Answered
Although I tried all pull down menus of the software, preferences , etc and I googled a lot it is a very big mystery for me how we are determining a font's engosing setting???
In blank document or in TouchUp'ing a ready document I couldn't find any way to change the font's encoding. I can change the font selection itself, I can change the font color or font size but where is the setting for font encoding??
When I look to File/Document/Font section of the program, in some documents I see "Ansi" in some "Custom" or "Roman" ..etc in the encoding part of the fonts.
But who determines this selection. Isn't there any where to determine or to control this selection in Acrobat Pro 8?