Resize PDF
Convert every page to a standard size — A4, Letter, Legal, A3, or A5.
Drop your PDF here, or click to browse
PDF up to ~100 MB · stays on your device
Updated 2026 · Maintained by the CrispPDF team
US Letter and A4 aren't interchangeable—print a Letter-sized document on A4 paper and you'll get clipped margins or awkward scaling. CrispPDF's Resize tool converts page dimensions precisely, so output fits the target paper perfectly.
Upload the PDF, select A4, Letter, A5, or enter custom dimensions, and download. Content scales proportionally—no cropping, no distortion. For multi-page documents, every page resizes uniformly.
For Indian users printing on A4 (the local standard), resizing US-origin PDFs avoids cut-off edges. For US professionals sending files to international partners, converting to A4 ensures correct rendering abroad.
Because processing happens in your browser, sensitive documents stay private. After resizing, compress the file for email or add page numbers.
// How to use
How to use Resize PDF
- 1
Upload the PDF
Drop the PDF whose page dimensions you need to change.
- 2
Pick a new page size
Choose A4, Letter, A3, or a custom width and height in mm or inches.
- 3
Resize
Click Resize. Pages are scaled or repositioned to fit the new dimensions without cropping content.
- 4
Download the resized PDF
Save the correctly-sized PDF, ready for print or archival.
// Why CrispPDF
Why use CrispPDF for resize pdf?
CrispPDF runs entirely in your browser — your files never touch a server. No signup, no watermarks, no daily limits, no upsells. We built it because every other PDF site is slow, ad-stuffed, or hides the good features behind a paywall. CrispPDF is fast on a phone, fast on a laptop, fast on a 10-year-old machine. Output is byte-clean: signatures stay sharp, compressed PDFs stay readable, conversions preserve layout where the source allows. And because nothing leaves your device, even confidential documents are safe to process. Bookmark this page, share it with your team, and stop juggling five different PDF sites for five different tasks.
- No signup, no email gate
- No watermarks on output
- Files never stored on a server
- Works on phone, tablet, and desktop
// FAQ
Resize PDF — frequently asked questions
+How to change my PDF size to exactly A4 for printing?
Upload to CrispPDF, select A4, and download the resized PDF.
+Can I set custom dimensions in inches?
Yes. Enter width and height manually for non-standard page sizes.
+Will resizing distort my text?
No. Content scales proportionally—text and images stay sharp.
+How do I change the page size of a PDF?
Drop it into CrispPDF's Resize tool, choose the target dimensions, and download.
+Can I resize a US Letter PDF to A4?
Yes. Select A4 and the tool adjusts dimensions automatically.
+Does resizing a PDF cut off the margins?
No. Content scales to fit; margins adjust proportionally.