Add Blank Pages
Insert empty pages for booklet printing, note space, or dividers. Blank pages match neighboring page sizes. All local, never uploaded.
How to Add Blank Pages to a PDF
Upload your PDF and pick an insert mode. After every page interleaves blanks through the whole document, which is exactly what you want for a handout with note-taking space. After specific pages lets you type page numbers like 2, 5, 9 and choose how many blanks follow each, good for chapter dividers. Pad to even adds the smallest number of blanks at the end needed to reach an even page count, the standard prep for double-sided printing. At the start and at the end add blanks as new cover or back pages.
Booklet Printing and Even Counts
Double-sided printing pairs pages front and back, so an odd page count leaves the last sheet half empty or pushes content onto an unexpected back side. Padding to an even count fixes this, and professional booklet imposition usually wants a multiple of 4. Run pad-to-even first; if your print shop asks for a multiple of 4, run the result through once more with "at the end" and add the difference. Because inserted pages are truly empty, they add almost nothing to file size.
What Stays the Same
Your original pages are copied verbatim; only new empty pages are added. Blank pages inherit the size of the page they follow, keeping mixed-size documents coherent. Everything runs in your browser with pdf-lib, so documents never upload. If you later need to remove pages instead, the Delete PDF Pages tool reverses the process visually.
Combining Modes and Undoing
You can chain modes by running the tool more than once: pad to even first, then add chapter dividers with a second run on the downloaded result. Each run reads the latest file, so combinations compose cleanly. If you add too many blanks, there is no undo button, but the Delete PDF Pages tool removes them just as easily with its thumbnail picker. Because every run starts from your uploaded file and produces a new download, experimenting is risk-free.
Frequently Asked Questions
How do I insert a blank page into a PDF?
Upload your PDF, then describe where the blank pages go. You can add a set number of pages after every page, insert blanks after specific pages like 2 and 5, or pad the end so the total page count becomes even. Click Insert Pages and download the result. The blank pages match the size of the page they follow, so the document looks consistent.
Why would I add blank pages to a PDF?
The classic reason is booklet printing: printers that fold sheets need the total page count to be a multiple of 4, so you pad with blanks. Other uses include adding note-taking space after each page of a handout, inserting a divider before a new chapter, or adding a blank back cover so a document prints cleanly double-sided without content landing on the back of the last page.
What size are the inserted blank pages?
Each blank page copies the dimensions of the page it follows, so a mixed-size document stays coherent. When you pad at the very end, blanks match the last page. If you choose "after every page," each blank matches the page right before it. You cannot currently pick a custom blank size, but matching the neighbor is what print workflows expect.
Can I add multiple blank pages in different spots at once?
Yes. The "after specific pages" mode accepts a list like 2, 5, 9, and you set how many blanks go after each of those pages. The "after every page" mode inserts the same count throughout, and "pad to even" adds the minimum blanks at the end to reach an even total. Run the tool once per mode if you need a combination.
Does inserting pages change my existing content?
No. Existing pages are copied untouched into the new file; the tool only adds new empty pages between them. Text, images, and layout of your original pages are preserved exactly. Your uploaded file is never modified; the result is a separate download.
Is my file uploaded anywhere?
Never. Page insertion runs entirely in your browser using pdf-lib. Files are read into memory and the new PDF is assembled locally, then downloaded straight to you. The tool works offline once the page has loaded. The tool works offline once the page has loaded.