C# code -Compare 2 pdf and give output as 2 pdfs with color

Question

I have 2 pdf files pdf1 and pdf 2.I want to compare both pdf and should give result as 2 pdf outputs.

The 2 output pdf ,the changes should be highlighted in some color.say for output 1 -red color and output 2 pdf-green color for the change

 Eg: input pdf 1   - text is  :-  I am anoop

        input pdf 2 - text is :- I am aneesh

 

so the output should be as follows:

 

output pdf 3:  I am anoop

 output pdf 3: I am aneesh

 

means text anoop is changed to aneesh.So anoop in red color and aneesh in green color. Please provide the c# code for this.