Start with the right PDF

Read the cover, first page, running header, and document properties for a title, responsible organization, report number, date, DOI, or ISBN.

Prefer the publisher’s landing page or repository record over a raw .pdf address. The landing page often exposes cleaner metadata and a more stable URL.

Classify the work before formatting it. A downloaded journal article remains a journal article; an agency guideline is usually a report or web publication; a scanned book remains a book.

How AMA treats this source

Searching for a “PDF citation” often starts with the file extension, but AMA describes works rather than download formats. Two PDFs can require completely different references: one may have journal volume and pages, while another needs a corporate author, report title, publisher, year, and report number.

A direct PDF URL can hide the document title behind a filename and may disappear when a site reorganizes its files. A DOI or publication landing page is normally easier for readers to resolve. If only the PDF is available, record the information printed inside it and retain the most stable public address you can verify.

Reports and guidelines often use an organization as author and publisher. Do not duplicate or delete the organization mechanically; follow the rule set and the exact source roles. Publication dates also need care: the date in a filename, the browser’s download date, and the report’s stated publication date are not equivalent.

Fields to verify before copying

Automatic metadata is useful, but it is not a substitute for the source. Compare these fields with the item you actually read.

Field	What to check
Underlying type	Journal article, report, book, chapter, thesis, guideline, or another identifiable work.
Responsibility	Named authors, editors, government body, association, or other issuing organization.
Title and series	Full document title plus edition, report number, or series when present.
Publication details	Publisher or issuing body, stated publication date, and journal details if it is an article.
Location	DOI first when available; otherwise a stable landing-page URL and any required access date.

Worked AMA example

Source being cited: A 2017 National Academies report, The Health Effects of Cannabis and Cannabinoids, published by the National Academies Press, DOI 10.17226/24625.
Reference-list entry: 1. National Academies of Sciences, Engineering, and Medicine. The Health Effects of Cannabis and Cannabinoids: The Current State of Evidence and Recommendations for Research. National Academies Press; 2017. doi:10.17226/24625
In-text use: The report is linked to superscript reference 1: ¹

The work may be read as a PDF, but the reference describes the report and uses its DOI rather than labeling the source “PDF.”

A reliable workflow

1Identify the underlying PDF and collect the most stable identifier available.
2Generate the reference, then compare every imported field with the publisher record or the source itself.
3Place the source in the reference list according to the order in which it first appears in your writing.
4Use that assigned number again whenever you cite the same work; do not create a new reference-list entry.
5Check the final manuscript against the current instructions from your course, journal, or publisher.

Common mistakes to catch

Writing “PDF” as the source type

Identify what the document is. The file format does not replace article, report, book, or chapter metadata.

Citing only the filename

A filename is not a title and rarely gives readers enough information to locate or evaluate the work.

Using the download date as publication date

Take the publication or revision date from the document or its official record. Access date is a separate element.

Preferring a fragile file URL over a DOI

Use the persistent identifier or official landing page when available, while still checking the underlying document details.