How to Use the PDF Viewer and the Annotation Tools?
This software provides a built-in PDF Viewer and a full set of annotation tools for you to use.
Step 1, click the button “Read/Edit PDF Document”.
Step 2, choose a PDF file and click the button “Open”.
Step 3, the PDF file is open in the PDF Viewer and you can read it now.
Step 4, you can access the annotations tools from the top toolbar now.