Document Length and Structure

Extensive sections, chapters, and nested sub-sections.
Complex tables of contents or indices

Tables and Forms

Complex tables (multiple columns/rows, merged cells, or nested tables)
Interactive forms that require tagging for accessibility (form fields, labels, etc.).

Images and Graphics

Volume and type of visual elements (charts, graphs, infographics) which mayrequire detailed alt-text or data tables for screen reader compatibility.

Annotations and Footnotes

Documents with a high volume of annotations, footnotes, or endnotes which need tagging or linking for accessibility.

Mathematical Notations and Equations

Equations needing tagging for screen reader support.
LaTeX or complex math notations.

Language and Multilingual Content

Documents in multiple languages requiring language tagging.
Right-to-left languages or special character sets increase complexity.

Document Interactivity

Hyperlinks, bookmarks, and internal document navigation.
Higher interactivity or custom navigation elements add complexity.

Embedded Multimedia

Audio, video, or animations require captions, transcripts, or descriptions for accessibility.

Compliance Level Required

If specific standards (e.g., WCAG 2.1 AA, PDF/UA) need to be met, higher compliance levels often increase workload.