PDF Insert Blank Pages
Add blank pages at chosen positions in a PDF, matching the surrounding page size. Useful for duplex printing and binding. No upload required.
Last reviewed by the Radiatus Cloud team
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Why anyone needs blank pages
Almost always for printing. In double-sided output, a chapter that must begin on a right-hand page needs a blank inserted whenever the previous chapter ends on an odd page. Bound documents need blanks so that section breaks fall correctly across sheets. Booklet imposition requires the total page count to be a multiple of four, so up to three blanks are padded onto the end. None of these matter on screen, which is why documents that look fine digitally print wrong.
Match the page size
A blank inserted at the default Letter size into an A4 document produces a mixed-size file that printers handle unpredictably: some scale it, some switch trays, some prompt. Inserting blanks that match the dimensions of the surrounding pages avoids the whole class of problem. Check first if the source document itself has mixed page sizes, which is common in scanned and assembled files.
Positions shift as you insert
Each insertion changes the positions of every page after it. Inserting at positions 3 and 7 in one operation is unambiguous, but inserting at 3 and then separately at 7 puts the second blank one page earlier than intended, because the first insertion pushed everything down. Specify all positions in a single pass, or work from the end of the document backwards.
Truly blank, or blank with a note
A completely empty page in a printed document confuses readers, who wonder whether something failed to print. Publishing convention is to print "This page intentionally left blank", which is mildly paradoxical but genuinely useful. For internal drafts an empty page is fine.
Local processing
Pages are inserted in your browser and the document is never transmitted.
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Frequently Asked Questions
Why would I add blank pages to a PDF?
Almost always for printing: making chapters start on right-hand pages in duplex output, aligning section breaks in bound documents, or padding a booklet to a multiple of four pages. None of it matters on screen.
What size will the blank page be?
It should match the surrounding pages. A Letter-size blank inserted into an A4 document creates a mixed-size file that printers handle unpredictably, scaling it, switching trays, or prompting.
Why did my second blank page land in the wrong place?
Each insertion shifts the positions of all following pages. Specify every position in a single operation, or insert from the end of the document backwards so earlier positions stay valid.
How many blanks does a booklet need?
Enough to make the total a multiple of four, so up to three. Booklet imposition folds sheets into four pages each, and an incomplete final sheet prints incorrectly.
Should a blank page say anything?
In printed documents, convention is to print that the page is intentionally left blank, so readers do not assume a printing failure. Entirely empty pages are fine for internal drafts.
Privacy & Security
Runs entirely in your browser. PDF files are never uploaded.
How to Use
Upload a PDF, enter the page numbers after which blank pages should be inserted, then download the updated file.
Disclaimer: This tool is provided "as is" without warranty of any kind. Results are for educational and utility purposes.
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