Printed PDF as evidence in court ??

Hi
I have a question:
Oftentimes PFD documents are printed to serve as written evidence in court, hence the metadata is not available on a written document.
As an example;
Financial- accounting- and other data are stored economic-administrative programs and are extracted at appropriate intervals and distributed according to agreements/contracts etc.
When this information is extracted to PDF and distributed, the original PDF-file contains Metadata relevant to the time of production, such as with invoices.
It is mandatory to store bookkeeping and accounting data over years by law. Economic-administrative programs may reproduce any report at any given time, also years after actual time.
However, these reports (at any given time) also carry metadata, i.e. dates of creation, who are not available on a written document.

Am I right that printed PDF documents without verified Metadata of production etc. hardly can serve as written evidence?

If you know any place I can get my claim verified I will be very grateful

Bjorn H