PDF Format Modifier

Resize PDF pages to A3, A4, A5, Letter, or Legal with portrait/landscape toggle and adjustable margins.

Click or drag a PDF here

Your file never leaves your browser

About PDF Format Modifier

PDF Format Modifier changes the page dimensions of any PDF to a standard paper size — A3, A4, A5, Letter, or Legal — in portrait or landscape orientation. Content is scaled proportionally to fit the new page size, with configurable margins. All processing runs in your browser using pdf-lib; no file is uploaded anywhere.

How it Works

1Upload a PDF file.
2Choose the target paper size and orientation.
3Set optional margins and scaling behaviour.
4Download the resized PDF.

Frequently Asked Questions

Will content be cropped when resizing?

No. The tool scales page content proportionally to fit within the new page dimensions. Content may shrink or grow but is never clipped.

Can I resize only some pages?

The current tool applies the same target size to all pages. For per-page resizing, use the PDF Editor to manage individual pages.

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About PDF Format Modifier

How it Works

Frequently Asked Questions

About PDF Format Modifier

How it Works

Frequently Asked Questions