I made several highlights on Kindle Touch to PDF files. Kindle saves the highlighted text in a separate file, not on the PDFs themselves. I have all the text of the passages I want highlighted, what I need is: a program that can find long phrases and then highlight these phrases. This way, I can build a macro for this program to loop and do this for all my text passages.
I tried Adobe Acrobat XI, but Acrobat has a limit on how many words I can search (~28 characters). I know I could split the highlights, but it's important for me to not do this. So, my questions are:
Is there a software that can do this? (Search for a long string and, once found, highlight it and save the modified PDF?)
I'm on Windows 7 Ultimate x64