I'm stumped. I made a dataset with a character variable that is 5304 bytes long and the dataset had other variables. I do not see any truncation in the PDF output file.
My character variable is composed of the poem, "Jabberwocky" plus some other text -- repeated to a length of 5304. So, my character string has spaces where PDF can wrap the line. Does your variable value have spaces, where PDF can try to wrap the line??