Give every PDF a real document title
A PDF needs a real title in its document properties, and it needs to be told to show that title instead of the filename. Both halves are required, and the second is the one people forget. The Title entry lives in the document information dictionary, and a DisplayDocTitle flag in the viewer preferences has to be set to true or the window still shows the file name. In Acrobat Pro that is the Title field under File, Properties, Description, and the Document Title option under Initial View. W3C publishes PDF18 as a sufficient technique when the title itself is descriptive, and it is one of only two techniques W3C documents anywhere for attaching a title to a page. The other is the HTML title element.
How we find it in an audit
We open the PDF and check what the window and the screen reader announce, because a filename like "final_v7_CLEAN.pdf" fails on sight. Then we confirm the Title entry in document properties and check the Initial View tab is set to display it. A file with a perfect title and the flag left off behaves exactly like a file with no title at all.
How affected users experience it
The title is the first thing announced and the label that distinguishes ten open documents. When it is a filename, a screen reader user juggling three loan documents hears "doc_scan_0043", "doc_scan_0044", "final_final2", and has to open and read each one just to tell them apart.
Passes vs. fails
Passes
Document properties set the title to "Smith v. Ardent Corp, Motion to Dismiss, 12 May 2026" and Initial View is set to show the document title. That is what is announced on open.
Fails
A court filing circulates as "Merged_output (3).pdf" with no Title entry. Every window, tab, and screen reader announcement uses that string.
How this gets tested
The W3C publishes test rules that define what a checker looks for here.
- HTML page has non-empty titleA tool can check this
- HTML page title is descriptiveA tool can check this
Other ways to satisfy this rule
5 guides on this site are filed under 2.4.2 Page Titled. W3C lists this one as sufficient for that rule only alongside G88, so the pair is what passes and neither half does on its own.
This guide is our interpretation of W3C technique PDF18: Specifying the document title using the Title entry in the document information dictionary of a PDF document. W3C publishes its techniques as guidance rather than as the standard, and says so on every one of them. The success criterion is what conformance is measured against, and a technique is one documented way to meet it.