How do I resize PDF pages to A4 or Letter format?

Upload your PDF, click the target size (A3, A4, A5, Letter, or Legal), then click 'Resize'. Each page is re-rendered inside the new dimensions with content scaled to fit while maintaining aspect ratio.

Does resizing a PDF affect image quality?

Content is embedded as a high-quality vector page copy using pdf-lib's page embedding. Text and vector graphics remain sharp at any size. Image quality depends on the original PDF resolution.

What page sizes are supported?

The tool supports A3 (297×420mm), A4 (210×297mm), A5 (148×210mm), US Letter (8.5×11in), and US Legal (8.5×14in) — covering the most common international and North American document formats.

What happens if the original page is a different aspect ratio?

Content is scaled proportionally to fit within the target page with equal margins (letterbox effect). No content is cropped, and the background is white. All original content remains visible.

Is the PDF page resizer free and private?

Yes — free, no account needed, and your PDF never leaves your browser. All resizing is performed locally with pdf-lib.

PDF resize

PDF Resize Pages

Resize all pages of a PDF to a standard format: A3, A4, A5, Letter, or Legal. Content scales to fit.

Your files are processed locally and never uploaded to our servers.

Drop a PDF here

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How it works

1
Upload your file
Drop your file or click to browse. No size limit.
2
Convert instantly
Processed in your browser — nothing is uploaded to any server.
3
Download the result
Your converted file is ready in seconds.

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