I tried action wizard, created Print and added a whole folder to print. somehow only first file printed and no further selection allowed.
I go to 'View' -> 'Tool' -> Action Wizard -> 'Create New Action' -> 'More Tool' -> choose 'Print', name it as Print A-Z.
Under 'File to be Processed', I then click on the folder icon, add the folder I would like to print in batch, in alphabetical order. I can see all the individual pdf file listed.
Then I excute 'Print A-Z' command, 'Start', under 'Printer Dialog', click 'Print'.
Result: only 1 pdf file printed instead of the whole batch.
In printer dialog, it also shown I've only 1 page to print.
No option in acrobat or printer dialog to choose print all files.
thanks