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Change PDF page size

Need every page on A4 for a form or printer? Choose the new page size and each page is scaled onto it, centred. This changes page dimensions, not the file size — for a smaller file, use Compress PDF.

1. Add a PDF

2. New page size

New page size
Content
mm

This changes the page dimensions, not the file size. To make the file smaller, use Compress PDF. Pages are placed as they are, so text stays sharp and selectable. Links, bookmarks, form fields and comments aren't carried over — use Flatten PDF first to keep comments or filled-in fields.

Add a PDF to start.

How to change a PDF's page size

  1. Add your PDF

    Choose one PDF, up to 100 MB.

  2. Choose the size

    A4, Letter, Legal, A3, A5 or a custom width and height in mm.

  3. Fit or fill

    Fit keeps the whole page (with blank edges if the shapes differ); Fill covers the page and trims the edges. Add a margin if you like.

  4. Download

    Save resized-pages.pdf.

What you can do with this tool

  • Common and custom sizes

    A4, Letter, Legal, A3, A5, or any size in millimetres.

  • Fit or fill

    Keep the whole page, or fill the new size edge to edge.

  • Keeps orientation

    Landscape pages get a landscape page of the new size, if you want.

  • Sharp text

    Content is scaled, not turned into images, so text stays crisp and selectable.

  • Stays on your device

    Your PDF is not uploaded. Free, no sign-up.

Limits and what you get

InputOne PDF, up to 100 MB
SizesA4, Letter, Legal, A3, A5, custom (mm)
ContentScaled to fit or fill, centred
File sizeNot reducedUse Compress PDF for that
Links, form fields and commentsNot keptFlatten first to keep comments or filled-in fields
Outputresized-pages.pdf

Frequently asked questions

How do I change a PDF to A4?

Add the PDF, choose A4 and download. Every page is scaled onto an A4 page, centred.

Will content be scaled or cropped?

Fit scales each page to fit entirely (blank edges may appear). Fill scales it to cover the page and trims what overflows.

Does this reduce the file size?

No, it changes the page dimensions. To make the file smaller, use Compress PDF.

Can I use a custom size?

Yes. Choose Custom and enter the width and height in millimetres.

What does “resize PDF” mean?

It can mean either the page size (this tool) or the file size (Compress PDF).

Will form fields survive?

No. Pages are redrawn on new pages, so form fields, comments, links and bookmarks aren't kept. Use Flatten PDF first if the values or comments matter.

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