Hi
What you need to do is to just select the text without using Ctrl+A as this will pick up the background which you say you dont want.
Follow these steps:
1. Position your cursor just before the first word in your document that you want to start the copy from.
2. Enter Ctrl+Shift+Down Arrow (this will select the first paragraph).
3. Continue entering Ctrl+Sift+Down Arrow for as many paragraphs as you have in your document.
4. Enter Ctrl+C to copy the highlighted text.
5. Enter Ctrl+N to open a new document.
6. Enter Ctrl+V to past the contents into the new document without the background.
You could do a test first to see how it works by just select a few paragraphs.
Good luck.
Tony