Hi @Antonio70 ,
Hope you are doing well, and thanks for reaching out. We are sorry for the trouble you are experiencing.
Before suggesting anything, I need to confirm a few points since the question could mean more than one thing:
Are you trying to see this information inside the PDF itself, for example, in the document properties or metadata in Acrobat, or are you referring to information Windows keeps about the downloaded file, such as its origin when it was saved to the D: drive?
Are you using Adobe Acrobat or Acrobat Reader to open the file, or a different program?
Is the goal security-related, for example, checking whether the email or the download source is legitimate, or is this just for keeping a record of where each PDF came from?
The download source (the URL the file was downloaded from) is not normally stored inside the PDF by Acrobat. That is a Windows feature, not an Adobe one. Windows sometimes stores that information in an alternate data stream tied to the file, related to what's called the Mark of the Web. That can sometimes be seen under the file's Properties > General tab, where a note may appear indicating the file came from another computer, with an option to unblock it. That marking does not always include the exact URL, and it is not something Acrobat controls or displays.
If the goal is to trace the real sender or site for security reasons, such as suspected phishing, the more reliable approach is to check the full email headers rather than the PDF file itself.
Hope this information will help. Let us know if you are referring to something else.
~Amal
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