No, it's not. This is another example of the "Microsoft" forum responders (actually third-party contract employees) not reading the question, although to be fair, the OP claimed to have accidentally removed Microsoft Print to PDF.
IF the OP really had Windows 7, it's more likely that either Adobe Acrobat (not Acrobat Reader) was installed or there was some third-party PDF creator installed at some point. One of the better free "print to PDF" utilities is CutePDF Writer: http://cutepdf.com/Products/CutePDF/writer.asp