using Apache PDFbox.java instead of sun,pdfview.java

Question

I am working on a project that does some processes on PDFs and this project used package com.sun.pdfview; My job now is to make these functions works depending on Apache PDFbox library I need to use a class similar to ThumbPanel.java using the Apache PDFbox library

I tried to look for a similar class using the PDFbox but i could not find any similarity