Enhancement: Prompt for password before processing a password protected document

[timbuktumor]

PDFsam Version 4.0.4

Software will attempt to process password protected files if the password has not been entered. It fails with java errors and warnings.

A user friendly workflow could prompt for the password (or tell them how to enter it) before processing the document if the password is missing.

Finding the padlock symbol for the first time was not obvious to me.