Signing a document without accepting its contents when forced to do so. Is it possible?

What does it mean if I sign a German document with "i.A." before my signature?

In Germany, if you sign a document with “i.A.” before your signature, it means “im Auftrag” which translates to “on behalf of” or "by order of"1. It indicates that you are signing the document on someone else’s behalf and that you have been ordered to do so by a superior2

I.A. (im Auftrag) | WordReference Forums

What does i.A. mean - Translations - Toytown Germany

Sign on behalf – when is it allowed? | Flixcheck

by order of ...

on behalf of ....