I was able to handle word-wrap in a Visualforce PDF page by adding 'white-space: pre-line' to the td tag style.

            td{
                white-space: pre-line;
                word-wrap:break-word;
                overflow-wrap: break-word; 
            }

I was able to handle word-wrap in a Visualforce PDF page by adding 'white-space: pre-line' to the td tag style. 'white-space: normal' also worked.

            td{
                white-space: pre-line;
                word-wrap:break-word;
                overflow-wrap: break-word; 
            }