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How to Cite a PDF in Chicago Manual of Style

Cite a PDF in Chicago by what it is rather than its format. Treat a report, white paper, or government document by its author or issuing organization, title, publisher, year, and URL, adding PDF as the medium only when it helps the reader.

Citation style Chicago Manual of Style
Source type PDF

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How to cite a pdf in Chicago step by step

  1. Identify the work. Decide whether the PDF is a report, book, article, or government document, since that controls the Chicago pattern, not the file type.
  2. Author or issuer. Use the named author, or the organization that issued the document as a corporate author.
  3. Title. Italicize the title for a standalone report; use quotation marks for a document that is part of a series.
  4. Publisher and year. Give the issuing body or publisher and the publication year.
  5. Link the file. Add the full URL to the PDF, and note PDF as the format where the file type matters.

Chicago pdf citation format

Chicago treats a PDF report as author, title, publisher, year, and URL. The format label PDF is optional and used only when it aids retrieval, which the worked example reflects.

Reference list entry
Adams, Ansel. 1942. The Tetons and the Snake River. In National Archives. https://catalog.archives.gov/id/519904.
In-text citation
(OECD 2023)

Common pdf citation variations

How do I cite a government report PDF in Chicago?

Use the issuing agency as the author, give the report title and any report number, then the publishing body, year, and the URL to the PDF.

Do I need to write PDF in a Chicago citation?

Only when the format helps the reader find the file. If the document is clearly a report at a stable URL, the format label can be omitted.

How do I cite a PDF that is a scanned chapter or article in Chicago?

Cite it as the underlying article or chapter with full publication details. The fact it reached you as a PDF does not change the Chicago pattern.

How do I cite a PDF with no clear author in Chicago?

Use the issuing organization as a corporate author. If none is shown, begin with the document title and keep the rest of the order intact.

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PDF citation FAQ

Is a PDF a separate source type in Chicago?

No. Chicago cites the underlying work, so you choose the report, book, or article pattern and treat PDF only as a delivery format.

Should a report PDF title be italicized in Chicago?

A standalone report title is italicized; a document that forms part of a larger series uses quotation marks instead.