This package was developed by Burhan (https://sourceforge.net/u/burhan/profile/) and released under LGPLv2 Licesence.
It is no longer under active devlopment. But still can be used to extract the highlighted text from a PDF file.
- Make sure java installed in your device
- Place the highlighted PDF in the same directory where the executable is.
- Run "java -jar pdfhex.jar" in the terminal
- Choose the PDF file and click extract.