How do I change the page size of a PDF?

Upload your PDF, choose your target size (A4, US Letter, A5, A3, or custom), select a fit mode (fit to page, stretch, or center), and download the resized PDF.

What page sizes are supported?

Preset sizes include A4 (210×297mm), US Letter (216×279mm), A5 (148×210mm), A3 (297×420mm), and Legal (216×356mm). You can also enter custom width and height in millimeters.

What does "fit to page" mode do?

Fit mode scales the original page content to fill the new dimensions while preserving aspect ratio. Empty margins are added if the aspect ratios differ. This is the recommended option for most use cases.

Will content be cut off when resizing?

In Fit mode, no content is cut — the page is scaled to fit within the new dimensions. In Stretch mode, the content is stretched to exactly fill the new size regardless of aspect ratio.

Resize PDF

Change the page dimensions of a PDF to A4, US Letter, A5, A3, Legal, or custom size.

Your files never leave your device

Drop your PDF here or browse

Supports PDF files

How to Resize PDF

Upload your PDF.
Select a target page size preset or enter custom dimensions.
Choose portrait or landscape orientation.
Select a fit mode — "Fit to page" is recommended for most cases.
Click Apply & Download.

Why Use This Tool?

Resizing a PDF is necessary when printing on a specific paper size, preparing documents for a publishing platform, or converting between international and US paper formats. This tool re-embeds each page into the new dimensions using vector operations — no rasterization, no quality loss.

Resize PDF

How to Resize PDF

Why Use This Tool?

Frequently Asked Questions