Hello Murat Koksal,
You can copy/paste the text from Word into the Note field on a task.
The task will have a note indicator in the notes field. You may
print the notes out as a separate page when printing the view by
selecting the option in the File > Page Setup dialog.
If you want text to appear directly on the Gantt chart graphic,
you'll need to work with the text box tool on the drawing toolbar.
Text boxes do not have formatting capabilities for the text. You
can change the background color of the text box or change line style
around the text box, but no text formatting choices.
I hope this helps. Let us know how you get along.
Julie
Project MVP
Visit
http://project.mvps.org/ for the FAQs and additional
information about Microsoft Project