Hi,..I want to convert my doc file to PDF,....
Yes, there are alot of methods to convert your doc. to PDF. Directly from your Word 2010 using save as PDF (if you didn't find in your Word, you need to install the adon first, just go online...), or using some software, free or not free, go to online services at many web to convert to PDF, up to you.
If you choose the free one and no connection internet during PDF making, here, a good one. PrimoPDF. It's free, you just need to download first the software, and install, then you'll get the more faclilties that you didn't find in your Word. Especially facilities to protect your document, like password, options to edit, about images, and the many others,..
Here, the link you should visit to get PrimoPDF
http://www.primopdf.com/index.aspx
Happy make your experiments, to get the best results in making PDF,...
