Running Word 2007. Excuse me if I don't use the correct terminology

in the following. I recently scanned a booklet, and had it converted to a PDF with text recognized. I copied and pasted the resulting text into a blank Word doc. Text is left justified. All good so far, but each line is terminating in a paragraph mark at ~ 4.5", max. I would like the lines to fit a standard 8.5 x 11 page, with 1" margins, so each line should be ~ 6.5". The doc is ~ 20 pages long. Other than going to the end of each line + deleting the paragraph mark, is there a way to accomplish this on the entire doc at once? Doc is saved as .docx.
I hope my question is clear!
Jazz43