I am using samsung tablet.I would like to use bookmark to access different chapters quickly and to find the chapter Iwannt to read easier and faster but I couldn't find the icon "open book"which is book mark in my adobe reader similar to what exists in apple tablet.
I understand that you are unable to use the bookmark option in your Samsung Tablet like you used to in your Apple Tablet. Apologies for the inconvenience caused.
There are certain differences in the application interface between Android and iOS due to which you are facing this issue.
I would suggest you to click on the three dots on the top right when you open the book you want to read in your Samsung Tablet-> Click on contents and you will be able to get the bookmarks and can access the different chapters exactly the same way you used to.