BlogBooker is a Free service which will help you to convert your Blogger, WordPress, LiveJournal blogs to PDF and save. As of now am writing about blogger to PDF only, while I will write the Wordpress blog to PDF only if there is much difference in the procedures.
1. Visit http://draft.blogger.com
2. Go to settings of the blog which you need as PDF
3. Left column, Select Other
4. Select Export Blog
5. Click Download Blog and Save the XML file
6. Visit http://blogbooker.com/blogger.php, select the XML files, enter your blog URL, and select the settings as you needed and click “Create your BlogBook”
7. Wait and save your PDF
You can see a sample page below