I am working with SP on prem 2019 and have set files to launch in client apps by default and it seems to be working fine. Specifically for PDF files, when they are clicked from SharePoint, they launch fine in Adobe reader client but does not prompt for Check out and open.
I have version 2019.012.20036 installed for Adobe. if anyone came across this, please share thoughts what should be changed so users get prompted for check out and open when PDF launches in Adobe client.
Also FYI, versioning settings-> Require documents to be checked out before editing is set to Yes' . Due to this for all word and excel files, check out and open prompt is working fine but not for PDF files.
Thanks in advance.