How to add page numbers to a PDF: numbering the cover page right, N of M formats and starting numbers
Numbered pages make documents easier to reference. Contracts cite clauses by page, courts require numbered filings, supervisors ask for "page 12 of the report", and print shops need numbering to confirm nothing was dropped. Yet many PDFs — especially ones assembled from scans or merged from several sources — arrive with no numbers at all.
This guide explains how the Paperly Add Page Numbers tool works, what each option actually does, and where its honest limits are. The tool runs entirely in your browser: your file is never uploaded, and the numbers are drawn into the pages themselves so they survive printing, sharing and further editing.
Why PDFs often have no page numbers
A PDF is a container of pages, and nothing about the format requires those pages to display numbers. Several common situations produce unnumbered files:
- Merged documents — combining three PDFs keeps each part's original (or missing) numbering, so the result reads like three documents stapled together.
- Scans — a scanner captures the paper as it is. If the original had no printed numbers, the scan has none either.
- Downloaded forms and statements — many web-generated PDFs skip numbering because the producing system counts on viewers to show position.
- Slide-style exports — images exported to PDF carry no text layer, so any numbering must be drawn on top.
Because numbers drawn by the tool become part of the page content, they behave exactly like the rest of the document: they print, they are visible in every viewer, and they cannot be accidentally lost the way viewer overlays can.
How the Paperly Add Page Numbers tool works
- Open the Add Page Numbers tool and upload your PDF (up to 100 MB).
- Pick the position: bottom center, bottom right, top center or top right.
- Set the starting number — the default is 1, but you can begin at any value from 1 to 9999.
- Choose the font size (8 to 28 points) and the format: plain numbers or "N of M".
- Click Process. Every page receives its number, then you download the finished file.
Processing is local: the PDF is parsed and rewritten in your browser tab. No copy of the document travels to a server, which makes the tool safe for contracts, medical records and other confidential material.
Choosing a position
| Position | Typical use |
|---|---|
| Bottom center | Reports, essays, manuscripts — the most conventional choice. |
| Bottom right | Business letters and contracts, where the bottom-right corner is the reading anchor. |
| Top center | Documents with heavy footers, or academic styles that put folios in the header. |
| Top right | Handouts and reference sheets where the footer is already crowded. |
Numbers are drawn a fixed distance inside the page margin, so they stay clear of most content. If a page has text or a stamp exactly where the number lands, the number is drawn over it — check the first and last pages after processing if your document has unusual margins.
Plain numbers versus "N of M"
The format option controls what is printed next to each number. Plain format prints just the counter — 1, 2, 3 — which suits books and manuscripts that follow strict style rules. The "N of M" format prints the current page and the total, like "4 of 27".
- Use "N of M" for filings, tenders and HR packets: it proves at a glance that no page is missing after printing.
- Use plain numbers when the total might change — if you will merge more pages later, "4 of 27" would become wrong, while a plain "4" stays correct.
- Both formats respect your chosen starting number, so a document that begins counting at a cover sheet can read "2" on the first content page if you set the start to 2.
The cover-page problem (honest limits)
The most requested feature this tool does not yet have is skipping the cover page. The current version numbers every page — there is no "start numbering from page 2" toggle. The starting-number option offsets the count, not the pages: setting start to 2 makes the first page read 2, it does not leave the first page blank.
If a blank cover matters, two practical workarounds exist. First, split the cover off with the Split PDF tool, number the body, then merge the cover back with Merge PDF. Second, accept a numbered cover — many organizations do, since the cover is still "page 1" for reference purposes. Neither workaround is elegant, but both are honest ways to get the result with the tools that exist today.
Starting numbers in real workflows
- Appendix numbering: if an appendix is bound after a 42-page report, start its numbering at 43 so page references stay continuous across the binding.
- Resuming a series: when a scanned chapter continues a printed book, set the start to the printed page the scan begins on.
- Legal exhibits: pair a starting number with Bates numbering when documents must carry both sequence styles.
The range is 1 to 9999, which covers even large bound sets. For documents longer than that, split the file into volumes and number each volume with its own range.
Choosing a size and matching your document
Font size is measured in points, and the default of 12 points matches the body text of a typical report. The practical range looks like this:
| Document type | Recommended size |
|---|---|
| Standard report or essay | 12 pt — the default fits most margins |
| Dense legal or academic pages | 10 pt — stays discreet under tight text blocks |
| Large-format or presentation pages | 16–20 pt — keeps numbers legible at distance |
| Scanned records with narrow footers | 8–10 pt — avoids colliding with content |
The smallest available size is 8 points and the largest 28. Because the number is drawn once and becomes permanent, it is worth processing a one-page sample first when a document has unusual margins — the trial costs seconds and saves a re-do.
Troubleshooting
- The number overlaps content — pick another position, or reduce the font size (below 14 points suits dense pages).
- My scanned pages have no margins — scans sometimes fill the whole page. Trim the edge with the Crop PDF tool first, then number the result.
- Password-protected file rejected — unlock the PDF first; the numbering tool reads and rewrites pages, which requires an open document.
- Numbers look small when printed — the size option is in points, so what looks fine on screen at 12 pt is standard print size; increase to 14–16 pt only for large-format pages.
Related tools that pair well
- Add Header & Footer — stamp a title or confidentiality line on every page alongside the numbers.
- Bates Numbering — legal-style sequential identifiers with prefix, suffix and digit padding.
- Merge PDF — combine documents first, then number the whole set in one pass so the sequence is continuous.