How to Cite a PDF in Chicago
Updated September 2026
Citing a pdf in Chicago comes down to one template and a handful of rules. Below: the exact 18th edition format, a real example produced by our citation engine, and the in-text form — or paste your source into the generator on this page and copy the finished citation.
The Chicago format
Author Last, First. “Title of the Page.” Site Name. Month Day, Year. URL.
Chicago (18th edition) formats a PDF reference as shown above. A real example, generated by our citation engine:
Centers for Disease Control and Prevention. CDC Global: A Year of Action and Impact: 2024 Annual Report. Centers for Disease Control and Prevention, 2025. https://stacks.cdc.gov/view/cdc/258498.
In-text(Centers for Disease Control and Prevention 2025)
Cite a pdf in Chicago — free
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Citation style
The Chicago Manual of Style, 18th edition (2024), notes and bibliography. The 18th dropped the place of publication that the 17th required.
Finding the pieces
Or skip the hunt: Identify what the PDF is first — then paste its DOI (articles) or landing-page URL (reports) into the generator. It works out what the source is, fills every field from the source's own record, and is already set to Chicago.
- What it is — a journal name + volume means article; an issuing org means report; a copyright page means book
- DOI — first-page header/footer of published articles
- The landing page — cite the page where the PDF is offered, not your downloaded copy
- Real page numbers — printed on the pages, ideal for quote locators
Chicago's formatting rules at work
- First author inverted, additional authors in natural order
- Titles use Title Case; articles in quotes, containers in italics
- Reads like prose: the year sits in parentheses before the page range for articles
- Pairs with footnotes — the same data in sentence form with commas
PDF-specific pitfalls
- You never cite "a PDF" — PDF is a file format; cite the work inside it as its actual type
- No [PDF] label appears in any current style
- Scanned books and course-pack PDFs are cited as the original print work
In-text citations in Chicago
Chicago's notes-bibliography system cites with footnotes: a superscript number in the text pointing to a note with the source details and page. The bibliography entry shown here contains everything the footnote needs — un-invert the author's name and swap most periods for commas to form the note.
No author? The note and bibliography entry begin with the title; alphabetize by it (ignoring A/An/The).
Building the Bibliography
Every in-text citation pairs with a full entry on the Bibliography page, alphabetized by author. Add each citation to your bibliography as you generate it, and the Bibliography Builder assembles and exports the finished page to Word with the title, ordering, and indentation Chicago requires.
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Go Premium — $5/monthFrequently asked questions
- What's the basic Chicago format for a pdf?
- Author Last, First. “Title of the Page.” Site Name. Month Day, Year. URL. — see the worked example above, generated by the same engine that powers the free citation tool.
- Do I write [PDF] in the citation?
- No — current styles don't mark file formats for standard documents. Cite the work as what it is: article, report, or book.
- How do I cite a pdf in Chicago in-text?
- With a footnote: a superscript number pointing to a note with the source details and the specific page.
- Can I get this citation in other styles too?
- Yes — every result in the generator renders APA, MLA, Chicago, Harvard, and IEEE simultaneously. Generate once, switch styles with one click.