Automatically number every page of your PDF with custom position, format, font size and colour. Fast, private and fully browser-based.
Add custom page numbers to any PDF document — or drag & drop
Dudi PDF Page Numbers is a fast, 100% free, browser-based tool that adds clean, professional page numbers to any PDF document in seconds. Whether you are finishing a college assignment, preparing a business report, compiling a contract, assembling a thesis, or printing a long ebook, page numbers make the document easier to navigate, reference and discuss. This tool does all of that without installing software, creating an account, verifying an email or paying any hidden fee. Unlike most online PDF tools, your file is never uploaded to a remote server. The entire process runs inside your browser using the well-known pdf-lib JavaScript library — your PDF is read from your device, the numbers are drawn directly onto the pages, and the finished document stays on your device until you press the Download button. Your confidential files, whether they are bank statements, legal agreements, medical records, invoices, academic transcripts or internal company documents, never leave your computer or phone. There is no signup, no watermark, no daily limit and no page-count restriction beyond your device's memory. The settings panel gives you full control over how the numbers look. You can pick from six positions — top-left, top-center, top-right, bottom-left, bottom-center and bottom-right — with bottom-center being the industry standard for most formal documents. You can choose from five popular formats: plain numbers like 1, 2, 3; the Page X style; the detailed Page X of Y style which shows both the current page and the total count; the compact X / Y style; and the elegant centred - X - style. You can also set the starting number, which is useful when your PDF is a continuation of another document or when you want the first page to carry a different number. On top of that, you can choose any font size between 8 and 36 points, pick any text colour using a colour picker, and adjust the margin from the page edge so the numbers never overlap existing text or get cut off during printing. All numbers are drawn as vector text using the standard Helvetica font, which means they stay perfectly sharp at any zoom level and look crisp on any printer. The original content of your PDF — text, images, charts, signatures and annotations — is never re-compressed or modified, so quality is fully preserved. Because the tool never downloads automatically, nothing is saved to your disk until you choose it: after the numbering is processed, a Download button appears and you decide when to save the file. The downloaded file is always named Dudi PDF Editor Page Number.pdf, and if you number another file in the same session it becomes Dudi PDF Editor Page Number (2).pdf and so on, so your files stay clearly identifiable. The layout is fully responsive, so the settings panel, buttons and status messages all stay easy to use on a small Android phone as well as on a large desktop monitor. After the first page load the libraries are cached, so the tool often keeps working even on a weak connection. If you need more tools, Dudi PDF Editor also offers Merge PDF, Split PDF, Compress PDF, Rotate PDF, Word to PDF, JPG to PDF, editing, signing, protection, watermarking, cropping, OCR, image conversion and many other privacy-first utilities that all run locally in your browser with the same no-upload guarantee.