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Set Reader to deliver only the currently visible page so that it analyzes only a small piece of the document at a time. This process can take a long time for a long document. If a PDF isn’t tagged, Reader analyzes the document and attempt to infer its structure and reading order. Page vs Document: This preference determines how much of a document is delivered to a screen reader at a time.Use this preference only when you encounter problems in poorly tagged PDFs. This preference corresponds to the Override The Reading Order In Tagged Documents option in the Accessibility Setup Assistant. Override The Reading Order In Tagged Documents: Uses the reading order specified in the Reading preferences instead of what the tag structure of the document specifies.This method analyzes text only form fields are ignored and tables aren’t recognized as such. This method is faster than Infer Reading Order From Document. Use Reading Order In Raw Print Stream: Delivers text in the order in which it was recorded in the print stream.Left-To-Right, Top-To-Bottom Reading Order: Delivers the text according to its placement on the page, reading from left to right and then top to bottom.Infer Reading Order From Document (Recommended): Interprets the reading order of untagged documents by using an advanced method of structure inference layout analysis.

Reading Order: Specifies the reading order of documents. The reading order preferences also appear in the Accessibility Setup Assistant.

Files mode provides a better reading experience for people with disabilities, such as mobility impairments, blindness, and low vision. Show Portfolios In Files Mode: When selected, shows PDF Portfolio component files and file details in a list.Always Use The System Selection Color: When selected, the default selection color (blue) is overridden with a color that the system specifies.Always Display The Keyboard Selection Cursor: Select this option if you use a screen magnifier. This preference corresponds to Always Display The Keyboard Selection Cursor option in the Accessibility Setup Assistant.Use Document Structure For Tab Order When No Explicit Tab Order Is Specified: Improves navigation of form fields and links in documents that don’t specify a tab order.