What is Reading Order?
The logical sequence in which page content should be consumed — critical for screen readers, OCR output, and PDF-to-Word conversion.
PDFs store text positionally, not sequentially. Reading order is the metadata (in tags or inferred by an algorithm) that tells software which paragraph follows which, especially in multi-column layouts. Bad reading order is the #1 reason PDF-to-Word output looks scrambled.
Related terms
- Tagged PDF — A tagged PDF carries a hidden structure tree (headings, paragraphs, lists, tables) that screen readers and automation tools use to understand reading order.
- OCR (Optical Character Recognition) — OCR is the technology that converts text inside an image or scanned PDF into machine-readable, searchable, editable text.
Category: Accessibility