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A quick way to understand who this helps, what it solves, and where it connects next.
People finishing reports, briefs, submissions, and scan bundles that need visible page numbering before sharing or printing
Adding clean page numbers to one PDF without opening a desktop editor or a broader document suite
Capture add-page-numbers and number-PDF-pages intent with a focused browser-first finishing tool that fits the current Cleanor PDF workspace
Cleanor Labs
These sections explain the job in plain language and set expectations for what the tool should do well.
To add page numbers to a PDF, open the tool, select one PDF, and set the layout: the starting number, the position on the page, the font size, and the margin from the edge. Preview the placement, then export the updated PDF, which downloads straight to your device.
Setting a custom start number is helpful when the first pages are a cover or table of contents and you want numbering to begin partway through. The position controls let you place numbers in the top or bottom corners or centered along the footer.
Page numbering is one of the most common last-step finishing tasks for a PDF. Many files are complete in content but still need clearer structure for review, printing, or cross-references, and this tool adds that without opening a heavy PDF editor.
Typical use cases include client deliverables, long scan bundles, print-ready handouts, and submission files that need clearer page references. Because the work stays local in your browser, it suits private reports and admin documents where uploading is not an option.
Short answers for the questions people usually have before trying a utility like this.
Yes. This tool adds page numbers to a PDF free, with no signup or watermark. It runs in your browser, so there is nothing to install.
No. The page-number stamping runs locally in your browser, so the source PDF stays on your device the whole time and is never uploaded.
Yes. You can set the starting number so the first numbered page begins at any positive value, which is useful when a cover or contents page comes first.
Yes. The position options cover common top and bottom placements, and you can adjust the margin so the numbers sit cleanly away from the page edge.
Yes. The tool runs in any modern mobile or desktop browser, so you can number a PDF on a phone or tablet without installing an app.
Every tool on Cleanor is free with no sign-up, no credits, and no limits. Files are processed privately in your browser. Looking for on-device phone cleanup and Premium features? That lives in the Cleanor app.
Number every page in the browser, choose where the numbering sits, and export one cleaned-up PDF right away.