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Change PDF Page Size Online — Free and Private

Change PDF page size to A4, Letter, Legal or a custom format, with scaling so nothing is cut off. Add your one PDF and get a PDF resized to A4, Letter or a custom size — no upload, no signup, no watermark.

What you can do with Fix Page Size

A4, Letter, Legal and custom dimensions

Scale or centre content automatically

Add margins and borders while you are there

How to change pdf page size in 3 steps

  1. Add the PDF

    Load the mixed-size document.

  2. Choose the target size

    Pick a standard format or enter your own.

  3. Download the resized PDF

    Uniform pages that print correctly.

Large PDFs break email limits, portal uploads and slow connections. Fix Page Size rebuilds the file on your device, so the wait is your own CPU rather than an upload queue, and the optimised copy stays private — useful when the document contains client data that should not sit in a third-party converter's storage.

No upload

Your one PDF are read locally with JavaScript and WebAssembly — for this tool, nothing is sent to a server.

No signup

No account, no email, no credit card, no trial to remember.

No watermark

What you download is the real file — clean, unmarked and print-ready.

Fix Page Size FAQ

What do I get back after using Fix Page Size?

You get a PDF resized to A4, Letter or a custom size.

Is this tool really free?

Yes. Every tool here is free with no account, no trial and no watermark. There is no daily limit and no paywalled export — the whole toolkit is open source.

Are my files uploaded to a server?

No. Fix Page Size runs in your browser with JavaScript and WebAssembly, so your one PDF are processed on your device and nothing is uploaded for this tool. That matters for contracts, invoices, IDs and anything under an NDA.

Does it work on a phone, and can I use it offline?

Yes. The page works in any modern browser on desktop, tablet or phone, and once it has loaded it keeps working with no connection.

Related PDF tools

Compress PDF Reduce the file size of your PDF. Page Dimensions Analyze page size, orientation, and units. Remove Blank Pages Automatically detect and delete blank pages. OCR PDF Make a PDF searchable and copyable. Merge PDF Combine multiple PDFs into one file. Split PDF Extract a range of pages into a new PDF.

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