Extract date from PDF-information

Some companies send me PDF invoices by e-mail. When I save them, the file creation/modified date equals the date that I'm saving them.
I have noticed that when i preview them and look at the PDF metadata, the PDF creation date does match up with the invoice date.
Is there some way to extract this PDF creation date so I can use that as a prepend date to add to the filename?
Reply to #1:

Hi Maurice, welcome,

Try this: Open ARen and add an "Add" method. Use the following guidelines to start; we can adjust if need be:

Add: <Date Created:yyyy-mm-dd>_
[Make sure not to put a space in. The entry starts with "<" and ends with "_"]
At index: 1
Leave check-boxes blank
Apply to: Name

Now, if you get approximately the answer you want you can adjust it to suit you. Look on this help page for information on date formatting:
https://www.advancedrenamer.com/user_guide/v4/tags_datetimec reated
And you can replace the underscore with any file-legal character(s), of course.

If <Date Created> doesn't give the correct creation date in some or all cases, try using whatever is the name of the metadata field you are looking at and enclose it in the angle brackets.
Let us know how that works for ya...
Best,
DF
Reply to #1:
Hi Maurice,
What happen if you use <ExifTool:ModifyDate> or <ModifyDate:yyyy-mm-dd_hh-nn-ss>?

Miguel