Scale the content of a PDF up or down

Enlarge or shrink the content of a PDF without changing the page size. Ideal for adding white space around content or zooming in on text that is too small. Free and local.

Choose your PDF

Drop here or click to choose

Files stay on your device — nothing is uploaded

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Your file is processed in your browser and never uploaded.

How does it work?

1
Choose your PDF
Drag the PDF here.
2
Choose the scale
Below 100% = extra white space around. Above 100% = enlarged content (may overflow).
3
Download
Download the scaled PDF.

Frequently asked questions

What is the difference from the resize tool?

Resize changes the page size itself. This tool keeps the page size the same but scales only the content — useful for adding margins or adjusting the layout.

Does the text stay selectable?

Yes, the content is scaled as vectors. Text and images remain intact.

Are my files uploaded?

No. Everything happens in your own browser. Your file never leaves your device and is not stored anywhere.

Is it free?

Yes, completely free, without watermark or account. The site is paid for by ads.

Why in the browser?

PDFrust runs entirely in your browser using WebAssembly and modern JavaScript libraries such as pdf-lib and PDF.js. Your file is never sent to a server — all processing happens locally on your device. This means your documents remain private by design, regardless of what they contain. There is no account required, no file size limit, and nothing is stored after you close the tab.