class final Core · roukmoute/pdf 0.6.1
PDF\Specification\Dictionary\EncryptionDictionaryTable20\SubFilterEntryTable 20, /SubFilter; PDF type: name; Optional; PDF 1.3.Héritage et contrats
Parent : PDF\Specification\SchemaEntry
Définition dans la norme
Tableau 20 · Entries common to all encryption dictionaries
ISO 32000-1:2008, §7.6.1 · page PDF 64 ↗
/SubFilter name
(Optional; PDF 1.3) A name that completely specifies the format and interpretation of the contents of the encryption dictionary. It allows security handlers other than the one specified by Filter to decrypt the document. If this entry is absent, other security handlers shall not decrypt the document. NOTE This entry was introduced in PDF 1.3 to support the use of public- key cryptography in PDF files (see 7.6.4, "Public-Key Security Handlers"); however, it was not incorporated into the PDF Reference until the fourth edition (PDF 1.5).
Qualificateur : Optional; PDF 1.3
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
__construct()
public function __construct(PDF\Syntax\Object\NameType|PDF\Syntax\Object\IndirectReference $value)Méthodes héritées
3 méthodes des parents et contrats
definition()
public function definition(): PDF\Specification\EntryDefinitionkey()
public function key(): PDF\Syntax\Object\NameTypevalue()
public function value(): PDF\Syntax\FileStructure\BasicTypePropriétés
| Déclaration | Provenance et documentation |
|---|---|
public readonly PDF\Syntax\Object\NameType $key | PDF\Syntax\Object\DictionaryObject\Entry |
public readonly PDF\Syntax\FileStructure\BasicType $value | PDF\Syntax\Object\DictionaryObject\Entry |
Constantes
| Nom | Valeur PHP | Provenance |
|---|---|---|
KEY | | PDF\Specification\Dictionary\EncryptionDictionaryTable20\SubFilterEntry |
TABLE | | PDF\Specification\Dictionary\EncryptionDictionaryTable20\SubFilterEntry |
VARIABLE | | PDF\Specification\SchemaEntry |