Resize PDF Page Dimensions Free (A4, Letter)
Change PDF physical page dimensions to standard A4, US Letter, or custom canvas sizes.
How to Resize PDF
Upload Your PDF
Select the PDF document whose page dimensions you want to change.
Select Target Size
Choose from standard sizes (A4, Letter, Legal, A3) or enter custom dimensions.
Download Resized PDF
Click Resize and download your PDF with the new page dimensions applied to all pages.
Resize PDF page dimensions and aspect ratios
Change the physical page layout size of your PDFs. Convert between standard formats like Letter, A4, A3, Legal, or specify custom width and height dimensions to fit your print guidelines.
Resizing occurs in your browser memory, ensuring your document remains secure with zero upload overhead.
Frequently Asked Questions
Are edits made with Resize PDF permanent?
Yes, all changes are permanently written into the downloaded PDF file. Your original uploaded file is never modified — the tool creates a new file with your edits applied.
Is it safe to use Resize PDF with confidential documents?
Absolutely. Resize PDF processes everything locally inside your web browser using JavaScript and WebAssembly. Your files are never uploaded to any external server. Sensitive documents, contracts, and personal files remain completely private on your device.
Is Resize PDF really free? Are there hidden limits?
Yes, Resize PDF is 100% free with no hidden costs. There are no file size limits, no daily usage caps, no watermarks on your output, and no account registration required. Use it as many times as you need.
What page sizes are supported?
Standard sizes include A3, A4, A5, US Letter, US Legal, and Tabloid. You can also enter custom width and height dimensions in millimeters.