Short answer: No.

Longer answer: There are many modules and other techniques out there to obfuscate your Perl code, but anyone who knows Perl and is even marginally motivated to do so can de-obfuscate it without too much effort. (The exact amount of effort depends on which method is employed and I've never been interested in using them, so I can't offer any advice on which to use beyond "don't bother".)

For more detailed answers: Use the search functions. As already mentioned, this seems to come up every month or two.