Resize Pages
Scale a PDF to a standard page size — A4, Letter, Legal and more — right in your browser.
Drop your file hereTap to add your file
or click to choose · nothing leaves your device
Private by design. This tool runs entirely in your browser — your file is processed on your device and is never uploaded to us. How this works
Resize Pages changes the page size of a PDF to a standard format and fits the existing content onto it. It’s the fix when a document is the wrong size for printing or uploading — an A4 file that needs to be US Letter, mixed page sizes that should be uniform, or a large format you need shrunk to A5.
Each page’s content is scaled proportionally and centred on the new size, so nothing is stretched or cut off. It runs entirely in your browser, so your file is never uploaded — free, private, with no account and no watermark.
How it works
Ream sets every page to the size you choose and scales its content to fit, keeping the aspect ratio so text and images stay in proportion. Landscape pages are matched to a landscape version of the target size automatically. The result is a clean, uniform document ready to print or submit.
How to Resize Pages
Add your PDF
Drop the file onto the box above or click to browse. It stays on your device.
Choose a page size
Pick A4, US Letter, US Legal, A3 or A5.
Resize & download
Ream scales the pages and hands you the resized PDF.
Supported page sizes
| Size | Dimensions | Common use |
|---|---|---|
| A4 | 210 × 297 mm | Standard worldwide |
| US Letter | 8.5 × 11 in | US / Canada standard |
| US Legal | 8.5 × 14 in | Contracts, legal documents |
| A3 | 297 × 420 mm | Posters, spreads, plans |
| A5 | 148 × 210 mm | Booklets, handouts |
How the content is fitted
Resizing keeps your content in proportion. Ream scales each page to fit the new size while preserving the aspect ratio, then centres it — so nothing is distorted and nothing runs off the edge. If a page is landscape, it’s matched to the landscape orientation of your chosen size. To trim wide margins instead of scaling, use Crop PDF.
When you’ll use it
- Converting an A4 document to US Letter (or the reverse) for printing.
- Making a file with mixed page sizes uniform.
- Shrinking a large format down to A5 for a booklet.
- Meeting a page-size requirement for an upload or print shop.
Why choose Ream
Standard sizes
A4, US Letter, US Legal, A3 and A5 — pick the one you need.
Content fitted, not stretched
Pages are scaled in proportion and centred, so nothing is distorted or cut off.
Runs in your browser
Nothing is uploaded — the file never leaves your device.
Free, no watermark
No account, no watermark, no limits.
Frequently asked questions
How do I resize a PDF to A4?
Add the file, choose A4, and click Resize. Every page is scaled to A4 with the content fitted in proportion.
Can I convert A4 to US Letter?
Yes — pick US Letter as the target size and the pages are rescaled to it.
Will my content be stretched?
No. Content is scaled proportionally and centred, so it never looks stretched or squashed.
What about landscape pages?
Landscape pages are matched to the landscape version of your chosen size automatically.
Is my file uploaded?
No. Resizing runs entirely in your browser — the PDF stays on your device.
Is it free?
Yes — free, no sign-up, and no watermark.