The most easiest way I have seen is using google docs. Just upload your document to google docs and use File->Download as->PDF. If you have an online document, you can even get a pdf copy without having the file in your harddisk as mentioned here- skipser.toolsbysk.com/p/2/p/general/convert-files-to-pdf-easily-with-google-docs-viewer.html
I use doc2pdf.net/ its fast and easy and doesnt have to download anything also there are other features too, like powerpoint, execl can be converted to pdf.
Ask for a friend who has Ms 2007/2010 to make this creation for you. It has add-in df creator that you can easily save as a pdf file from it. And if you want to make a professional pdf file with a password, you can search for free online pdf creation software, good luck.
try this online application. Converts word, excel and powerpoint to pdf and xps formats. http://pdfaid.com
There is lots of word to pdf convertor tool available on net. you can try this one http://www.doc2pdf.net/
Just run a Google search for convert document to pdf and you will find plenty of free online services. It's that easy. You don't even have to download software or anything.
I have been using both, actually, they're pretty simple and convenient, my advice is to try them, without any doubt.
Use MS Word 2007... Now see the top left button.. click on it then you will see Save As.. click it and you will find a sub menu PDF or XPS.. click on it and you can save any word document into a PDF.. It is a very simple method and I have tried it many time.. Also you will have control over how you would like to save or edit your pdf document... Thanks