cause using itext5.5.1 will also read the chinese charater , so i change to xpdfreader's pdftotext.exe
here is the parameter i use:
C:\xpdf-tools-win-4.02\bin64>pdftotext.exe -raw -eol unix XXEAM_WORK_ORDER_EMAIL
_FAX_R_177058651_1.PDF
will return file with no empty space row and end with "LF" Character set.
