Fix PDF Page Size — Standardize Every Page
Set a uniform page size for your entire PDF — A3, A4, A5, Letter, Legal, Tabloid, Executive, or custom. Control how the content is scaled and oriented. Everything runs in your browser.
Key Features
Standard Sizes
Choose from A3, A4, A5, Letter, Legal, Tabloid, and Executive — or enter any custom dimension in points.
Flexible Content Scaling
Fit, fill, stretch, or center the content on the new page, with optional aspect-ratio preservation.
Smart Orientation
Let the tool match each page's orientation automatically, or force portrait or landscape for the whole document.
Uniform Document
Every page is rebuilt to the same size, so your document prints and displays consistently.
100% Private
All processing happens locally in your browser. Your files are never uploaded to any server.
No Install, Free
Works on any device with a browser. No sign-up, no watermarks, and completely free.
Why Fix PDF Page Sizes?
Mixed page sizes are a common problem in PDF documents. A scanned folder, a collection of images, or documents assembled from different sources often contain pages of different dimensions — some A4, some Letter, some irregular. This causes inconsistent printing, awkward page breaks, and an unprofessional look. This tool rebuilds every page to a single target size and gives you full control over how the existing content is scaled and positioned: fit it inside the page, fill the page, stretch it, or keep it centered. The result is a clean, uniform document ready for printing, submission, or archiving.
How to Fix PDF Page Sizes
Fixing page sizes takes just a few steps. Everything runs in your browser.
Upload your PDF
Drag and drop a PDF file or click the upload area to select it.
Choose the target size
Pick a standard size such as A4 or Letter, or enter a custom width and height in points.
Set the scaling and orientation
Choose how the content fits (fit, fill, stretch, or center) and whether the page should be portrait, landscape, or auto.
Fix and download
Click Fix Page Sizes and download the standardized PDF with uniform pages.
Good to Know
Fixing page sizes rebuilds each page: the original content is scaled and repositioned onto the new page size. With Fill mode, parts of the content may be cropped. With Stretch mode, the aspect ratio is not preserved. Password-protected PDFs must be unlocked before processing. The output uses the target size for every page, so documents with mixed sizes become uniform.