How to Cite a PDF
Here's the secret: you never cite "a PDF." PDF is a file format — what you cite is the work inside it: a journal article, a government report, a book chapter, a white paper. Identify what the document is, and cite it as that.
This guide shows how to identify the work, find its identifiers, and cite the three most common PDF types.
Step 1: identify what the PDF actually is
- Journal article — has a journal name, volume/issue, and usually a DOI on the first page. Cite as a journal article.
- Report or white paper — has an issuing organization and often a report number. Cite as a report (website/organization pattern).
- Book or chapter — has a copyright page or chapter/section structure. Cite as a book.
- Government document — agency as author, often a series number. Cite as a report with the agency as author.
Step 2: find the identifier
Check the PDF's first page header/footer for a DOI (10.xxxx/…) — most published articles have one, and pasting it into the generator builds the citation from the publisher's record. Books show an ISBN on the copyright page. Reports usually have a stable URL on the issuing organization's site — cite that page, not your downloaded copy's file path.
The three common cases, cited
Notice the PDF-ness never appears: no "[PDF]" label, no file name. APA only marks format for unusual media; a standard article or report needs nothing.
Rasch, B., & Born, J. (2013). About sleep's role in memory. Physiological Reviews, 93(2), 681-766. https://doi.org/10.1152/physrev.00032.2012
National Sleep Foundation. (2024). Sleep in America poll: Sleep and mental health. National Sleep Foundation. https://www.thensf.org/sleep-in-america-poll-2024
National Sleep Foundation. "Sleep in America poll: Sleep and mental health." National Sleep Foundation, 2024, https://www.thensf.org/sleep-in-america-poll-2024. Accessed 1 June 2026.
Page numbers: the PDF advantage
PDFs preserve real page numbers — use them for quotes: (Rasch & Born, 2013, p. 685) in APA, (Rasch and Born 685) in MLA. Use the printed page number on the page, not your PDF reader's "page 3 of 12" counter, which includes covers and front matter.
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Go Premium — $5/monthFrequently asked questions
- Do I write [PDF] in the citation?
- No, in every major current style. Cite the work as its actual type; the file format is irrelevant. (APA 6 sometimes marked formats — that's obsolete.)
- How do I cite a PDF someone emailed me?
- Find the published version — search the title plus DOI. If it was never published (internal documents), APA treats it as an unpublished work or personal communication; ask your instructor how they want it handled.
- The PDF link is a direct download — which URL do I cite?
- The landing page where the PDF is offered is more durable, and either is acceptable in most styles. Avoid URLs with session tokens or your university's proxy domain.
- What about scanned books or course-pack PDFs?
- Cite the original book or chapter — author, title, publisher, year — exactly as if you held the print copy. The scan is just your access method.