Add Page Numbers

The Add Page Numbers tool stamps clean, consistent numbering onto every page of a PDF without re-exporting from the original application.

Drop in a file, choose where the numbers sit — any of the six corners or edge centers — pick a font size and margin, and write the label however you like.

The format field understands two tokens: "{n}" for the current page and "{total}" for the page count, so "Page {n} of {total}" produces "Page 3 of 12" while a bare "{n}" gives a quiet number in the corner.

A start value lets you offset the count, which is handy when a cover sheet should not be numbered or when a chapter continues from an earlier file — set it to 0 to skip the cover, or to 17 to carry on where the previous part left off.

The text is measured precisely before it is placed, so right-aligned and centered labels line up exactly rather than drifting with longer numbers near the end of a long document.

Everything happens locally with pdf-lib: the PDF is parsed, the labels are drawn, and a fresh file is handed back as a download, all inside your browser.

Nothing is uploaded, which matters for contracts, statements and drafts, and the tool keeps working offline once loaded.

Your original file is left untouched.