Adding page numbers to a PDF is an essential step when preparing documents for printing, binding, or professional distribution. Whether you are finalizing a thesis, compiling a report for a board meeting, or assembling a manual, clearly numbered pages make it easy for readers to navigate and reference specific sections. This free online tool lets you add page numbers to pdf documents in seconds with full control over position, format, and starting number — no software to install and no account to create.
This add page numbers to pdf tool runs entirely in your browser using client-side JavaScript and the pdf-lib library. Your files are never uploaded to a remote server — they stay on your device from start to finish. You can place numbers at the top or bottom of the page, align them left, center, or right, and choose from several common numbering formats including simple digits, "Page N" labels, "N of Total" counters, and dash-enclosed numbers. A handy option to skip the first page keeps title pages clean, and you can start numbering from any value you choose. There are no file-size limits beyond what your browser can handle, no daily usage caps, and no watermarks added to your output. It works on any modern browser across desktop and mobile devices.