Thanks for your feedback.
PLEASE always open up a new thread here, don't add to existing threads! Every question/ issue should have its own thread, otherwise it becomes confusing for new users!
Any customizations will require knowledge of CSS especially for print!
Just create a new css file, the file name has to be
To make this, use a text or code editor for that (TextPad, Note++ on Windows for example...).
To this file add the CSS selectors/rules that you want to overwrite regarding the packaged print style sheet of the plugin. For existing rules from the plugin you might copy them, modify and add !important to that (most of the time...).
You can also add new stuff in your custom CSS file.
You have to be familiar with CSS of course. There are many online tutorials for that out there. Google will help... :)
When the file is ready, upload it via FTP to this folder in your WordPress install:
Note, if you want to make completely your own print style sheet with my plugin, the above process would be exactly the same, but you then name the file:
Hope that helps :)