How to resize a PDF
- 1 Drop your PDF on the box, or click browse to choose it.
- 2 Check the current page size, then choose the new size or enter a custom one.
- 3 Choose the orientation and how the content should fit, and add a margin if you need one.
- 4 Press Resize and download.
Picking the right paper size
Choose A4 for most of the world and US Letter for the US and Canada; scale to fit keeps everything visible. To trim margins instead of changing the paper, use Crop PDF, and make all pages match before merging.
- Add a small margin for home printers.
- Resizing does not reduce the file size.
- Fill and flatten forms before resizing.
Features
Common paper sizes
A4, US Letter, Legal, A3, A5 or custom.
Smart fitting
Scale to fit, stretch, or keep the size and centre it.
Keeps orientation
Portrait and landscape pages are handled automatically.
When to use it
Printing on local paper
Turn a US Letter document into A4 for printing in Pakistan, the UK or Europe, or the other way round for the US. To check the page count, use the PDF Page Counter.
Mixed page sizes
Make every page the same size before merging documents with Merge PDF.
Booklets and handouts
Shrink pages to A5 for small booklets or enlarge them to A3 for posters.
Upload requirements
Some portals require A4 pages. Resize before uploading, then shrink the file with Compress PDF.
Related PDF tasks
Frequently asked questions
Does resizing change the file size in megabytes?
Not much. Resizing changes the paper size, not the image quality. To make the file smaller, use Compress PDF.
Will my content be cut off?
No, with Scale to fit the whole page is shrunk or enlarged to fit inside the new size, keeping its proportions, and centred.
What is the difference between A4 and Letter?
A4 is 210 by 297 millimetres and is used in most countries. US Letter is 8.5 by 11 inches, about 216 by 279 millimetres, and is used in the United States and Canada.
What does stretch to fill do?
It changes the width and height separately so the content fills the whole page. Text and images may look slightly squashed, so use it only when the shapes are close.
Can I add white space around the pages?
Yes. Set a margin in millimetres; the content is scaled to fit inside it.
Are links and form fields kept?
The page content is copied onto new pages, so clickable links and fillable form fields are not kept. Fill and flatten forms first.
Can I resize only some pages?
This tool resizes every page. Extract the pages you need first with Extract PDF Pages, resize them, then merge.
Will text stay sharp?
Yes. Text and vector graphics stay sharp at any size because they are scaled, not turned into pictures.
Is my PDF uploaded?
No. Resizing happens in your browser, so the file stays on your device.
How this tool works. These PDF tools run entirely in your browser using two widely used open-source libraries: PDF.js, the PDF engine built into Firefox, to read and render pages, and pdf-lib to create and edit files. Each tool is tested with typed documents, phone scans and photo-heavy files before it goes live, and nothing you open is sent to a server.
Built and reviewed by Hamza Farooq, founder and lead developer
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