Acrobat 9 Pro V9.3.4
Win7Pro x64
The Attachment Icon (Staple) gives no indication whether there is or is not an attachment. The Attachment Icon (Staple) for no attachments should look different than the Attachment Icon (Staple) when there are attachments. If the Attachment panel is not showing, you have no way of knowing if it has an attachment or is empty. Hopefully, you will add this feature in an update (patch) rather than wait for an upgrade. Thanks.