PDF Reader Pro will remember the last page you viewed from the last session based on default setting. Hence, it helps you save time on scrolling the document to find the specific page you need to read. You are allowed to cancel the setting by doing the followings:
1. On the Home screen, click Settings ;
2. In the General tab, you will see the option Remember last page viewed under the Default Settings is already selected, click it again to cancel this default setting.