Downloading a single DLL is often a "bandage" for a larger problem. A mismatched version can cause the application to crash or fail to load entirely.
Using modified versions of this file to bypass trial limits is considered software piracy. Adobe officially ended support for Acrobat XI in October 2017 , meaning no further security patches are provided even for legitimate users. How to Safely Resolve "Missing File" Errors
Every file you find claiming to be a crack for this specific file is either:
Sometimes, simply reinstalling the software can resolve issues with amtlib.dll. To do this: