DifferencesEntry

Héritage et contrats

Parent : PDF\Specification\SchemaEntry

Définition dans la norme

Tableau 243 · Entries in the FDF dictionary
ISO 32000-1:2008, §12.7.7.3.1 · page PDF 468 ↗

/Differences stream

(Optional; PDF 1.4) A stream containing all the bytes in all incremental updates made to the underlying PDF document since it was opened (see 7.5.6, “Incremental Updates”). If a submit-form action submitting the document to a remote server as FDF has its IncludeAppendSaves flag set (see 12.7.5.2, “Submit-Form Action”), the contents of this stream shall be included in the submission. This allows any digital signatures (see 12.8, “Digital Signatures”) to be transmitted to the server. An incremental update shall be automatically performed just before the submission takes place, in order to capture all changes made to the document. The submission shall include the full set of incremental updates back to the time the document was first opened, even if some of them may already have been included in intervening submissions. Although a Fields or Annots entry (or both) may be present along with Differences, there is no requirement that their contents will be consistent with each other. In particular, if Differences contains a digital signature, only the values of the form fields given in the Differences stream shall be considered trustworthy under that signature.

Qualificateur : Optional; PDF 1.4

Les descriptions conditionnelles restent traçables. La présence d’une définition ne réalise pas à elle seule un codec, une signature ou tous les traitements du format. Lire la couverture.

Construction

Méthodes héritées

Propriétés

Constantes

'Differences'

'243'

false