Okay, I misread it as Virtual desktop through Citrix.
For Citrix Workspace we need to see if anyone has used it before with PAD.
Is PAD installed inside the same machine where the Workspace applications are? If so, then you can try out and see how the responsiveness is.
If not, then anything on two different machines (PAD and Citrix Workspace applications) is going to be troublesome. Best thing would be to try it out.