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PDFs, quacked open.

32 free tools to join, cut, mark up, shrink and tidy your PDFs. No sign-up, no watermark, and most of it runs right in your browser tab.

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Not sure which tool you need?

Describe the job in plain words and the helper will point you to the right one.

Popular right now

Stitch several PDFs into one file.

Cut one PDF into several, by range or size.

Make it smaller

Shrink the file size of a PDF.

Turn JPG, PNG or WebP images into a PDF.

Number the pages

Add page numbers anywhere on the page.

Stamp DRAFT, CONFIDENTIAL or anything else.

PDF to pictures

Save every page as a JPG or PNG.

See what is hiding inside: metadata, size, forms.

✂️ Join & cut

Merge files, split them, pull pages out.

🗂️ Arrange & repair

Reorder, rotate, resize, crop and fix pages.

Flip page order

Add blank pages

Change page size

Print several per sheet

🖋️ Stamp & annotate

Page numbers, watermarks, headers and text.

Number the pages

Logo or image stamp

Headers & footers

🔁 Make & extract

PDFs to and from images, text and Markdown.

Text or Markdown to PDF

PDF to pictures

🪶 Shrink & restyle

Smaller files, grayscale, dark mode.

Make it smaller

Grayscale & dark mode

🧼 Privacy & cleanup

Inspect, strip metadata, flatten, redact.

Clean & edit properties

🔎 Compare & ask

Diff two PDFs, or ask questions with your own AI key.

Spot the differences

Summarise with AI

🛠️ On the roadmap

11 more tools are planned. Tell us which ones you need first.

Remove a password

Read scans (OCR)

PowerPoint to PDF

Web page to PDF

See the roadmap

Request a feature

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Your files stay with you

Most tools process PDFs inside your browser. When something does need an outside service (like the AI tools), we say so before you start.

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No account, no watermark

Open a tool, use it, download the result. That is the whole deal.

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Bring your own AI key

AI summaries and Q&A use a key you add yourself, so you pick the provider and stay in control of the cost.

📚 PDF how-to guides

How to merge PDF files into one

Step-by-step: combine several PDFs into a single document, in the right order, without installing anything.

How to make a PDF smaller for email

Why PDFs get big, what actually shrinks them, and how to hit an email or upload size limit.

How to remove pages from a PDF

Delete blank, duplicate or sensitive pages from a PDF and keep everything else, in a few clicks.

How to split a PDF into separate files

Cut a PDF by page ranges, every N pages, or one file per page, and download everything as a ZIP.

Common questions

What is iDuckPDF?

iDuckPDF is a free set of online PDF tools: merge, split, rotate, compress, watermark, number pages, redact, compare and more. Most of them run entirely in your web browser.

Is iDuckPDF free?

Yes. There is no sign-up, no watermark, no ads and no paywall. Optional tips help cover hosting.

Are my PDF files uploaded to a server?

For most tools, no. The file is processed inside your browser tab on your own device. The AI tools are the exception: if you add your own API key, the text of the PDF you choose is sent to the AI provider you picked, and the tool tells you first.

Do I need to install anything or create an account?

No. It works in a modern browser on desktop and mobile, with no account.

Which PDF tasks can iDuckPDF do?

Join and cut (merge, split, extract and delete pages), arrange and repair (reorder, rotate, resize, crop, repair), stamp and annotate (page numbers, watermarks, headers and footers), make and extract (images to PDF, PDF to images, copy text), shrink and restyle, privacy and cleanup (metadata, flatten, redact), and compare.

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Free, and kept that way by people like you

iDuckPDF has no ads and no paywall. If it saved you time, a small tip helps keep it going.

Support iDuckPDF