Earlier Layout was very simple. But now change the layout. In new layout body divide in 4 parts Top Menu bar, Left Bard, Middle Body and Right side bar.
Top Menu Bar is for different menu tools like Draw, Signature, Highlighter
Right Side Bard will show the properties of menu which you selected from Top menu
Middle Body is of preview of PDF
Left Side bar shows all the list pages of PDF and highlight which one is active at a moment.
What new feature added?
1) Draw tool - Now user can draw anything with any color on PDF
2) Highlight - User can highlight any text or anything on PDF
3) Zoom in/out - User can zoom in/out the PDF preview.
Still my plan is to add more tools on top menu bar. This will become very useful to all who wants to work with PDF, It's good for student, teacher, even for professional purpose.
Please let me know your feedback which is very valuable for me.