While sorting out my book cover for publishing via Createspace I came across a great tool for creating PDF documents really easily.
Here are some of the benefits of this tool:
1. Free to download and use
2. Can be used with any application where you can print (e.g. Paint.net, word, open office, etc.)
3. You can specify the quality of print
4. You can create your own custom PDF size
5. Set DPI of print
So what is this tool? https://www.dopdf.com/
I scanned it with my virus software and it was clean.
Here is a video of how I used it to create my Createspace book cover. I designed the cover in Paint.net and after downloading this software I was able to print it as a PDF file and save it.