Automatically detect and remove blank pages from your PDF.
or drop a PDF here
A blank page is a page with no meaningful visible content — often the back side of a one-sided scanned document, a separator sheet picked up by an automatic document feeder, or an accidental extra page left over from a scan or export.
Blank pages are harmless but add clutter: they inflate page counts, waste paper if the document is printed, and make a document feel unpolished when shared.
This is a browser-based tool that scans every page of a PDF and automatically flags the ones that look blank, based on how much visible (non-white) content each page contains. Upload a PDF, review the flagged pages in a grid, and adjust or override the selection before removing them.
A sensitivity slider controls how strict the detection is, and any page can be toggled by hand — the automatic scan is a starting point, not the final word. Everything runs locally using pdf-lib, so your file is never uploaded to a server.
Click to select or drag and drop a PDF file onto the upload area.
Every page is analyzed automatically and likely-blank pages are pre-marked for removal.
Click any page thumbnail to keep or remove it, and fine-tune the sensitivity slider if pages are being over- or under-flagged.
Click "Remove Blank Pages" to build the cleaned-up document, then download it.
Very light scans, watermarks, or faint page numbers can look blank to the detector — lower the sensitivity percentage so fewer pixels are needed to count a page as having content, or manually uncheck that page.
A page that's mostly empty but has a small stamp, page number, or scan artifact may not be detected as blank — raise the sensitivity percentage, or remove it manually.
If every page ends up marked for removal, there's nothing left to save — keep at least one page.
Password-protected PDFs can't be scanned directly. Remove the password first using the Unlock PDF tool, then run the blank page scan.
Every page is rendered and analyzed after upload, which can take a little longer for documents with hundreds of pages — the page grid updates as each page finishes scanning.
A one-sided document scanned with a duplex scanner, leaving blank backs.
Input
scanned-notes.pdf, 20 pages, 9 detected as blank
Output
scanned-notes-no-blanks.pdf, 11 pages
A stray blank page left at the end of an exported document.
Input
invoice.pdf, 3 pages, page 3 detected as blank
Output
invoice-no-blanks.pdf, 2 pages
No. Scanning and removing pages happens entirely in your browser using pdf-lib and pdf.js. Your PDF file is never sent to a server.
Each page is rendered to an image and analyzed for how much of it is non-white. Pages with less visible content than your chosen sensitivity threshold are flagged as blank.
No automatic detection is perfect — very faint content or tiny marks can be missed or over-flagged. Always review the highlighted pages before downloading, and adjust sensitivity or toggle pages by hand as needed.
Yes — click any page thumbnail to toggle whether it's kept or removed, regardless of what the automatic scan detected.
Not directly — use the Unlock PDF tool to remove the password first, then run the blank page scan on the unlocked file.
No. Kept pages are copied unchanged into the new document — only the blank pages are left out.