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Select a PDF file to add blank pages
How to Insert Blank Pages
Upload your PDF file
Choose insert mode: before pages, after pages, or after every page
Enter page numbers (e.g., 1, 3, 5-7) unless using 'every page' mode
Select blank page size—match source or choose standard size
Click Process and download the modified PDF
Key Features
Flexible Positioning
Insert blanks before or after specific pages using page ranges (1, 3, 5-7). Or add a blank after every page for duplex printing preparation.
Page Size Options
Match the size of adjacent source pages automatically, or specify Letter, A4, or Legal dimensions for consistent blank pages.
Client-Side Processing
PDF never leaves your browser. Uses PDF-lib for local processing—no server upload, complete privacy.
Duplex Printing Preparation
Use 'after every page' mode to add blank backs for single-sided documents printed double-sided. Prevents content from bleeding onto the next page's back.
Booklet Page Count Fix
Booklets require page counts divisible by 4. Insert blanks at end to pad 22-page document to 24 pages for proper booklet printing.
Privacy & Security
All processing happens in your browser using PDF-lib. Your PDF never uploads to any server. Safe for confidential documents, contracts, and sensitive materials.
Frequently Asked Questions
Why insert blank pages into a PDF?
Common uses: prepare single-sided documents for duplex printing (blank backs), add separator pages between sections, reserve space for handwritten notes, fix page count for booklet printing (must be multiple of 4).
What does 'Same as source page' mean?
The blank page matches the dimensions of the page it's inserted next to. If inserting after page 3, the blank uses page 3's exact width and height. Useful for mixed-size PDFs.
How do I add blanks for double-sided printing?
Select 'After every page' mode. This inserts a blank after each existing page, so when printed duplex, each original page has a blank back. No page numbers needed—applies to entire document.
Can I insert multiple blanks at one position?
Not directly. To insert 3 blanks after page 5, process the file multiple times or use PDF Merge to combine your PDF with a multi-page blank PDF at the desired position.
What happens to bookmarks and links?
Bookmarks and internal links are preserved but page references update to account for inserted blanks. A bookmark to page 10 becomes page 12 if 2 blanks inserted before it.
Can I insert blank pages into password-protected PDFs?
Only if the PDF allows editing. Edit-locked PDFs cannot be modified in browser. Remove password protection first using a PDF unlock tool, then insert blanks.