Yes, you can.

After opening the camera, click the 'doc' icon in the top toolbar to start automatic photo taking. When the camera finds the document border, it will automatically take a picture.

After switching to batch shooting mode, click the 'doc' icon on the top toolbar to automatically take pictures continuously. As long as the phone's available RAM (not the phone's memory) is sufficient, it is not a problem to shoot 99 shots in one go.