How to Add Page Numbers to a PDF Free Online

How to add page numbers to a PDF online

PDFSpot stamps clean page numbers onto every page of your PDF in your chosen position.

1. 1Go to the Add Page Numbers tool above.
2. 2Upload your PDF file.
3. 3Choose the position: bottom-center, bottom-right, bottom-left, top-center, top-right, or top-left.
4. 4Set the starting page number (default is 1).
5. 5Click Add Page Numbers and download your numbered PDF.

Choosing the right page number position

The most common positions by document type:

Bottom-center — the default for most documents, reports, and books. Centred at the bottom of each page.

Bottom-right — common for legal and business documents.

Bottom-left — used in some academic and government documents.

Top-center / top-right / top-left — useful when the bottom margin is already occupied by footers or signatures.

Setting a custom starting page number

If you're numbering a chapter that starts at page 45 in a larger document, set the starting number to 45. The first page of your PDF will be numbered 45, the second 46, and so on. This is useful when working with documents that have been split into sections and need to maintain consistent numbering across parts.

Adding page numbers vs editing the original document

If you have access to the original Word or PowerPoint file, it's always better to add page numbers there before exporting to PDF — the result will be better formatted and consistent with the document's design. Use PDFSpot's Add Page Numbers tool when you only have the PDF (no original source file) and need to add numbering quickly.