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APPENDIX I                                            Computation of Object Digests



To accomplish this, the document object digest does not include pages that have a
value for the TemplateInstantiated entry (see Table 3.27), indicating that they are
instantiated from a named page. At the time the signature is verified, the follow-
ing occurs:
• An object digest is computed for every named page in the document.
• Using the same method, an object digest is computed for every page in the doc-
  ument that has a TemplateInstantiated entry and matched against the digest for
  the corresponding named page.
• Verification succeeds only if the digests match for all instantiated pages in the
  document.

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