Loading…
ORGANIZE
Change the page size of a PDF to A4, Letter, Legal or a custom size. Content is scaled to fit.
QUICK ANSWER
To resize a PDF, add the file, choose A4, Letter, Legal or a custom size in points, then download. Each page’s content is scaled to fit the new size without cutting anything off. It runs in your browser, so your file isn’t uploaded.
Updated 31 October 2026 · Written by the StackPDF teamUpdated 31 October 2026 · StackPDF team
You’ll choose the new size next. It stays in this browser.You’ll choose the new size next. It stays in this browser.
PDF files · Runs in your browser
QUICK ANSWER
To resize a PDF, add the file, choose A4, Letter, Legal or a custom size in points, then download. Each page’s content is scaled to fit the new size without cutting anything off. It runs in your browser, so your file isn’t uploaded.
Updated 31 October 2026 · Written by the StackPDF teamUpdated 31 October 2026 · StackPDF team
HOW TO
Drop it here, or choose it from your computer, your phone or My files.
Pick A4, Letter or Legal, or type a custom width and height in points.
Every page, or only the ones you chose, is scaled onto the new size.
PAGE SIZES
Sizes are in points, the unit PDFs use. 72 points make an inch.
| SIZE | POINTS | IN MILLIMETRES OR INCHES |
|---|---|---|
| A4 | 595 × 842 | 210 × 297 mm, used in most countries |
| Letter | 612 × 792 | 8.5 × 11 in, used in the US and Canada |
| Legal | 612 × 1008 | 8.5 × 14 in, for US legal documents |
| Custom | 72 to 2,000 per side | Any size, such as 420 × 595 for A5 |
Content keeps its proportions, so a page can get white space at the edges.
PRIVACY
Yes. Resize PDF pages runs in your browser, so the file never leaves your device.
StackPDF opens the PDF in your browser tab and does the work there.
Close the tab and it’s gone. Free results download to your device. Premium can also keep them in My files.
pdf-lib, PDF.js and qpdf do the work, inside your browser.
FAQ
Add the PDF, choose A4 and download. Pages of other sizes are scaled to fit A4 and centered.
Yes. The free plan includes 1 PDF export a day, with no account. Premium removes the daily limit for $5.99 a month or $39.99 a year.
No. The pages are resized in your browser, so the PDF stays on your device.
No. Content keeps its proportions and is scaled to fit, so a page can get white space at the edges.
Yes. Type the pages, such as 1-3, in the page list. Leave it empty to resize every page.
Use Compress PDF. Resizing changes the size of the pages, while compressing reduces the size of the file.