in-app purchases or a subscription to unlock its full potential.

### What devices is this app compatible with?

This application is designed for iOS devices, specifically for iPhone and iPad. It offers a seamless experience across these Apple mobile platforms.

### Can I use this app to convert PDFs to other formats?

Yes, the app supports converting PDF files into various formats, including Microsoft Word (.docx), Excel (.xlsx), PowerPoint (.pptx), and image files. This makes it easy to work with your documents in different applications.

## Version history (last 5 releases)

### 2.5.4 — 2026-07-02

- Added support for editing and saving external iCloud documents.
- Fixed issues reported by some users to improve product stability.

### 2.5.3 — 2026-05-20

- Added support for receiving documents via Handoff.
- Added compatibility with iOS 26.

### 2.5.2 — 2026-04-24

- Supports SMB connection.
- Supports SFTP connection.
- Fixed known issues.

### 2.5.1 — 2026-04-11

- Supports connecting to FTP and WebDAV servers.
- Fixed some known bugs.

### 2.5.0 — 2026-03-31

UPDF 2.5 — Three Powerful AI Upgrades for Your PDF Reader.
 
Work smarter with your documents: read faster, edit with precision, and find anything instantly.
 
• AI Bookmark Agent: Auto-generate smart bookmarks and get instant 3-sentence summaries for every section. Stop scrolling — navigate any PDF document in seconds.
• AI Semantic Search: Find what you mean, not just what you type. Your AI-powered PDF editor now understands concepts, not just keywords — 95% concept accuracy.
• AI Editing Suite: Rewrite, refine tone, or correct grammar directly inside the PDF editor. Professional-grade writing tools, zero copy-pasting.
 
Plus: general performance improvements and stability fixes.

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## More apps by Superace Software Technology Co., Ltd.

- [Nomostar: AI PDF Scanner App](https://appshunter.io/ios/app/nomostar-ai-pdf-scanner-app/id6759766874)

All apps by Superace Software Technology Co., Ltd.: https://appshunter.io/developer/1595826625

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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 2026-08-29.*