调整页面大小

Upload your PDF and choose a preset like A4 or Letter, or enter custom width and height. The tool scales your content to the new dimensions while keeping the aspect ratio, then lets you download the resized file.

You can select common presets such as A4 and Letter, or specify your own custom dimensions. This makes it easy to convert between regional paper standards or fit pages to a particular layout requirement for printing or sharing.

No. When fitting pages to new dimensions, the tool preserves the aspect ratio so text and images stay proportional and readable rather than stretched. The result keeps its quality, ready for print shops or standardized assignments.

Yes. If you have scanned pages of varying sizes or a document mixing formats, you can resize them all to one consistent size, which is ideal before sending files to a print shop or unifying a compiled PDF.

It's free with no signup. All resizing runs locally in your browser, so your PDF is never uploaded to any server. Your documents stay confidential on your device from start to finish.