Getting Page Numbers and Headers Right in a Long PDF
Published
Long documents — reports, theses, compiled proposals — often need page numbers that don't simply start at 1 on the very first page. A common convention is to number a cover page and table of contents separately (often with roman numerals, or no visible number at all) and start the main numbering sequence from the first real content page.
When a document is assembled by merging several separate PDFs together, it's important to add page numbers after merging, not before. Numbering each source file individually before merging means every file restarts at page 1, which produces a merged document with several separate '1, 2, 3...' sequences instead of one continuous count — confusing for anyone trying to reference 'page 42' in the final document.
Headers and footers work well for repeating context that isn't about page position at all — a document title, a confidentiality notice, a client name — content that should appear consistently on every page without being part of the main content flow. Keeping this distinct from page numbering makes documents easier to update later, since you're not tangling static labels with a numbering sequence that shifts if pages are added or removed.