Resize PDF Pages Online Free
Resize PDF pages to A4, Letter, or a custom size — free, no upload.
Drop a PDF here or click to select
Pages will be resized to the selected paper size
About Resize PDF Pages
Change the page size of a PDF to A4, US Letter, A3, A5, or a custom width and height. All page content is scaled to fit the new page dimensions while maintaining the original aspect ratio. Useful for standardising mixed-size PDFs, resizing presentation exports, or preparing documents for printing on a specific paper size.
Use Cases
Converting US Letter PDFs to A4 for international distribution, resizing A3 documents to A4 for standard printing, standardising page sizes in a merged PDF with mixed page sizes, scaling up A5 booklets to A4.
How It Works
For each page, pdf-lib embeds the original page as a form XObject into a new page of the target size, then scales and centres the content to fill the new dimensions. No content is cropped or lost.
FAQs
Will text and images scale proportionally?
Yes. The entire page content is scaled as a single unit to fit the new page size, maintaining aspect ratio and preventing distortion.
What preset sizes are available?
A4 (210×297 mm), US Letter (8.5×11 in), A3 (297×420 mm), A5 (148×210 mm), and a custom size option.
Does it change the orientation?
No. The content orientation is preserved. If the original is landscape, the output will be landscape at the new size.