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                                                   735
         SECTION 8.7                                                           Digital Signatures



KEY        TYPE        VALUE

Annots     array       (Optional) An array of names specifying additional annotation-related usage rights
                       for the document. Valid names in PDF 1.5 and later are Create, Delete, Modify, Copy,
                       Import, and Export, which permit the user to perform the named operation on anno-
                       tations.
                       The following names were added in PDF 1.6. They are permitted only when the signa-
                       ture dictionary is referenced from the UR3 entry of the permissions dictionary (see
                       Table 8.107):
                          Online                 Permits online commenting; that is, the ability to upload or
                                                 download markup annotations from a server.
                          SummaryView            Permits a user interface to be shown that summarizes the
                                                 comments (markup annotations) in a document.

Form       array       (Optional) An array of names specifying additional form-field-related usage rights for
                       the document. Valid names in PDF 1.5 are:
                          FillIn                 Permits the user to save a document on which form fill-in
                                                 has been done.
                          Import                 Permits the user to import form data files in FDF, XFDF
                                                 and text (CSV/TSV) formats.
                          Export                 Permits the user to export form data files as FDF or XFDF.
                          SubmitStandalone       Permits the user to submit form data when the document is
                                                 not open in a Web browser.
                          SpawnTemplate          Permits new pages to be instantiated from named page tem-
                                                 plates.
                       The following names were added in PDF 1.6. They are permitted only when the signa-
                       ture dictionary is referenced from the UR3 entry of the permissions dictionary; see
                       Table 8.107 (however, see FormEx below):
                          BarcodePlaintext       Permits text form field data to be encoded as a plaintext
                                                 two-dimensional barcode.
                          Online                 (PDF 1.6) Permits the use of forms-specific online mecha-
                                                 nisms such as SOAP or Active Data Object.

FormEx     array       (Optional; permitted only when the signature dictionary is referenced from the UR entry
                       of the permissions dictionary; PDF 1.5) An array of names specifying additional form-
                       field-related usage rights. The only valid name is BarcodePlaintext, which permits text
                       form field data to be encoded as a plaintext two-dimensional barcode.

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