crestpdf

Resize PDF

Change the page size of a PDF or add margins

Change the page size of your PDF to A4, Letter, A3 or any custom size, or add margins around every page.

  • A4, Letter, Legal, A3 and custom sizes
  • Done in seconds
  • Free, no watermarks

How it works

How to resize a PDF

  1. 01

    Drop your PDF into the upload area, or click to browse.

  2. 02

    Pick a new page size, or choose Add margins to keep the size and add space around the content.

  3. 03

    Choose how the content fits, the orientation and which pages to change.

  4. 04

    Click Resize PDF and download your file.

01

Standard and custom sizes

Switch between A3, A4, A5, Letter, Legal and Tabloid, or enter any size in millimeters or inches.

02

Fit, stretch or center

Scale content to fit the new page, stretch it to fill the sheet, or keep it at its original size and center it.

03

Sharp text and working links

Text stays selectable and crisp at any size, and links move with the content. A live preview shows the new page first.

Questions

Frequently asked

How do I change a PDF from Letter to A4?

Choose A4 as the page size and keep Scale to fit selected. Each page is scaled to fit A4 and centered, without stretching.

Can I add white margins around my PDF?

Yes. Choose Add margins and enter the margin in millimeters. Every page grows by that amount on all four sides.

Will landscape pages stay landscape?

With Orientation set to Match page, landscape pages get a landscape sheet and portrait pages a portrait one. You can also force every page to one orientation.

Can I resize only some pages?

Yes. Under Pages, choose Custom and enter the pages or ranges to change, like 1-3, 8.

Is Resize PDF free?

Yes. It is free to use, with no sign-up and no watermarks added to your files.

Related tools