Add document password

GroupDocs.Merger allows to add document password. Here are the steps to add document password:

The following code sample demonstrates how to add document password.

with gm.Merger(constants.sample_pptx) as merger:
    add_password_options = gm.domain.options.AddPasswordOptions("SomePasswordString")
    merger.add_password(add_password_options)
    merger.save(constants.output_pptx)