Diagnose image-only scans, broken reading order and untagged content that screen readers cannot interpret correctly.
- Visible letters are not always readable text: Text that looks visible is not always encoded as readable text.
- How to separate OCR problems from tag problems: Running OCR solves image-only text, but it does not automatically create headings, lists, table headers or a logical reading order.
- What to verify after the text becomes selectable: Copy a sentence, inspect the extracted order and listen to the repaired page.
Use these checks before completing Why Screen Readers Skip Text in Some PDFs.
Visible letters are not always readable text
Text that looks visible is not always encoded as readable text. It may be a page image, outlined artwork or content placed outside a usable tag tree.
Running OCR solves image-only text, but it does not automatically create headings, lists, table headers or a logical reading order.
Decision table for Why Screen Readers Skip Text in Some PDFs
| Checkpoint | What to verify |
|---|---|
| Visible letters are not always readable text | Text that looks visible is not always encoded as readable text. |
| How to separate OCR problems from tag problems | Running OCR solves image-only text, but it does not automatically create headings, lists, table headers or a logical reading order. |
| What to verify after the text becomes selectable | Copy a sentence, inspect the extracted order and listen to the repaired page. |
How to separate OCR problems from tag problems
- Try selecting and copying a sentence from the page.
- Run OCR when the page behaves like one picture.
- Inspect headings, lists, tables and reading order after OCR.
- Use the accessibility checker again on the repaired copy.
Workflow graph for Why Screen Readers Skip Text in Some PDFs
What to verify after the text becomes selectable
Copy a sentence, inspect the extracted order and listen to the repaired page. Correct words are not enough if columns, captions or table cells are announced in the wrong sequence.
Review form for Why Screen Readers Skip Text in Some PDFs
Tools to put “Why Screen Readers Skip Text in Some PDFs” into practice
First turn image-only pages into searchable PDF text. Then check the repaired PDF for accessibility barriers and compare the findings with the guide to what screen readers need from a PDF.
Keep reading after Why Screen Readers Skip Text in Some PDFs
After completing the checks for Why Screen Readers Skip Text in Some PDFs, continue with PDF accessibility checklist for the related PDFBEAR workflow. Check the accessibility outcomes behind this workflow against the W3C WCAG 2.2 Recommendation.
Why does OCR not make a PDF fully accessible?
OCR recognizes characters. It does not reliably create the heading hierarchy, list semantics, table headers, alternative text or reading order required for an accessible document.
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