I have found many sites and postings that the question is the same as mine but what they all seem to have in common is people are answering them with examples of how to inse
This question isn't directly related to what you want to accomplish, but it is indirectly related
JCIS posted a great application that shows you the very arduous task of locating specific text, albeit with VB. It wouldn't be as simple as plugging it into a vb > c# converter, but it should be translatable. This may seem like an easy task to accomplish you might think, but PDF is not a document format, it's a display format technically. The difference between those 2 is what makes this such a long process.