This did not happen when we upgraded microsoft. Nothing was changed on the computer regarding software. I have even reinstalled the Quickboojks software to try and resolve. it will not allow me to attach pdf to bills or invoices unless i drag the pdf twice. 

I have went through quickbooks technical help also. Not sure if its an adobe problem. but for my finance department it is very frustrating because of the amount of billing they need to process. 

Please advise. any solution would be helpful.