A bare "3" in the corner of a page tells you where you are. "Page 3 of 12" tells you something more useful: whether anything is missing. That's why contracts, invoices, faxes, and legal filings almost always carry the total — if a page goes astray in a print stack or a scan, a reader spots it immediately.
This guide covers adding the total to your page numbers, the formats available, and which to pick for what.
The formats that include a total
The tool offers four variations, and they differ only in style:
- Page 1 of 10 — the most explicit and the most common. Best for contracts, reports, and anything official where clarity matters more than subtlety.
- 1 of 10 — the same information, less verbose. A good middle ground.
- 1/10 — compact. Suits documents where the number should stay discreet, or where space is tight.
- 1 - 10 — an alternative compact form.
There are also formats without a total (1, 2, 3, Page 1, [1],
(1), and Roman numerals) — those are covered in the
main page numbers guide.
If you're unsure, pick "Page 1 of 10." It's unambiguous, and it's what readers of formal documents expect.
The steps
Open Blackpdf's Add Page Numbers tool and drop your PDF in.
Set Number Format to Page 1 of 10 (or
1 of 10,1/10,1 - 10— whichever style you want).Set the Position — bottom-center is the standard for documents that include a total; bottom-right is the other common choice.
Adjust Font Family, Font Size, and Opacity if you want the number to sit more discreetly on the page.
Click Generate PDF and download.
When "of Y" is worth it
The total earns its keep whenever a document leaves the screen:
- Contracts and legal filings — a missing page is a serious problem, and "of 12" makes it instantly detectable.
- Invoices and statements — recipients can confirm they received everything.
- Anything printed, stapled, or faxed — physical pages get separated; the total is the safety net.
- Documents that get scanned — a scan that dropped a sheet is obvious when the last page says "of 15" but you only have 14.
For a document that only ever lives on screen and is scrolled rather than printed, a plain number is fine — the reader can see the scrollbar.
Common questions
What does the total count — does it include my cover page?
The total reflects the pages in the document. If you've used Start from Page to leave a cover un-numbered, the cover still exists in the file, so be aware that the printed total counts every physical page. If your numbering and your totals need to agree exactly with a reader's mental count, keep the front matter out of the file itself, or accept the offset. Our cover page guide explains how the two "start" settings interact.
Can I put "Page 1 of 10" somewhere other than the bottom?
Yes — you can place it in any of nine positions (top, middle, or bottom × left, centre, or right). Bottom-centre and bottom-right are conventional, but a top-right "Page 1 of 10" is common on letterheads.
Will it fit? "Page 12 of 148" is long.
Longer formats need more room, especially at larger font sizes. If it crowds your content, drop the font size a little, choose the compact 1/10 style, or increase the margin so it sits further from the text.
Can I make the number less intrusive?
Yes — lower the Opacity so it prints as a soft grey rather than solid black, and reduce the Font Size. A subtle "Page 1 of 10" is easy to read but doesn't compete with your content.
Does the total update if I add pages later?
No. The numbers are stamped into the page content at the moment you generate, so they're a snapshot. If you add or remove pages afterwards, re-run the numbering on the updated document — starting from your original un-numbered file.
Wrap-up
- Drop your PDF into Add Page Numbers.
- Set Number Format to Page 1 of 10 (or a compact variant like
1/10). - Position it bottom-centre, tune the size and opacity, and Generate PDF.
Include the total whenever the document will be printed, signed, scanned, or sent somewhere official — it's the cheapest way to make a missing page obvious. For all the other formats and styling options, see the main page numbers guide.