PDFCreator should be able to make signed pdf files using stored passwords. ie Formats -> PDF -> Signing
make a configuration option in the tab which stores the password ( give the user a warning about the insecurity of stored passwords when this option is enabled! )
when a new pdf file is made make pdfcreator read the stored options if it includes that stored password in the file use that to make a new pdf file without any prompts for passwords while pdf file generation as happens in version 1.3.2
also right now pdfcreator will refuse to create a signed file under the following circumstances
1. The PFX file has no password - ie a blank password.
2. before the pdf file Signing when pdfcreator asks for the password it will not accept a blank password. as the password prompt does not turn green on a blank password. even though the pfx file has a blank password.