The following values are supported:

• None: Prevents the user from making any changes to the document, including filling signature and form fields.
• Ins-Del: Lets users insert, delete, and rotate pages, as well as create bookmarks and thumbnail pages. This option is available only if a high encryption level (Acrobat 5.0, 6.0, 7.0, or 9.0) is selected.
• FillForm: Lets users fill forms and add digital signatures. However, users cannot add comments or create form fields. This option is available only if a high encryption level (Acrobat 5.0, 6.0, 7.0, or 9.0) is selected.
• Comment: Lets users fill forms and add digital signatures and comments.
• Page layout, touch-up, filling in form fields and signing existing signature fields: Lets users insert, rotate, or delete pages and create bookmarks or thumbnail images, fill out forms, and add digital signatures. This option does not allow users to create form fields. This option is available only if a low encryption level (Acrobat 3.0) is selected.
• Any: Lets users change the document by using any method listed in the Changes Allowed list, except remove pages.

file2pdfconfig Schema