How is this different from other online PDF tools?

Most online PDF tools send your files to a remote server for processing. This tool processes everything locally in your browser using client-side JavaScript. Your files are never transmitted to any server, which means your document content stays entirely under your control.

Are my PDF files uploaded?

No. Your files are read directly by your browser. Your files are never transmitted over the network. The tool works entirely within the browser tab you have open.

Can I verify that files are not uploaded?

Yes. Open your browser's developer tools (F12), go to the Network tab, and watch for any outgoing requests while using the tool. You will see no file data leave your browser. The site may record an anonymous page-view count, which never includes your files and can be disabled.

Does this tool work offline?

Yes, once the page has loaded the tool processes your files entirely in your browser; tool functionality needs no network connection. You can disconnect from the internet and continue using it.

What happens when I refresh the page?

Because nothing is stored on a server, refreshing the page clears your current session. Any files you had selected will need to be selected again.

Does this tool store my files?

No. Files are held in browser memory only for as long as the page is open. Closing or refreshing the page discards them. Nothing is written to disk by the tool, and nothing is sent to a server.

Can this tool unlock password-protected PDFs?

No. This tool does not attempt to remove or bypass PDF password protection. If you know the password, the Unlock PDF tool on this site can remove it locally; then this tool can process the file.

What technologies does this tool use?

This tool uses pdf.js (Mozilla's client-side PDF engine) to render and inspect each page in a Web Worker, and pdf-lib to rebuild the document — all within your browser.

Does this tool use WebAssembly?

No. pdf.js is a plain JavaScript library — it does not use WebAssembly. All rendering and detection happens in client-side JavaScript within your browser.

How do I remove the blank pages from my PDF?

Pick your PDF with the file picker, choose a sensitivity (Strict, Normal, or Aggressive), then press the remove button. The tool renders and scans each page in your browser, then offers a copy with the blank pages deleted to save to your device.

What's the difference between the Strict, Normal, and Aggressive sensitivity settings?

Each setting changes how much faint content a page can have before it still counts as blank: Strict keeps almost any page with a mark, Normal is a balanced default, and Aggressive will also drop pages that have only very light content. If a near-empty page is wrongly kept, try Aggressive; if a lightly-printed page is wrongly removed, switch to Strict.

Does this detect scanned blank pages, not just truly empty ones?

Yes. Detection is based on appearance rather than the page's content stream: each page is rendered to a small white-backed canvas and the fraction of non-white pixels is measured, so a scanned page that looks white is treated the same as a genuinely empty one. Note the scan is at a reduced resolution, so an extremely faint speck may occasionally be missed.

Does it cost anything to use the Remove Blank Pages tool?

Remove Blank Pages is completely free to use — no account, no sign-up, and no limit on how many PDFs you clean up, and it always will be. Every step, from rendering each page to detect blank scans to rebuilding the trimmed document, happens entirely inside your browser, so your file never leaves your device.

Remove Blank Pages from a PDF Privately — Detect and Delete in Your Browser

Select a PDF and the tool renders each page to find blank ones, then downloads a copy with them removed — all detection and processing happen locally in your browser.

Quick answer

What it does: Select a PDF and the tool renders each page to find blank ones, then downloads a copy with them removed — all detection and processing happen locally in your browser.
Free?: Yes — 100% free, no account or sign-up.
Files uploaded?: No — everything is processed in your browser.
Works offline?: Yes — once the page has loaded.
Best for: A secretary cleans up a scanned agenda by removing the blank pages a duplex scanner inserted.
Good to know: Blank detection is heuristic: a near-empty page with a faint mark may be kept, and a page with only very light content may be removed. Adjust the sensitivity if needed.

How it works

Select a PDF file from your device using the file picker.
The file is read into browser memory — no data leaves your browser.
pdf.js renders each page to a small white-backed canvas, and the tool measures how much non-white content it contains.
Pages below the chosen sensitivity threshold are treated as blank.
pdf-lib rebuilds the document from the remaining pages and offers it as a download.

When to use this tool

A secretary cleans up a scanned agenda by removing the blank pages a duplex scanner inserted.
A student strips filler blank pages from a compiled PDF before submitting an assignment.
An archivist tidies scanned document sets before long-term storage to reduce page and file count.
Detection is heuristic — if a lightly marked page is wrongly removed, adjust the sensitivity slider.

Frequently asked questions

How is this different from other online PDF tools?: Most online PDF tools send your files to a remote server for processing. This tool processes everything locally in your browser using client-side JavaScript. Your files are never transmitted to any server, which means your document content stays entirely under your control.
Are my PDF files uploaded?: No. Your files are read directly by your browser. Your files are never transmitted over the network. The tool works entirely within the browser tab you have open.
Can I verify that files are not uploaded?: Yes. Open your browser's developer tools (F12), go to the Network tab, and watch for any outgoing requests while using the tool. You will see no file data leave your browser. The site may record an anonymous page-view count, which never includes your files and can be disabled.
Does this tool work offline?: Yes, once the page has loaded the tool processes your files entirely in your browser; tool functionality needs no network connection. You can disconnect from the internet and continue using it.
What happens when I refresh the page?: Because nothing is stored on a server, refreshing the page clears your current session. Any files you had selected will need to be selected again.
Does this tool store my files?: No. Files are held in browser memory only for as long as the page is open. Closing or refreshing the page discards them. Nothing is written to disk by the tool, and nothing is sent to a server.
Can this tool unlock password-protected PDFs?: No. This tool does not attempt to remove or bypass PDF password protection. If you know the password, the Unlock PDF tool on this site can remove it locally; then this tool can process the file.
What technologies does this tool use?: This tool uses pdf.js (Mozilla's client-side PDF engine) to render and inspect each page in a Web Worker, and pdf-lib to rebuild the document — all within your browser.
Does this tool use WebAssembly?: No. pdf.js is a plain JavaScript library — it does not use WebAssembly. All rendering and detection happens in client-side JavaScript within your browser.
How do I remove the blank pages from my PDF?: Pick your PDF with the file picker, choose a sensitivity (Strict, Normal, or Aggressive), then press the remove button. The tool renders and scans each page in your browser, then offers a copy with the blank pages deleted to save to your device.
What's the difference between the Strict, Normal, and Aggressive sensitivity settings?: Each setting changes how much faint content a page can have before it still counts as blank: Strict keeps almost any page with a mark, Normal is a balanced default, and Aggressive will also drop pages that have only very light content. If a near-empty page is wrongly kept, try Aggressive; if a lightly-printed page is wrongly removed, switch to Strict.
Does this detect scanned blank pages, not just truly empty ones?: Yes. Detection is based on appearance rather than the page's content stream: each page is rendered to a small white-backed canvas and the fraction of non-white pixels is measured, so a scanned page that looks white is treated the same as a genuinely empty one. Note the scan is at a reduced resolution, so an extremely faint speck may occasionally be missed.
Does it cost anything to use the Remove Blank Pages tool?: Remove Blank Pages is completely free to use — no account, no sign-up, and no limit on how many PDFs you clean up, and it always will be. Every step, from rendering each page to detect blank scans to rebuilding the trimmed document, happens entirely inside your browser, so your file never leaves your device.