The name of the open pdf file is not shown in the upper tabs.

[alvaroviti]

Hello everyone, I usually work with several pdf files simultaneously, and I like to see the name of these open files ... 
But adobe reader only shows me "..." instead of the file name.
 I would like to know if any of you, you know if this can be modified so that the name of the pdf file appears instead of "...".
I enclose a capture of my problem.

Greetings community, and thanks in advance.

[Test Screen Name]

What do you see if you go File > Properties and look for “Title”?

[alvaroviti]

In title there is nothing, it is always empty for any file.

[Test Screen Name]

Ok, so it is trying to use the file name. What is a typical file name, and what language is your Windows system?

[alvaroviti]

The language of my windows system is Spanish. And the name of the file changes, I don't always use them. I would like the name of these files to appear in the upper tabs.