This video covers what PDF remediation for accessibility involves and why untagged or poorly structured documents create problems for people who use assistive technology.
PDF remediation is the process of modifying a PDF so it meets Web Content Accessibility Guidelines (WCAG) conformance requirements. Most PDFs created from design software, scanned pages, or basic exports lack the underlying structure that screen readers need to interpret content correctly.
The core of remediation involves adding tags to every element in the document. Tags tell assistive technology what each piece of content is: a heading, a paragraph, a list item, a table cell, or a decorative image. Without tags, a screen reader reads the document as a flat stream of text with no context.
Reading order is another major part of the process. A PDF may look correct visually but present content in the wrong sequence to someone using a screen reader. Remediation corrects the logical reading order so the content flows as intended.
Tables, forms, and images each require specific attention. Tables need header cell associations. Form fields need labels. Images need alternative text or need to be marked as decorative.
Each of these corrections is done manually within the document’s tag structure.
PDF remediation is detailed, page-by-page work. The complexity depends on the document’s length, layout, and how many content types it contains.