The pdf viewer and editor use the syscfusion framework.
See a full explanation in Interface.
1. Open pdf.
2. Save.
3. Print.
4. Go to first page.
5. Go to previous page.
6. Zoom in.
7. Zoom out.
8. Fit window.
9. Fit page.
10. Sticky Note.
11. Draw free.
12. Highlight text.
13. Underline text.
14. Drawing tools.
15. Color picker.
