I just want to assemble a a number of pdf files into one document.
My procedure:

• setting up the file list as usual
• defining the output file
• hit the "run" button but nothing is happening:
  . no progress in the run bar
  . no file produced
  I'm not sure: -is it mandatory to fill anything else?
  e,g,, the other settings that are listed?
  Please help: I#m working on a Tax Declaration:
  I did not have this problem last year, with an older version of PDFsam
  Thanks so much.