Hi,

I'm developing an application that basically compares the text between two pdf documents. Currently to show the differences to my users I'm highlighting the text differences and it works fine when the differences has a lot of chars. But sometimes the difference is very small, sometimes the difference is only one char, and in this situations, is very difficult to see the highlighted char.

I'm already scrolling the page to the difference position but even doing that it's still hard to see, mainly when the difference is small (like just a single . ).

Is there an easy way to draw a rectangle around the highlighted text without rendering the page in a bitmap? Or maybe to expand the height of the highlight. Doing that would be easier for my users to identify the differences.

Thanks in advance,

Ed.