Change PDF page sizes to standard formats or custom dimensions.
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Change page size to A4, Letter, Legal, or custom
Change the page dimensions of a PDF to match a standard paper size like A4, Letter, or Legal — or specify custom dimensions. This is useful when a document was created for one paper size but needs to print on another, or when you need consistent page sizing across merged files from different sources.
Standard Presets
Quick-select A4, US Letter, Legal, and other common paper sizes — no need to look up dimensions.
Custom Dimensions
Enter exact width and height values for non-standard sizing requirements.
Content Scaling
Choose to scale page content to fit the new dimensions or keep original sizing with margins.
Fully Offline
The resize happens entirely in your browser — no file upload required.