I am interested in the options for this but for the iPad as well. I had seen a few jazz guitarists playing and one used an iPad to display all of the sheet music and set lists they used. When looking into it, several programs did not have some of the nice features that are listed in links you’ve attached here. Have not yet decided but these have even more than I thought might be available and change my thinking.
I know this much, There is a lot of effort in scanning loads of sheet music, titling, sorting and really getting it so it is organized… so the choice you make needs to accommodate everything your looking for.