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Add page numbers to any PDF
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Add page numbers to PDF files online for free. Choose position, format, and starting number.
Written & reviewed by Helperzy Editorial Team · Updated July 2026
Drop PDF or browse
Add page numbers to any PDF
100% Private & Secure
Your PDF never leaves your browser.
Add the PDF you want to paginate. It loads directly in your browser with no upload, so a thesis, brief, or report stays on your own device while you number it.
Choose the position (such as bottom center), the format (plain numbers, Page X of Y, Roman numerals, or letters), the starting number, and the font size. Enable Skip first page if you have a cover, so numbering begins on the first real content page.
Click Add Page Numbers and the tool stamps them onto each page as text in the margin with pdf-lib, leaving your content intact. Your numbered PDF downloads instantly. Check that the numbers sit clear of any edge content before sharing.
A PDF page numbering tool stamps clean, consistent page numbers onto any document in the position you choose — top or bottom, and left, center, or right. "See the table on page 12" only works if the pages are actually numbered, and a paginated document simply looks finished and is far easier to navigate and discuss. Students preparing a thesis, lawyers filing a paginated brief, businesses compiling a long report, and anyone assembling a document from several sources all need this, because reliable page references are essential the moment a file gets long enough to talk about over a call or cite in a table of contents. The tool draws the numbers onto each page as text with pdf-lib, leaving your existing content untouched underneath. You choose the format — plain numbers, a "Page X of Y" style, lowercase Roman numerals, or letters — and set the starting number, so a file that continues from an earlier section can begin at the right figure. You can also skip the cover page so numbering starts on the first real content page, and adjust font size and placement to match your layout. Because the numbers are added in the margin area, they normally sit clear of your content. Here is a concrete case. Suppose you have a 30-page report with a title page, and you want numbering to start on the first content page and read "Page 1 of 29" through "Page 29 of 29" at the bottom center. You upload the file, choose the Page X of Y format, set the position to bottom center, enable Skip first page, and apply. In a moment you download a 30-page PDF where the cover stays clean and pages 2 through 30 carry a centred reference reading Page 1 of 29 up to Page 29 of 29. Notice the arithmetic there, because it catches people out: with the cover skipped the total counts the numbered pages, not the file's 30 physical pages. The added text is tiny — a 10-point number per page — so a 4.1 MB report comes back at about 4.1 MB. Switch the format to lowercase Roman numerals and the same run produces i through xxix instead, which is the usual choice for a preface. The practical reasons are steady. A postgraduate student numbers a 140-page dissertation before binding, because the university style guide specifies bottom-centre Arabic numerals starting after the title page and a submission gets returned for less. A paralegal paginates a 300-page exhibit bundle so counsel can say page 212 in court and everyone lands in the same place. A bid manager numbers a 60-page tender response so the evaluation panel can cross-reference the pricing annexe against the technical section without confusion. An author sends a manuscript to a copy editor with numbers added, since editorial notes are useless without a page reference. A committee clerk numbers a set of merged board papers assembled from six separate PDFs, none of which had numbering of its own. A couple of honest notes. Numbers sit in the margin area, so if your pages already carry a footer, a footnote, or artwork bleeding to the edge, choose a different position or you will end up with a number printed on top of existing text. That overlap is the single most common complaint, and a quick look at page 1 of the output catches it. The other misunderstanding: these numbers are drawn onto the page, they are not a live field, so deleting a page later will not renumber the rest — number the document after you have finished adding and removing pages, not before. Mixing schemes in one pass is not possible either; number a Roman-numeral preface and an Arabic body separately, then merge them. Everything is drawn in your browser with pdf-lib, so the file is never uploaded.
Input
A 30-page report with a title page, Page X of Y format, bottom center, Skip first page enabled
Result
A 30-page PDF with a clean cover and content pages reading "Page 1 of 29" through "Page 29 of 29"
Skipping the cover starts the count on the first content page, and the X of Y format gives each page a clear total-aware reference.
Input
A preface numbered i, ii, iii using the Roman numeral format
Result
The preface pages carrying lowercase Roman numerals
Selecting the Roman format applies that style, letting you number front matter separately before combining it with the main body.
Upload your PDF to Helperzy PDF Page Numbers, choose the position and format for the numbers, set the starting number, and click Add. The numbers are stamped onto each page and your numbered PDF downloads instantly, with the whole process running privately in your browser.
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