In Map Viewer, on the Map only tab of the Print panel there is a field that allows you to specify the file name of the exported map document:
In the help page it says: 'Type a file name for the map document.'
When exported, the Exports window shows that the file name of the exported map document to be the value entered in the relevant field:
However, opening or downloading this file shows the filename of the exported map document is something else completely. In the above example, the filename generated was:
x_____x4bXdzBU2568MD6PXoWXXGw..x_____x_ags_b2131163-92d5-11ef-b550-12fb48fcd9e1.pdf
This seems like a bug but I can't find any record of it anywhere. Just wondering if this is a known issue or if the 'file name' field isn't meant to be used as the name for the file?
Tested in both Chrome (latest version) and FireFox (latest version) and it's the same behaviour in both.
I am using Experience Builder (on AGOL) with the Print widget and there's no setting for 'File name' like map Viewer has under the Map only tab. There is an input field for Title, however, and I wonder if their underlying functions are the same.
For the Map Only template with the ExB print widget, it seems like it only uses the Title input to name the file within the list of exported files in-app, but not for the file itself. The file itself has a gibberish name like the one in your example. I checked with an old WAB app and it seems like the print tool in there results in the same behavior, so I'm under the assumption it's working as intended. Guessing it's a blob storage thing why it's named like that.
Probably something for the devs to look into making the name of settings like this more uniform across the software or providing more tooltip explanations.