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Adding page numbers to a PDF stamps a number on each page so readers can cite, print and reassemble the document. This tool numbers every page of your file, starting from 1 on the first page. Each label shows the page number, a slash and the page count, for example 3 / 12. You choose one of four positions, the font size, the margin from the page edge, the text color and the opacity. The numbers are drawn on top of the page as real text in Helvetica. They become part of the page, so keep your original file in case you want a different look later.
Position offers Bottom center, Top center, Bottom right and Bottom left, with Bottom center selected to begin with. Margin sets how far the number sits from the page edge in points. It starts at 24, which is a third of an inch.
Font size accepts 6 to 72 and starts at 12. Text color takes a hex code such as #000000 for black. Opacity runs from 0, which is invisible, to 1, which is fully opaque, and starts at 0.7.
The position is worked out for each page from that page's own width and height. A file that mixes page sizes still gets its number at the same distance from the edge on every page.
Each label carries the page count as well as the page number. Someone holding one printed sheet can see how long the full document is and spot a missing page.
| You want to | Set | Check after |
|---|---|---|
| Number a report people read on screen | Bottom center, Opacity 1 | Zoom in and confirm the number does not touch a footer. |
| Number a document you will print | Bottom right or Bottom left | Print one page as a test and see whether the number sits where you want it. |
| Keep the number quiet next to the content | A smaller Font size and a lower Opacity | Check that it is still readable at the size you will print. |
Drop the PDF on the upload box above, or click the box and pick the file from your device.
Choose a Position, then adjust Font size, Margin, Text color and Opacity. Left as they are, the settings give a black 12 point number at the bottom center, slightly see-through.
Press Run Add Page Numbers, then Download. Look at the first page, the last page and any page with a footer.
Page numbers are easy to add and hard to take back, so this tool keeps the choices few and predictable. Five settings apply to the whole file, the label format is fixed, and the result is a new PDF, which leaves your original free for a second try. The label is real text, so a reader can search for it or copy it. If the stamp cannot be applied, the job fails, and you are never handed an unnumbered copy marked as finished. Numbering one PDF takes no account. The file travels over HTTPS, and free-tier copies are erased automatically no later than 24 hours after the job is done.
| What you see | Why | What to do |
|---|---|---|
| The number lands on a footer or other text | The label is drawn over the existing content at the spot you chose | Change Position or raise Margin, then run the original file again. |
| Two sets of numbers show | The PDF already had page numbers, and the tool does not detect them | Start from a version of the file that has no printed numbers. |
| The numbers look faint | Opacity opens at 0.7, which lets some of the page show through | Set Opacity to 1 for solid numbers. |
| The numbers are wrong after you changed the pages | A stamped number stays with its page | Finish Reorder Pages and Remove Pages first, then number the result. |
A report or assignment was exported without numbers and the brief asks for them. This fits when every page, cover included, may carry a number.
A bundle of exhibits or a contract pack needs a number on every sheet so people can point to a page in a call. The total in each label also shows when a sheet is missing.
Loose printed pages get shuffled. A number and a total on each sheet let you put the stack back in order.
Facts checked on October 16, 2026
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Each page shows its number, a slash and the page count, for example 3 / 12. The text is set in Helvetica in the size and color you choose.
No, every page is numbered and the count starts at 1 on the first page.
No, the label is always the page number, a slash and the total.
Bottom center, top center, bottom right or bottom left. Use Margin to move it closer to the edge or further from it.
This tool cannot remove them, because they are drawn into each page. Keep the original PDF so you can start again from it.
Opacity starts at 0.7, which lets a little of the page show through. Set it to 1 for solid numbers.
The tool does not detect them. It stamps its own label on every page, so both sets are visible.
After. A stamped number stays with its page, so finish removing and reordering pages first and add the numbers as the last step.