The Advanced PDF Module of InterFormNG includes these features:

-Append additional files to a PDF file, that has just been created (e.g. to include a PDF file from another application).

-Adding a digital signature.

-Embedding extra files in the output PDF file.

-Encryption and password protection of PDF files.

-Ability to add restrictions to output PDF files to e.g. to prevent changes, text copy or printing.

-An option to add input form fields in PDF files. Please notice, that PDF files with input form fields are not PDF/A compatible thus not marked as PDF/A

Each of these features are explained below.

Apart from the options above it is also possible to add a written signature via a special pad with the Intersigning module