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Free PDF Page Numbers — Add Numbering to PDF

Stamp page numbers on every PDF page — pick position, format, font size, and skip cover pages. Browser-side, free, no upload.

Your file stays private. Numbers are stamped in your browser. The PDF is never uploaded.

What is this calculator for?

A court rules that all exhibits attached to a deposition must be paginated for the court reporter's reference. A grant application requires every page to bear "Page X of N" so reviewers can confirm completeness. A book draft heading to the printer needs sequential numbering, with the title and copyright pages unnumbered. An HR policy manual's 47 pages need numbers in the bottom-right corner so employees can cite a specific section by page. PDF page numbering is one of those formatting requirements that most people don't think about until a deadline reveals that the file doesn't have them — and then it becomes urgent.

This tool stamps page numbers onto every page of a PDF using pdf-lib's drawText. You pick the position (one of six corner/edge slots), the format (just a number, "Page N," "N of total," or "Page N of total"), the font size, and which page numbering should start from. The result is a PDF where the numbers appear baked into the page content — visible to every viewer, printed when the document prints, and indexed correctly when copied or searched.

Microsoft Word, Google Docs, and LaTeX all add page numbers automatically when you ask. The headache appears when the PDF was generated by something else — a scanner, an export from a non-Office app, a combination of merged sources — and the numbering didn't carry through. Rather than rebuild the document in Word and re-export, this tool patches the existing PDF in about ten seconds.

How to use this calculator

Step 1: upload your PDF. Pick the file. The tool reads the page count, which becomes the "of N" in the formats that use it.

Step 2: pick the position. Six options arranged as a 3×2 grid: top-left, top-center, top-right, bottom-left, bottom-center, bottom-right. The most common choice for business documents is bottom-center; legal filings often use top-right; manuscripts and books typically use top-outer (right on odd pages, left on evens — this tool doesn't support that pattern, only fixed positions). All positions are 0.5 inch from the page edge, which sits inside the safe margins of standard US Letter and A4 documents.

Step 3: pick the format. Just the number ("7") works when the document already has a heading or footer that contextualizes it. "Page 7" adds the word for clarity in formal documents. "7 of 24" tells readers how much is left. "Page 7 of 24" is the most explicit — common in long reports and reference documents.

Step 4: optional — pick a start page. Leaving the default (1) numbers every page from the front. Setting "start at" to 2 means page 1 stays blank (no number rendered) and page 2 gets the visible number "1" — useful for skipping a cover page or title page from the numbering sequence.

Step 5: stamp and download. Click add page numbers. The tool draws the text on each target page and saves. Download the result.

Understanding your results

The output PDF has page numbers visible in the corner you chose, on every page from your start-page onward, in the format you picked. The numbers are drawn in mid-gray (RGB 77,77,77) rather than pure black — soft enough to feel like proper page numbering, dark enough to read clearly on both screen and paper. The font is Helvetica, embedded as a PDF standard font so the result renders consistently in every PDF viewer.

If you started numbering at a later page (say page 3), the visible numbers re-base to "1" at your start page — so page 3 of the source shows "Page 1," page 4 shows "Page 2," and so on. The "of N" total reflects the count from your start page onward, not the full page count of the source. So a 24-page document starting numbering at page 3 will show "Page 1 of 22" through "Page 22 of 22."

What the tool doesn't do (yet): change number format between Arabic and Roman, number even/odd pages differently, add a chapter prefix ("Chapter 3, Page 1"). These are all possible with pdf-lib's drawing API but require more configuration than this tool exposes. For complex numbering schemes, build the document in Microsoft Word or LaTeX where these are first-class features, and skip the post-hoc patching.

Existing content on the page is unchanged — the numbers are drawn on top of whatever's there. If your source PDF has tight margins (less than 0.5 inch), the numbers may overlap existing text or page borders. The fix is either to switch to a different position (a different corner) or use a smaller font size (10pt instead of 12pt). The tool doesn't enforce a "safe zone" because some document templates (Asian formats, brochures with bleeds) intentionally use the area where the tool stamps numbers.

A worked example

Aisha is a paralegal at a mid-sized litigation boutique. The firm files depositions weekly during active discovery phases. Each deposition packet is a combined PDF — the transcript first (60-120 pages), followed by exhibits (anywhere from 20 to 80 additional pages). The total runs 80 to 200 pages per packet, and the court requires sequential pagination on every page so the court reporter and opposing counsel can cite "Bates page 47" without ambiguity.

The transcripts arrive from the court reporter pre-paginated, but the exhibits come from clients in whatever shape they were given — sometimes pre-paginated, often not. When she combines transcript + exhibits using PDF Merge, the pagination of the combined file is inconsistent: the transcript reads "1, 2, 3..." matching its original pages, then the exhibits start at "1" again, then maybe page 32 has an unrelated pre-printed number, etc.

The old workflow: re-paginate the entire combined PDF in Adobe Acrobat Pro using Document → Header & Footer, which works but takes about three minutes per filing including positioning tweaks. Across maybe four filings a week, that's 12 minutes of repetitive work plus the Acrobat license cost.

