Reference_Syntax.action = “include | exclude | all”
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include (default)
The document signature protects all the fillable form nodes in the specified collection. This option requires at least one valid ref child object whose text value is a reference syntax expression identifying the nodes that are protected by the document signature.
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The document signature protects all the fillable form nodes that are not in the specified collection. This option requires at least one valid ref child object whose text value is a reference syntax expression identifying the nodes that are protected by the document signature.
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Form Model

action