UPDF | A Delightful Experience to Read PDFs across All Platforms

UPDF AI Web Unveiled! Chat With Your PDFs Now

Read Faster Than Ever, AI-Accelerated

Accelerate your reading pace by grasping a book summary using UPDF AI, and accessing all-inclusive reading tools, bookmarks, thumbnails, search, etc.

Read Deeper, Gain Valuable Insights

Unlock a world of knowledge by effortlessly looking up word definitions, explaining complex terms, and translating foreign languages with UPDF AI.

Read with Pleasure, All Tools in One App

One App, Limitless Possibilities. Markup, edit, change the background of PDF eBooks, and more within a single platform.

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AI Summarize PDF

UPDF AI can be your Intelligent PDF assistant to extract key insights and let you engage with your PDF.

What is UPDF AI

PDF Bookmarks

Navigate pages through the bookmarks swiftly.

Search in PDF

Find specific words and phrases in the PDF eBooks.

Go Back and Forth

Quickly return to a specific page with one-click.

AI Explain PDF

Elucidate complex terms from the book with UPDF AI instantly.

How to explain a PDF

Lookup Definition

Look up the definition and meaning of words in PDF while you are reading.

AI Translate PDF

Translate foreign books with AI for a broader range of reading opportunities.

How to translate a PDF

Annotate PDF

Create dynamic annotations as you engage with the book.

How to annotate a PDF

Edit PDF

Correct typos, edit images, and make the eBook perfect!

How to edit a PDF

Various Display Modes

Multiple display modes to personalize your reading experiences.

How to read a PDF

Change PDF Background

Relieve eye strain by changing the background color of the PDF document.

How to edit background

Read PDF on the Go

Immerse yourself in knowledge, wherever you are, with the UPDF mobile app at your disposal.

UPDF for iOS UPDF for Android

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Key features of UPDF

UPDF AI

UPDF AIHOT

Summarize, translate, and chat with PDF.

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Edit PDF

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Read PDF

Immerse in seamless PDF reading.

Cloud pdf

UPDF Cloud

Access documents across different devices.

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Annotate PDF

Enhance PDF collaboration with annotation.

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Convert PDF

Transform PDF to/from diverse formats.

Ocr pdf

OCR PDF

Make scanned PDFs searchable and editable.

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Organize PDF

Simplify PDF page organization.

Batch pdf

Batch PDF

Batch convert, combine, insert, encrypt and more.

Password pdf

Protect PDF

Safeguard your PDFs from unauthorized access.

Compress pdf

Compress PDF

Reduce PDF file size to perfection.

Forms pdf

Fill and Sign

Seamlessly create, fill, and sign PDF forms.

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Free trial of UPDF:

Free trial, no credit card required
Convert up to twice per day.
View PDFs
Slideshow PDFs
2 GB UPDF Cloud Storage
Free try all features with trial watermarks

Free trial of UPDF AI:

AI summarize, analyse or translate 3 PDFs
Upload up to 100 pages per file to AI
Ask up to 30 questions
Powered by GPT-4

UPDF Pro

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Buy Now More Plans

Unlock all features in UPDF(excluding AI) across Windows, macOS, iOS and Android, including:

Edit PDF
Convert PDF
Annotate PDF
Protect PDF
Fill and Sign PDF
Batch Process PDF
OCR
2 GB UPDF Cloud Storage

Free trial of UPDF AI:

AI summarize, analyse or translate 3 PDFs
Upload up to 100 pages per file to AI
Ask up to 30 questions
Powered by GPT-4

UPDF Pro+ UPDF AIHOT

/ UPDF Pro (Perpetual)
+ UPDF AI Standard (Yearly)

Buy Now More Plans

Unlock all features in UPDF(including AI) across Windows, macOS, iOS and Android, including:

Edit PDF
Convert PDF
Annotate PDF
Protect PDF
Fill and Sign PDF
Batch Process PDF
OCR
2 GB UPDF Cloud Storage

Full access to UPDF AI Standard：

AI summarize, analyse or translate 100 PDFs/month
Upload up to 1000 pages per file to AI
Ask questions or chat with AI
Get up to 10 GB extra cloud storage
Powered by GPT-4

AI benefits in one account can be shared across Windows, Mac, iOS, Android, and UPDF AI Web.

UPDF Pro (Perpetual Plan)HOT

/ user

Enterprise license management dashboard
24*6 phone or online meeting technical support

Unlock all features in UPDF(excluding AI) across Windows, macOS, iOS and Android, including:

Edit PDF
Convert PDF
Annotate PDF
Protect PDF
Fill and Sign PDF
Batch Process PDF
OCR
20 GB UPDF Cloud Storage

UPDF Pro

From From

Unlock all features in UPDF(excluding AI) across Windows, macOS, iOS and Android, including:

Edit PDF
Convert PDF
Annotate PDF
Protect PDF
Fill and Sign PDF
Batch Process PDF
OCR
10 GB UPDF Cloud Storage

Free trial of UPDF AI:

AI summarize, analyse or translate 3 PDFs
Upload up to 100 pages per file to AI
Ask up to 30 questions
Powered by GPT-4

UPDF Pro + UPDF AIHOT

From From

Unlock all features in UPDF(including AI) across Windows, macOS, iOS and Android, including:

Edit PDF
Convert PDF
Annotate PDF
Protect PDF
Fill and Sign PDF
Batch Process PDF
OCR
10 GB UPDF Cloud Storage

Full access to UPDF AI：

AI summarize, analyse or translate unlimited PDFs
Upload up to 1000 pages per file to AI
Ask questions or chat with AI
Get up to 100 GB extra cloud storage
Powered by GPT-4

AI benefits in one account can be shared across Windows, Mac, iOS, Android, and UPDF AI Web.

*The pricing and available features are based on the specific plans you decide on.

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