How to review PDF reading order
Text extraction order is not proof of screen-reader reading order. PDF structure tags, text content order and the viewer can affect the reading experience.
Start with a simple page, then test a multi-column page, a table and any form. Listen to the full reading sequence and check keyboard focus separately.
Compare what you hear with the intended meaning. Watch for footnotes inserted mid-sentence, unrelated columns interleaved and form labels separated from their controls.
Fix the source or use a PDF remediation editor. Export a new version and repeat the checks. Use text comparison to find content changes, then do the visual and assistive-technology review again.
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