Remove Blank PDF Pages Online Free: Auto Detect
Auto-detect and delete empty pages left behind by duplex scanners and separator sheets.
Duplex scanning one-sided documents, separator sheets, and copier glitches leave empty pages scattered through a PDF. This tool scans every page, flags the blank ones, and rebuilds the document with only the real pages. Choose a stricter or more relaxed sensitivity depending on how noisy your scans are.
How to Use It
- Upload your PDF and wait for the local preview to load.
- Adjust the settings: Adjust the available settings and run the tool locally in your browser.
- Download the result: Download the processed file directly to your device.
Frequently Asked Questions
How does the tool decide a page is blank?
Each page is rendered at low resolution and the fraction of non-white pixels is measured against the sensitivity threshold. Any page containing real, non-whitespace text is always kept, even if the text is white-on-white or too faint to see in the preview.
Will removing blank pages reduce the quality of the remaining pages?
No. Detection uses a temporary low-resolution render, but the output is rebuilt by copying the original page objects, so text stays selectable and vector graphics stay sharp.
What if it removes a page I wanted, or misses one?
Switch sensitivity: strict keeps a page on the faintest trace of ink and removes only completely empty pages, while relaxed also drops pages that carry nothing but light scanner noise or specks. Pages that fail to render are always kept to be safe.
Is my PDF uploaded anywhere?
No. Remove Blank PDF Pages runs entirely in your browser using pdf.js and pdf-lib. For supported workflows, file contents are not uploaded for processing; site analytics and the assistant are separate.