Add page numbers to PDF

Reach for this tool when a PDF needs to be referenced, printed, or reviewed in order. Court filings, tender responses, training manuals, and meeting handouts all read more clearly when reviewers can say "see page 14" instead of scrolling and guessing. Numbering a proposal or report before you send it for sign-off also makes feedback easier to track across a team.

A common workflow is to assemble or merge several documents first, then add numbers as the final step so the count runs continuously across the whole file. Because numbers are stamped on every page from the start value onward, the sequence stays unbroken regardless of how many sections were combined beforehand.

The starting number is adjustable, which helps when a document is one part of a larger set. If chapter one ended on page 30, you can start chapter two at 31 so the two PDFs read as a single continuous run when printed or bound together.

You get three placement choices: bottom-center, bottom-right, and top-right. Bottom-center suits books and reports; bottom-right matches many corporate and legal templates; top-right works when the foot of each page is already crowded with footnotes or a footer. Numbers sit a fixed margin in from the page edge, so placement stays consistent across pages of differing content.

Font size is adjustable and clamped to a sensible range, roughly 8 to 24 points, so the number stays legible without dominating the page. The default of 11 reads cleanly on standard letter and A4 layouts. If your pages are dense, a smaller size keeps the number unobtrusive; for large-format or presentation pages, size it up.

The number is drawn in a clean Helvetica face in dark gray. This version does not offer color, bold, or prefix text such as "Page X of Y" - it stamps the figure itself. If you need a specific house style beyond position and size, that is a known limit of the current tool.

Every step here runs inside your browser. The PDF is read, stamped, and saved locally using an in-page PDF engine, and the finished file is handed back to you as a download. Nothing is uploaded to a server, which matters for contracts, financial statements, and other documents you would rather not transmit. The generated download link is also cleaned up automatically after a short window.

The tool needs a valid, unencrypted PDF. If a file is password-protected or its security settings block modification, processing will stop with an error rather than producing a broken result; remove the protection first, then number the pages. Corrupted files that cannot be parsed will also be rejected at the upload stage.

A practical habit: keep your original file. The numbers become part of the page content layer, so there is no one-click "undo" once you have downloaded the stamped version. If you later need a clean copy or want to renumber from a different start value, rerun the tool on the untouched original.