Alternate Text Support for Graphics
You can provide alternate text for graphics included in HTML and tagged PDF outputs. This is one way of making PDF and HTML content more accessible. Screen readers will read the alternate text supplied for a graphic to provide information or context when the graphic can’t been accessed by the end user of content.
If you have set your stylesheet to output HTML or tagged PDF outputs, you may use the following techniques to include alternate text for graphics in those outputs. Use the fields in the HTML tag and PDF tags categories for elements, contexts, and conditions, or property sets, to configure alternate text.
The following notes apply when configuring alternate text for graphics:
• PDF: publishing of tagged PDF is only permitted when working with the PTC ALD engine. You can assign alternate text for document graphics, or graphics in generated text. You can not provide alternate text for page region graphics.
• HTML: You can assign alternate text for document graphics, or graphics in generated text.