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PDF image with null alt="" Screen reader compatibility

Last updated: January 7, 2020

Expected Result: causes problems in some screen readers

Actual Result: causes problems in 12 screen reader / browser combinations

For expected failures, the results show which AT combos the failures affect. Results are recorded from the user's viewpoint, so describe the user impact of authoring errors.

Code used for this test:

SR_PDF_alt_text.pdf
            <a href='SR_PDF_null_alt_text.pdf'>PDF</a>
    

Change History

Last updated: January 7, 2020

Screen readerBrowserModeNotesWhat the user hears

Test notes

All tests were carried out with screen reader factory settings. JAWS in particular has a wide variety of settings controlling exactly what gets spoken.

Screen readers allow users to interact in different modes, and can produce very different results in each mode. The modes used in these tests are:

In the «What the user hears» column: