Currently - I have almost 6000 attachments linked to my Water GIS system. Most of them are composed of .PDF construction as-builts and .JPEG field phtotos. However - these .PDFs are constantly being updated. The problem I have is when one of the "Native" external files are modified and saved - the editor has to go into ArcMap - remove that attachment and reattach the same file. This makes it really frustrating when there are alot of attachments being updated on a regular basis. it would be nice that when the external native file is modified and saved - nothing has to be done to the attachment in ArcMap.