Setting editing preferences
Use
the Editing option of the Preferences dialog box to set editing
options.
Select the options you want to set:
Select
or deselect Enable screen reader support.
When this option
is enabled, Contribute disables offscreen rendering of pages so
that a screen reader can be used.
Select a dictionary from the Spelling dictionary pop-up menu.
To automatically save files at regular intervals, select
Save Contents In The Background, and enter a value for the time
interval.
Click OK.
PDF (adobe.com)
