Free page size converter

Resize PDF pages to A4, Letter or any size

Make a mixed document print cleanly on one paper size, convert US Letter to A4 for international clients, or add white space around pages for binding and notes.

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Nothing to install
Works on phone, tablet and desktop

The Resize Pages tool in PDFbat with A4 selected as the target size

Scale content to fit a new page

Resize builds a new page of the size you choose for every page in your document and places the original content on it, scaled to fit and centered. The aspect ratio is always kept, so nothing is stretched. If the shapes differ, for example Letter content on an A4 page, the leftover space becomes an even white border.

Content stays vector: text remains sharp and selectable and images are not resampled. Rotated pages are straightened during the process, so every page in the result is upright.

One page size for the whole document

Standard sizes

A3, A4, A5, Letter, Legal, Tabloid and Executive are one click away.

Custom dimensions

Type any width and height in points for labels, cards or special print formats.

Keeps orientation

Landscape pages stay landscape and portrait pages stay portrait, automatically.

Add margins

Add white space around every page for binding, hole punching or handwritten notes.

No quality loss

Text and images are placed, not converted to pictures, so everything stays sharp.

How it works

1
Upload your PDF
Drop the file on the page or choose it from your device or Drive.
2
Pick a target size
Choose a paper size, Custom with your own width and height, or Add margin only. Set a margin if you want space around the content.
3
Download
Every page is rebuilt at the new size in seconds. Download it or send it to another tool.

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Every option explained

Target size: A3, A4, A5, Letter, Legal, Tabloid or Executive. A4 is the default.
Custom: Shows Width and Height fields in points. 595 by 842 is A4; 612 by 792 is US Letter. 72 points equal one inch.
Add margin only: Keeps each page's own size and adds the margin around it, so pages grow instead of content shrinking.
Margin (pt): White space between the content and the page edge, 0 by default. With a fixed paper size, content is scaled down to leave this space.
Match orientation of each page: On by default. A landscape page gets a landscape version of the target size. Turn it off to force every page into the exact width and height you chose.

When resizing helps

Letter to A4 (or back): send documents to clients in another country that print on different paper.
Mixed page sizes: a merged file with scans, receipts and full pages becomes one uniform size.
Binding and hole punching: add a 36 pt margin so nothing important gets punched.
Smaller handouts: scale A4 pages to A5 for booklets.
Print shop requirements: produce exactly the custom size a printer asks for.

Resize, crop or N-up?

Resize changes the page and scales content to fit it. Crop PDF cuts away parts of the page without scaling anything. N-up places several pages on one sheet. If a scan has big empty borders, crop first and then resize, so the content ends up larger on the new page.

Tips

Form fields and comments are not carried over when pages are rebuilt. Fill the form with Fill and Sign and lock it with Flatten PDF before resizing.
Check the first page after resizing. If the white border looks too big, try the orientation option the other way.
Points are the most precise unit. One millimetre is about 2.83 points.