I ve heard that adding security to Adobe PDF files makes them inaccessible. Is that true?
Acrobat 6.0 offers 40-bit and 128-bit encryption for documents. The default settings for both these levels allow for accessibility. However, 128-bit encryption provides a specific option that allows authors to prevent users from copying and pasting text while also ensuring that the document is accessible to those who depend on assistive technology, such as MSAA-compliant screen readers. With 40-bit encryption, if the author doesn’t allow content copying and extraction in Acrobat 5.0, the file is inaccessible. In Acrobat 6.0, Adobe worked with assistive technology partners to develop a solution that enables future releases of screen readers to read 40-bit encrypted files while preserving copy permissions.
