Page Layout ⇒ Printing Filename onto PDF; referring to appendix

[CM]

Hello folks.

I have to create a project-log and I have some issues because it is my first one.

The text etc is already done but now the prcision work begins.

The log is separated into different sections with a few subsections. At the end of a subsection I want to refer to the appendix. I imagine something like this: "blafasel.. the simulation of blubb is on appendix \ref{xy}"
Is it enough to includepdf under \appendix with label {xy}?

The second question is: How do I print the filenames of the ingluded files onto them? The program we simulate our tasks does not offer to enter the Filename to the sheet so an uninformed person does not know what sheet is for what task...
short: including pdf with an overlayed filename so anyone can see which task is simulated.

Thanks for your help