Line Ends With Hyphen

If the line ends hyphen i want to concatenate that corresponding word
with the next line first word.Is it possible using TextExtractor
class?.If yes,how?

There are couple of ways you could remove hypens from the extracted
text:

a) The simplest option is to pass dehyphen = true in the call
TextExtractor.GetAsText:

pdftron.PDF.TextExtractor.GetAsText(bool dehyphen = true)

b) The other option is that you iterate through lines on the page. You
could use
TextExtractor.Line.EndsWithHyphen() to identiy lines that end with a
hyphen and use this info to eliminate hyphen and merge corresponding
words.