If a PDF has no printed page numbers, review comments such as “see page 12” become hard to follow. You can add numbers to a copy without rebuilding the document or sharing its contents with an online upload service.
Quick answer: Open NexKit Add Page Numbers, choose a supported PDF, select all pages or enter a range, set the first number and its position, then download the numbered copy. This particular tool processes the selected document in your browser. It does not upload the PDF to NexKit’s servers. The page itself still loads scripts and analytics over the network.
Number an entire PDF in five steps
- Keep the original PDF and open the page-numbering tool.
- Choose your document. The tool reads its page count before you proceed.
- Leave the range at all to number every page. Choose the first number (usually 1).
- Choose top-left, top-center, top-right, bottom-left, bottom-center or bottom-right. Adjust font size, margin and color so the numbers do not cover existing content.
- Process the PDF, download the copy and inspect its first, middle and last pages in a PDF reader.
Numbering a PDF adds visible labels; it does not rearrange pages or update a document’s table of contents. If the order is wrong, organize the pages before numbering them.
Add numbers to selected pages only
The range refers to the PDF viewer’s page positions, starting at 1, not a page number printed on the document. The range 1-3,5 selects PDF pages 1, 2, 3 and 5. A range such as 2,4,7-9 leaves the other pages unchanged.
Selected pages receive sequential numbers beginning with the first number you set. This is helpful when a cover or appendix should not be numbered. Check the result: the number printed on PDF page 5 may not be “5” if earlier pages were excluded.
What if I need “Page 1 of 10” or Roman numerals?
NexKit’s basic Add Page Numbers tool currently creates simple Arabic integer numbers such as 1, 2 and 3. It does not generate “Page 1 of 10”, Roman numerals, or custom prefixes and suffixes.
For a footer like {page} / {pages}, use Add Header and Footer. That separate workflow supports left, center and right positions in both rows, with the current-page and total-page placeholders. It also supports Chinese text. Use the simpler numbering tool when you only need an integer.
Limits and test evidence
The current Add Page Numbers workflow accepts PDFs up to 25 MB and 300 pages; encrypted and damaged files are not supported. Large PDFs can exhaust a phone’s memory even below those limits.
NexKit’s published August 2026 boundary test checked 299, 300 and 301 pages in desktop Chromium: 299 and 300 were accepted and 301 was rejected. The exact 25 MB byte boundary was not tested. That result is limited to the tested fixtures; it is not a promise about every PDF or phone.
Common mistakes to avoid
- Numbering before merging: merge or reorder your pages first, then add the final numbers.
- Using printed page labels as the selection: count from the PDF viewer’s page 1, including the cover.
- Covering an existing footer or stamp: change the position and margin, then inspect the output.
- Assuming numbering changes document structure: embedded links, forms, bookmarks and advanced annotations may need separate verification.
- Overwriting the source: keep both versions until the recipient approves the numbered file.
Frequently asked questions
Can I add page numbers to a PDF for free?
The currently available NexKit browser tool lets you run this workflow without an account. Its actual file-size and page-count limits are on the tool page; no paid product or external upload is required to number a supported PDF here.
Can I do this on an iPhone or Android phone?
The tool runs in a modern browser on phones as well as desktops. Large documents may be limited by available browser memory. For an important file, open the downloaded result and inspect more than one page.
Are my PDF pages sent to NexKit?
The selected PDF and its processed output remain local for the supported browser workflow. Loading the website and analytics are separate network requests; this is not an offline website.
Can I remove page numbers again?
If the original PDF is available, use it. Removing existing numbers from a flattened or scanned page is different from adding them and may require editing the source or obscuring page content.
Start here: Add Page Numbers to PDF · Headers and total-page counts · Tested page limits.