title: Pdf setting the font color to the text
body: <p>I am trying to add some text to a pdf file manually.I was able to add new text with a specific font. But i am not able to set the font color. So how can i do it manually?
  (I just want to change these manually as i already have the code where i write these byte to make the pdf file)
  Also how can i use graphic states specified in the pdf standard to manipulate the text so that feature changes does not affect the color changes etc.How exactly i can use the graphic state?</p>
  
  <p>Source pdf file <a href="http://incometaxsoft.com/pdf/itr.pdf" rel="nofollow">click here</a>
  Modified pdf file <a href="http://incometaxsoft.com/pdf/ITR%20added%20contents,%20fonts.pdf" rel="nofollow">clcik here</a></p>