The new workflow: combine transcript and exhibits in PDF Merge. Upload the combined file to PDF Page Numbers. Pick top-right (the firm's standard placement for deposition packets), format "Page N of M," font size 10pt, start at page 1. Click stamp. Save. Total time per filing: 20 seconds. The output reads "Page 1 of 147," "Page 2 of 147," etc., consistently from front to back regardless of what numbering the source PDFs may have had. She files the packet with the court the same morning she receives the exhibits.

Variation: a self-publishing author named Devon is sending the manuscript of her novel to a Print On Demand service. The service requires "Page X" stamped on every page, except the title page and copyright page (pages 1 and 2 of the file). She uploads her manuscript PDF, picks bottom-center, format "Page N," start-at page 3. The title and copyright pages stay blank; the body pages start numbering with "Page 1" on what is physically page 3 of the file — matching the publishing industry's convention of starting numbering at the first body page.

Related resources

If you need to add a "DRAFT" stamp alongside the numbers, see PDF Watermark. After numbering you may want to reorganize the document; use PDF Reorder Pages for that. To trim a numbered document down to specific pages, PDF Split handles range and per-page extraction. To combine a numbered document with other PDFs, PDF Merge stitches them together.

Frequently Asked Questions

Can I skip the cover page?

Yes. The "Start numbering at page" field lets you skip any leading pages — set it to 2 to leave page 1 (cover) blank and start the visible numbering on page 2. The numbers themselves re-base, so the first numbered page reads "1" not "2." Useful for reports with a title page, court filings with a caption sheet, or theses with front matter.

What number formats can I use?

Four options: just the number ("7"), labeled ("Page 7"), with total ("7 of 24"), and both ("Page 7 of 24"). The labeled-with-total format is the most common for professional documents because it tells the reader where they are AND how much is left. Bare numbers fit best when the document already has a header.

Will the numbers overlap existing text on the page?

They could, if the source PDF's margins are unusually tight. The tool places numbers 0.5 inch from the page edge — that fits inside the safe margins of US Letter and A4 documents at default Word/Google Docs settings. If you see overlap, the underlying document has slim margins; consider using a top-corner placement instead of the centered footer, or shrinking the font size to 10pt.

What font is used?

Helvetica, embedded as a PDF standard font so the output renders consistently in every viewer. The color is mid-gray (RGB 77,77,77) rather than pure black — soft enough to feel like proper page numbering, dark enough to read on paper.

Can I number pages with Roman numerals (i, ii, iii)?

Not in this tool — it uses Arabic numerals (1, 2, 3) only. Roman numerals on front matter is a publishing-specific convention; Microsoft Word's page numbering supports it, as does Adobe Acrobat Pro's Header & Footer feature. If you need Roman numerals on the front matter and Arabic on the body, set up the document in Word, export to PDF, and skip this tool.

Does this work if the PDF already has page numbers printed?

Yes — but you'll have two sets of numbers visible on each page, which looks unprofessional. If the source already has visible numbers, use this tool only when you want to ADD a different format (e.g., the original has just "1" and you want to add "Page 1 of 24" elsewhere). Otherwise, remove the originals first using a desktop PDF editor.

Can I use different positions on odd vs even pages?

Not in this tool — positioning is uniform across all pages. Mirror-pattern numbering (outer corner on odd, opposite outer corner on even, used in printed books for two-sided spreads) requires a layout system that knows about left/right pages. Microsoft Word does this via 'Different Odd & Even Pages' in Header & Footer settings. For PDFs prepared specifically for two-sided printing, do the numbering in the source layout app; for everything else (screen-read PDFs, business documents), uniform positioning is the right choice anyway.

What if my PDF mixes Letter and A4 pages?

Each page is measured individually, so the number stays 0.5 inch from the edge regardless of page size. A Letter page and an A4 page in the same document will both have correctly-positioned numbers. The page-size variation is invisible in the output — what matters to readers is that the number is in the corner where they expect it.

Can I change the color of the numbers?

Not in this tool — the color is fixed at mid-gray. Gray was chosen because it blends with document design (matches the visual weight of body text but doesn't compete with it) and reproduces well in print. If you specifically need black, blue, red, or a corporate color, you'd need to edit the PDF in a dedicated tool like Adobe Acrobat Pro's Header & Footer feature, which lets you pick any color.

What happens if I run the tool twice on the same PDF?

Both sets of numbers will appear. The tool draws on top of existing content; it doesn't detect that there's already a number there. If you accidentally double-number a document, the fix is to start over from the source PDF (the one without any numbers). Always keep the original; the numbered version is a derivative.

Will the numbers print in the right place on actual paper?

Yes — the 0.5 inch margin from the page edge is well within the printable area of every consumer and office printer. The exception is borderless printing (uncommon for documents, more common for photos), which extends content to the page edge and crops the standard margins. For document-style printing, the numbers will appear exactly as they look on screen.

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