EveryPDFToolChange PDF Page Size Online
Resize PDF pages to A4, US Letter, A3 or A5. Your page content is scaled proportionally and centered on the selected paper size.
Drop your PDF here
or choose a file from your device
Maximum file size: 50 MBResize PDF pages to A4, Letter, A3 or A5
Choose a target paper size and convert every PDF page to the same dimensions. The original content is scaled proportionally and centered so it fits the new page without being intentionally stretched.
This is useful when a PDF contains unusual page dimensions or needs to meet a standard printing, submission or document-format requirement.
How to change PDF page size
Upload your PDF, choose A4, US Letter, A3 or A5 from the target page-size menu, select Change Page Size, and download the resized PDF.
Resize PDF to A4
A4 is a common choice for reports, applications, forms and general printing. Select A4 when you need every page standardized to the same A4 paper dimensions.
Resize PDF to US Letter
Choose US Letter when the document needs to match the common 8.5 × 11 inch paper format used in many offices and submission workflows.
Change PDF dimensions without stretching content
The page content is fitted proportionally inside the selected paper size. The tool preserves the original aspect ratio instead of intentionally stretching the page.
Check the existing PDF size first
If you are unsure what dimensions the document currently uses, open PDF Page Size Checker before resizing.
Page size vs page rotation
Changing PDF dimensions is different from rotating a page. If the page is simply sideways or upside down, use Rotate PDF instead.
Review margins after resizing
Because the original content is centered proportionally on the new paper size, some files may gain extra margins. Review the result before printing or submitting the PDF.
Frequently asked questions
Does this crop the page?
No. The page is proportionally fitted inside the selected target size.
Can I resize a PDF to A4?
Yes. Choose A4 as the target page size and the tool will fit each PDF page proportionally onto an A4 page.
Which PDF page sizes are supported?
A4, US Letter, A3 and A5 are currently supported.
Will the content be stretched?
No. The tool keeps the original aspect ratio while fitting the page.