Download this software, install and launch it, the interface like this:
Step 1: Add File - Click to browse the computer to find your wanted files to the file list.
Step 2: Set output format - Choose the iPad as your device and the next drop-down list will appear the output formats which iPad supports.
Step 3: Select output folder - Click to find the familiar place to you to put output file.
Step 4: Convert video - Click to start converting DVD to iPad.
It can finish the converting DVD to iPad automatically after setting all, so you can save the time to do the important things.