A free program for Android, by Tweenti Corp.

An application called Merge Multiple PDF Files will make combining multiple PDF files into a single file simpler than ever. With its efficiency and cutting-edge features, the app will help you save a significant amount of time.

How does the app work?Utilizing the app is as simple as tapping the PDF options, selecting the PDF you wish to combine it with, and clicking the checkbox in the top right corner of your screen. Giving a file a long press to move it will move all of the files in the sequence. Once you’ve arranged them, simply press the Merge button, and the data will be instantly merged.