THANKS: helper05 and ScottGem. Answers helped. Made me realize I didn't phrase my question quite right. Started with 104 pg. 'PDF' file. Saved it as a 'word' file. My goal is to highlight a topic, or phrase, or a couple sentences, etc... for an entire section.
Then, save all my highlighted text into a new file --- all at once --- not copy & paste each word or phrase, at the time I highlight it----defeats the purpose of highlighting. Discovered 'master document' and 'outline' , but still copy an paste each phrase. Has to be a better way. Help! Am not even half way through.

Open the Word file you just saved.
Click on edit, select all, press 'CTRL and C' keys at same time to copy text. This will select and hi-lite the 'total content' of the file.
Open a 'new' Word .doc file and press 'CTRL and V' keys at same time. This will
Paste the 'total content' into your new file. Save the document.
Then with the new word document open, you can select pick and delete
Unwanted content.
Or... you can (while holding down the Control key) hi-lite the data / topic(s)
You want to keep. When all selected, press CTRL+C (this will copy all the text
You just hi-lited). Open a 'new' document and press CTRL + V which will paste
The text content you just selected.

Or, maybe an even eaiser way to do this, is highlight the first set of word/phrases, etc. that you want to copy into another document.

Then, when you get to the next set of words/phrases, etc. that you want to copy, hold your Ctrl button down while you click and drag to highlight what you are wanting to copy and paste into your other document.