Changing \textheight in the middle of a LaTeX document

Question

Actually, I want to change \textheight only on one page of my document, then continue with the old dimension again. How can I update \textheight in my .cls file e.g. for my title page? Is there an easy way to change \textheight in the middle of a document? I'd appreciate any suggestions.

Answer 1

Don't change \textheight : use

\enlargethispage{2cm}