https://helpx.adobe.com/acrobat/kb/k...xi-reader.html Known issues | Acrobat XI, Reader XI https://helpx.adobe.com/acrobat/kb/k...xi-reader.html https://helpx.adobe.com/acrobat/kb/k...xi-reader.html https://helpx.adobe.com/acrobat/kb/k...xi-reader.html https://helpx.adobe.com/acrobat/kb/k...xi-reader.html https://helpx.adobe.com/acrobat/kb/k...xi-reader.html https://helpx.adobe.com/acrobat/kb/k...xi-reader.html https://helpx.adobe.com/acrobat/kb/k...xi-reader.html https://helpx.adobe.com/acrobat/kb/k...xi-reader.html