Add Blank Pages to PDF
Insert empty pages anywhere in your PDF — at the beginning, end, or after any specific page.
- 1Upload your PDF file
- 2Choose where to insert and how many blank pages
- 3Download the updated PDF instantly
Add Blank Pages
Upload a PDF file to get started — everything runs privately in your browser.
Drag & drop your PDF here
or click to browse from your computer
Why use pdflu for this?
pdflu inserts blank pages into your PDF exactly where you need them — set the position and count, and the new pages match the size of your existing pages automatically. All in your browser, completely private.
Essential for double-sided printing preparation (making chapters start on odd pages), leaving space for notes, or meeting binding requirements that need specific page counts.
Tips for best results
- Enter 0 as the position to insert pages at the very beginning of the document
- New blank pages automatically match the size of your existing pages
- For duplex printing, add a blank page after odd-length chapters so new sections start on the front side
- Combine with Organize Pages afterwards if you need to fine-tune the page order
- Blank pages add almost nothing to file size — they contain no content data
Frequently Asked Questions
Where can I insert the blank pages?
Anywhere — enter 0 to insert at the very beginning, or any page number to insert after that page. Entering the last page number appends pages at the end.
What size will the blank pages be?
They automatically match the size of the page they are inserted next to, so A4 documents get A4 blanks, letter-size documents get letter-size blanks.
How many blank pages can I add at once?
Up to 50 in a single operation. For more, simply run the tool again on the output file.
Why add blank pages for double-sided printing?
When printing double-sided, a chapter ending on an odd page means the next chapter starts on the back of a sheet. Inserting a blank page pushes it to a fresh front side — standard practice in book formatting.
Do blank pages increase the file size much?
No. A blank page contains no content data and adds only a few bytes to the file.