Automatically remove blank pages from a PDF

Detect and remove blank (or nearly blank) pages from a PDF. The tool analyses every page visually for whiteness. Adjust the threshold for pages with faint content.

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 — every page is analysed immediately.
2
Review
The tool shows how many blank pages were found.
3
Remove & download
Download the PDF without blank pages.

Frequently asked questions

How does the tool determine what is blank?

Each page is rendered at a small scale and the percentage of white pixels is measured. If it exceeds the threshold (default 98%), the page is considered blank.

What if too many pages are removed?

Lower the threshold. Pages with a light background or faint content will then no longer be recognised as blank.

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.