merging pdf files into a custom book

[escallonia1]

I have a directory with hundreds of .png files which I want to merge into a single pdf book. When I filter the directory to include the files I want and then select them all, I can 'print' to a pdf writing program. The problem is that either some files are missing, or not in the order they showed in the (Windows) file manager. Is there a way to specifiy what order the png files are to be merged/included?

[Phil Smith]

I have a directory with hundreds of .png files which I want to merge into a single pdf book. When I filter the directory to include the files I want and then select them all, I can 'print' to a pdf writing program. The problem is that either some files are missing, or not in the order they showed in the (Windows) file manager. Is there a way to specifiy what order the png files are to be merged/included?

We can't help you with problems you are having with another program.