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AI Read

Intelligent PDF reader, Al chatting, summarizing, explaining, rewriting your PDFs.

Crop PDF

Crop PDF online to a selected area, and adjust margin size swiftly.

Edit PDF

Use the best online PDF editor to edit PDFs in your browser.

Compress PDF

The easiest way to reduce PDF size online.

PDF to HTML

Convert your PDF documents to an HTML web page.

Word to PDF

Convert Word into PDF quickly.

Chat with Your PDFs
- Talk to your papers, reports, and textbooks intelligently with Al, powered by ChatGPT.
- Answers provide page links to the original file.
- Keep your PDF chat records for easy reference and review.
- Use Al prompts to activate PDF tools.
Crop PDFs with Ease
- Uniformly adjust PDF page size.
- Quickly adjust the margin size.
- Support customized cropping of PDF pages.
Organize PDFs More Efficiently
- Convert PDFs to Office and convert Office to PDF quickly.
- Let you crop, compress, merge, replace text, rotate pages of PDFs, and so on.
- Can set passwords and redact PDFs to protect your files.
- Share files with others via e-mail, links, and QR codes.
Not only PDF Tasks
- Let you compress, crop, resize, and rotate images.
- Easily convert between JPG, PNG, GIF, TIFF,BMP and ICO.
- Can convert images to Word, PPT, TXT, Excel, and RTF format.
Manage Your Documents in One Place
- Convert PDFs to Office and convert Office to PDF quickly.
- Let you crop, compress, merge, replace text, rotate pages of PDFs, and so on.
- Can set passwords and redact PDFs to protect your files.
- Share files with others via e-mail, links, and QR codes.

Why Choose HiPDF?

AI Read

Chat with your PDFs intelligently. Summarize, rewrite, explain content, and ask any questions about the PDF, etc.
Intelligent Interaction

Quickly process your files with Al. Simply enter text commands to complete tasks such as PDF conversion and compression, transforming the way you interact with PDFs.
Chat History

Be able to keep your PDF chat records for easy reference and review in the future. Preview files faster without the need for repeated uploads.
Multiple Languages

You can chat with PDFs in any language or translate text content into other languages.
Cited Pages

Answers provide page links to the original file, which supports redirecting to the specified pages to verify the authenticity of answers.
Secure and Convenient

Adopt the most advanced encryption methods to protect your files from leakage. Process files without downloading, saving you a lot of time!

Trusted by authorities and millions of users.

HiPDF is a member of the PDF Association and has received international authoritative certifications, like ISO 27001 and SSI SECURE.
As a simple but powerful tool, it quickly edits PDFs while keeping file secure, processing millions of files cumulatively.

Interact with PDFs smarter with AI

Popular Tools

AI Read

Al Detector

Crop PDF

Edit PDF

Compress PDF

Replace Text

PDF to Word

PDF to Excel

PDF to HTML

Word to PDF

Chat with Your PDFs

Crop PDFs with Ease

Organize PDFs More Efficiently

Not only PDF Tasks

Manage Your Documents in One Place

Why Choose HiPDF?

AI Read

Intelligent Interaction

Chat History

Multiple Languages

Cited Pages

Secure and Convenient

Trusted by authorities and millions of users.

Free PDF tools process PDF tasks online.