Word spacing problem

I have a word document from a client. I had to reformat the document size, font and point size. When reformatted, I have random instances where words are running into each other. Every instance of this is at the end of a line on the original document, possibly indicating there was a soft return there? Strange thing is that when I show the non printing characters it clearly shows that there is a spaceband between the words yet the words still run together. Does anyone know to to get around this, the document is 300 pages long.OriginalFormatted