Send for Shared Commenting on SharePoint not working

[TimoLenz]

Hi,

I am trying to send a pdf to SharePoint for shared commenting. Our setup is as follows:

Adobe Acrobat Pro DC 2017

SharePoint 2013 / on-Primse / ADFS, SAML Authentication

I can successfully setup a server profile and choose a subsite including a library. But when the dialog wants to finish the task, a error message gets displayed:

The filename you specified is not valid because it does not include a .pdf extension, contains one or more invalid characters or the path preceding it refers to a protected system location

In Fiddler I see, that acrobat sends a PROPFIND request to the location with the pdf-filename extended with the words "_review"   (https://sharepointhostname.com/content/site/subsite/myfile_review.pdf") to the server. The server responds with a 404.

If I upload a renamed copy of the file (myfile_review.pdf) to the same location, acrobat prompts that the filename already exisits ?! So I think it is not an access/auth issue for the location.

Can anyone help, please?

Kg

Timo

[TimoLenz]

One more thing,

If I try to share from the same machine using an O365 SharePoint tendant it still does not work. If I use a private PC I can share it on this tendant.

Other user with company pcs have the same problem.

Kg

Timo

[TimoLenz]

okay -  installed Fiddler on the my private pc and it looks like the 404 response, is an expected on. I can the 404 on my private pc, too.

The next request is a PUT, where the file is uploaded. But on the company pc, this request is never send.