How to create PDF file

sometimes i must send document in pdf format, but i just have acrobat reader, do you have any sugestion to create file pdf?

Making PDFs traditionally required Adobe’s expensive Acrobat software, but since PDF became an open standard a couple of years ago lots of free creation tools have cropped up. Microsoft offers a free add-in for Microsoft Office 2007, for instance. Follow the instructions to download and install it and the next time you choose the Save As option in an Office application you will be able to save the document as a PDF. Alternatively, installing a tool such as PDF Creator will add a new ‘printer’, called PDF Creator, accessible from any application with a Print command. Just select the PDF Creator printer to create a PDF file.