How to Resize PDF Pages
PDFs created from different sources often have inconsistent page sizes—mixing Letter, A4, and custom dimensions in one document. Resizing standardizes every page to a uniform size for professional printing, binding, or digital distribution. SublimePDF scales, crops, or extends pages to your target dimensions without distorting content.
Follow the step-by-step instructions below, then use the free tool directly — no registration or download required.
Open Tool →How to Resize PDF Pages — Step by Step
Upload your PDF
Open the Resize PDF Pages tool and upload your document. The tool detects the current page dimensions and displays them next to each page thumbnail.
Select target page size
Choose from standard sizes (A4, Letter, Legal, A3, A5) or enter custom width and height in inches, millimeters, or points. The preview updates in real-time to show how content will fit.
Choose the resize method
Pick 'Scale to fit' to proportionally shrink or enlarge content to fill the new page, 'Crop to size' to trim edges, or 'Add margins' to center existing content on a larger page with white space around it.
Apply to specific pages or all
Resize all pages at once for uniform output, or select specific pages that need adjustment. This is useful when only a few landscape pages need to match the rest of the document's portrait dimensions.
Preview and download
Scroll through the preview to verify content isn't clipped or distorted. Pay special attention to pages with content near the edges. Download the resized PDF when everything looks correct.
Pro Tips
- 💡 When converting between Letter (8.5×11") and A4 (8.27×11.69"), use 'Scale to fit' rather than cropping—the size difference is small enough that scaling is invisible but cropping can cut off content.
- 💡 For printing booklets, resize to the target paper size first, then use an imposition tool to arrange pages for folding.
- 💡 If you're resizing scanned documents, higher DPI scans give better results when scaling up because there are more pixels to work with.
- 💡 Use 'Add margins' mode when you need extra space at the edges for hole-punching or binding without shrinking the existing content.
Privacy & Security
All processing happens directly in your browser. Your files are never uploaded to any server — they remain on your device throughout the entire process. SublimePDF uses WebAssembly technology for fast, secure, client-side processing.
Works Everywhere
This tool works on any modern browser — Chrome, Firefox, Safari, or Edge — on desktop, tablet, or mobile. No software to install. PDF is an open ISO standard supported by all major platforms.
How to Resize PDF Pages — FAQ
Will resizing affect text quality?
Can I resize only certain pages in the document?
What happens to annotations and form fields when resizing?
How do I make a landscape page fit in a portrait document?
Related Guides
How to Rotate PDF Pages
Got a PDF with pages that are sideways or upside-down? This commonly happens with scanned documents. SublimePDF lets you rotate individual pages or the entire document.
How to Crop PDF Pages
Cropping PDFs lets you remove unwanted margins, white space, or focus on a specific area of a page. Useful for trimming scanned documents, removing printer marks, or resizing pages.
How to Reorder PDF Pages
Need to rearrange the pages in your PDF? SublimePDF's drag-and-drop interface makes it easy to reorder pages into any sequence you need.