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pdf100% Browser-BasedUpdated Jul 2026

Add Page Numbers to PDF

A premium, privacy-first PDF page numbering tool that works entirely in your browser. Upload any PDF and add beautiful page numbers with full control over starting number, numbering format (numeric, Roman numerals, alphabetic), position (6 presets), font family, size, color, opacity, and rotation. Apply to all pages, specific ranges, odd/even pages, or skip the first/last page. Advanced options include mirror margins for book-style layouts, different first page, and restart numbering. See every change instantly in the live preview — all processing happens locally, your files never leave your device.

Your Files Never Leave Your Device

All PDF page numbering happens entirely in your browser. Your files are never uploaded to any server.

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Frequently Asked Questions

Everything you need to know about adding page numbers to PDFs

How does browser-based PDF page numbering work?
PDF page numbering happens entirely in your browser using JavaScript. When you upload a PDF, we render a preview using pdf.js for the live editor. When you apply page numbers, pdf-lib draws the numbers onto each page as text objects within the PDF file structure. No data is ever sent to any server — your files remain on your device at all times.
Can I choose where page numbers appear?
Yes. You can place page numbers in 6 positions: Top Left, Top Center, Top Right, Bottom Left, Bottom Center, or Bottom Right. Advanced options let you mirror margins for book-style layouts (alternating left/right positions on odd/even pages), use a different first page, or set different positions for odd and even pages.
What numbering formats are supported?
You can choose from three numbering formats: Standard Arabic numerals (1, 2, 3...), lowercase Roman numerals (i, ii, iii...), or lowercase alphabetic (a, b, c...). You can also add custom prefixes (e.g. 'Page ') and suffixes (e.g. ' - Draft', ' - Confidential').
Can I apply page numbers to specific pages only?
Absolutely. You can apply page numbers to All Pages, First Page Only, Last Page Only, Odd Pages Only, Even Pages Only, or a Custom Page Range (e.g., 1-5, 8, 11-13). You can also skip the first page, skip the last page, or restart numbering for different sections.
Can I customize the font and appearance of page numbers?
Yes. You have full control over the appearance: choose from 6 font families (Helvetica, Helvetica Bold, Times Roman, Times Bold, Courier, Courier Bold), adjust font size (6-72pt), toggle bold, change color using a color picker, set opacity (0-100%), rotation (-180° to 180°), and letter spacing.
What starting number can I use?
You can start numbering from any number you like (1, 5, 10, 100, or any custom value). This is useful when combining multiple PDFs or when you need numbering to start from a specific page. Presets for common starting numbers (1, 5, 10, 100) are provided for convenience.
Does adding page numbers affect PDF quality?
No. The original PDF content remains completely unchanged — page numbers are drawn on top of the existing content with zero compression or quality loss. Text, images, fonts, and formatting are preserved exactly as they were in the original document. The only addition is the page number text objects.
What are mirror margins and when should I use them?
Mirror margins alternate the page number position on odd and even pages — left on even pages, right on odd pages (or vice versa). This is essential for book-style documents where pages are printed on both sides. When the document is bound, mirror margins ensure page numbers appear on the outer edges of each spread.
Can I restart numbering in the middle of a document?
Yes. The 'Restart Numbering' option allows you to specify a page where numbering restarts from a chosen value. This is useful when combining separate documents, starting a new chapter, or when the cover page should not affect the numbering sequence.
How is ForgePlug's PDF page numbering tool different from others?
Our tool features a live preview that updates instantly as you adjust every setting — no waiting for renders. Combined with 6 position presets, mirror margins for book layouts, Roman numerals and alphabetic formats, custom prefixes/suffixes, quick presets for common styles (Academic, Book, Legal, Business, Presentation, Minimal), full font controls, and a premium interface inspired by Adobe Acrobat and professional desktop publishing tools. Plus, your files never leave your device.

About Adding Page Numbers to PDFs

A complete guide to adding page numbers to PDFs.

What Are PDF Page Numbers?

Page numbers are text markers placed on document pages that indicate the sequential order or position within a document. They are essential for navigation, citation, and professional document presentation. Page numbers can appear in various formats (Arabic numerals, Roman numerals, alphabetic), positions (top or bottom, left, center, or right), and styles (font, size, color, opacity). In PDF publishing, page numbers help readers reference specific sections, create table of contents entries, and navigate multi-page documents efficiently.

Best Practices for PDF Page Numbering

For professional documents, follow these best practices: Use bottom-center or bottom-right positioning for standard documents — this is the most familiar placement for readers. For academic papers (APA, MLA, Chicago style), use top-right with Arabic numerals starting from page 1. For books and bound documents, enable mirror margins so page numbers alternate between left and right sides on facing pages. Use Roman numerals (i, ii, iii) for front matter (table of contents, preface) and Arabic numerals for the main content. Keep font size between 9-12pt for readability. Use a font that matches or complements your document's body text.

Numbering Formats for Different Documents

Different document types call for different numbering styles. Academic papers typically use Arabic numerals in the top-right corner (APA style) or bottom-center (MLA style). Books use Arabic numerals for body pages with mirror margins for facing pages, often with Roman numerals for front matter. Legal documents use bold Arabic numerals centered at the bottom of each page. Business reports use Arabic numerals with prefixes like 'Page ' at the bottom-right. Presentations use small, subtle numbers at the bottom-right to avoid distraction. Choose a format that matches your document's purpose and professional standards.

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