Accessibility
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By default, the PDF documents produced using this plugin are partially accessible in the sense that most of the paragraphs, tables, lists, headers, and footers are tagged automatically so a PDF reader can use this information to present the content.

Accessibility - Built-in CSS
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Accessibility properties are defined in [PLUGIN_DIR]css/print/p-accessibility.css.

How to Create Fully Accessible Documents
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To make your documents fully accessible (PDF/UA1), do the following:
  1. In your customization CSS, specify fonts for all elements and for all page margin boxes. There should be no text that falls back to the basic provided fonts (Times, Courier, etc.). For instance, you can use:
    :root { font-family: Arial }
@page {
    @top-left {font-family: Arial }
    ...
}
  2. Specify an @alt attribute with a description on any image, or better, use the <alt> DITA element.
  3. Change the Chemistry invocation from the build.xml file, adding the argument -pdf-ua. There are two targets to change: chemistry and chemistry.embedded.