UPDF AI

A Smart All-in-One AI PDF Reader

UPDF AI Proofreader quickly spots errors and suggests corrections, helping you create professional, clear, and easy-to-understand content.

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GPT-5 | DeepSeek R1

5000+ Reviews

4.8

UPDF AI available on

Desktop & mobile app

Mac

Windows

iOS & iPadOS

Android

2M+ Users, 50M+ PDFs Opened, Trusted by Leading Medias:

How to Read PDF with UPDF AI?

Extract Information/Text: When reading long or scanned PDFs, UPDF AI helps you skip manual scanning. Upload your file, and it auto-extracts key points from both standard and scanned PDFs. Need the full text? Enter a prompt like “Extract all text” to read everything clearly.
Summarize: For dense reports or academic papers, UPDF AI gives you instant clarity. Upload the PDF to receive an automatic, structured summary. You can summarize selected pages, the entire file with one click, or paste text for a custom summary—perfect for faster, easier reading.
Translate: When encountering foreign-language documents, UPDF AI removes the friction. After uploading, open the Translate tool and choose Page-by-Page or Side-by-Side translation. View original and translated content together to read smoothly without switching tools.
PDF to Mind Map: For extremely long PDFs, UPDF AI helps you grasp the structure at a glance. After uploading, click Mind Map above the input box and select the page range to convert. You’ll get a clear, visual mind map that makes reviewing and understanding lengthy content much easier.

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UPDF AI Fits Every PDF Reading Need

Reading Long Reports or Research Papers

When documents are too long to digest, UPDF AI helps you extract key points, summarize chapters, and even build mind maps for faster understanding.

Reviewing Foreign-Language PDFs

Whether it's academic literature or work files, UPDF AI’s page-by-page and side-by-side translation features make cross-language reading effortless.

Working with Scanned or Image-Based PDFs

For scanned contracts, invoices, or old documents, UPDF AI auto-reads the content and extracts key information so you can read them just like normal text PDFs.

Preparing for Meetings, Assignments, or Reports

Quickly turn dense PDFs into clear summaries or converted formats like Word and PowerPoint—perfect for saving time before presentations or submissions.

Understanding Complex Technical or Financial Documents

UPDF AI helps break down technical manuals, financial statements, and data-heavy documents, making them easier to read and interpret.

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Why UPDF AI Makes PDF Reading Easier

All-in-One Reader

Read, summarize, translate, extract text, create mind maps, and convert PDF—all on one platform. No switching tools, no wasted time.

Free to Start

Upload up to 5 PDFs for free, or use Guest Mode to read PDFs without logging in. Start instantly at no cost.

Smarter Dual AI

Enjoy higher accuracy and deeper understanding with two leading AI models (GPT-5 & DeepSeek R1). Switch freely based on your task for the best reading experience.

UPDF AI Writer vs. AI PDF Readers

UPDF AI Writer

FAQs for UPDF AI PDF Reader

1. Can I edit the text extracted from UPDF AI PDF Reader?

Yes. Any text extracted using UPDF AI PDF Reader is fully editable. You can copy it or paste it into other apps and documents as needed.

2. Is UPDF AI PDF Reader compatible with all devices?

Absolutely. Being browser-based, UPDF AI PDF Reader works on desktops, laptops, tablets, and smartphones. You can access it through any modern web browser. It’s also integrated into the UPDF app for Windows, macOS, iOS, and Android, providing a complete PDF editing and reading experience for frequent users.

3. How secure is my data when using UPDF AI PDF Reader?

Your privacy and security are our top priorities. UPDF AI PDF Reader processes your documents securely and does not store or share any uploaded files or extracted content. We also fully comply with GDPR to ensure your data is protected. Learn more details about our Privacy Policy>>

4. Can I use UPDF AI PDF Reader for scanned PDFs?

Yes. UPDF AI can automatically read scanned PDFs, extract text, and summarize key points without any extra OCR setup.

5. Are there any limits on file size or number of PDFs?

Free users can upload up to 5 PDFs, and Guest Mode allows usage without logging in. For larger volumes, the paid version is recommended.