How to Resize a PDF Page for Free Online — Change Paper Size
Resize PDF pages to A4, Letter, A3, or custom dimensions for free online. No Adobe Acrobat needed — runs in your browser.
Resize PDF pages to any standard size — A4, Letter, A3, or custom dimensions — for free, in your browser. No Adobe Acrobat, no subscription. FixMyPDF's Resize PDF tool handles it instantly.
When You Need to Resize a PDF
Converting a US Letter PDF to A4 for submission to a UK institution. Scaling an A3 poster down to A4 for printing on a home printer. Resizing a custom-dimension PDF from a design tool to a standard size. Matching page sizes across documents before merging.
How to Resize for Free
Open fixmypdf.in/tools/resize. Upload your PDF. Select the target page size from the dropdown (A4, Letter, A3, Legal, etc.) or enter custom dimensions in mm or inches. Choose whether to scale content to fit or just change the page canvas. Click "Resize PDF" and download.
Scale Content or Crop?
When converting Letter to A4, the content area is slightly different. You can either scale all content proportionally to fit the new size (slight scale factor applied) or keep the original content size and adjust the page boundaries (some margin difference). Choose based on your use case.
Free vs Adobe Acrobat
Adobe Acrobat Pro can resize pages under Document > Crop Pages. But at $19.99/month, it's expensive for occasional use. FixMyPDF provides the same page resizing capability for free, with no monthly fee.
Resizing Before Printing
If your PDF has non-standard page dimensions from a design application (Figma, Canva, or InDesign export), resize to A4 or Letter before printing to avoid automatic printer scaling that can cut off content or add unwanted margins.
Works on All Platforms Free
Mac, Windows, Linux, iPhone, Android, Chromebook — any device with a modern browser can use the resize tool for free. No download, no account, no payment.
Resize and Then Compress
After resizing, the PDF may be larger due to content rescaling. Run through Compress PDF to reduce the file size before sending or uploading to a portal.
Try Resize PDF Now — Free
Browser-based, private, and instant. No account or software required.
Open Resize PDF