class final Core · roukmoute/pdf 0.6.2
PDF\Specification\Dictionary\SignatureFieldSeedValueDictionaryTable234\SubFilterEntryTable 234, /SubFilter; PDF type: array; Optional.Inheritance and contracts
Parent : PDF\Specification\SchemaEntry
Definition in the specification
Table 234 · Entries in a signature field seed value dictionary
ISO 32000-1:2008, §12.7.4.5 · PDF page 455 ↗
/SubFilter array
(Optional) An array of names indicating encodings to use when signing. The first name in the array that matches an encoding supported by the signature handler shall be the encoding that is actually used for signing. If SubFilter is specified and the Ff entry indicates that this entry is a required constraint, then the first matching encodings shall be used when signing; otherwise, signing shall not take place. If Ff indicates that this is an optional constraint, then the first matching encoding shall be used if it is available. If none is available, a different encoding may be used.
Qualifier: Optional
Conditional descriptions remain traceable. A definition alone does not implement a codec, a signature or every format mechanism. Read the coverage.
Construction
__construct()
public function __construct(PDF\Syntax\Object\ArrayType|PDF\Syntax\Object\IndirectReference $value)Inherited methods
3 methods from parents and contracts
definition()
public function definition(): PDF\Specification\EntryDefinitionkey()
public function key(): PDF\Syntax\Object\NameTypevalue()
public function value(): PDF\Syntax\FileStructure\BasicTypeProperties
| Declaration | Origin and 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 |
Constants
| Name | PHP value | Origin |
|---|---|---|
KEY | | PDF\Specification\Dictionary\SignatureFieldSeedValueDictionaryTable234\SubFilterEntry |
TABLE | | PDF\Specification\Dictionary\SignatureFieldSeedValueDictionaryTable234\SubFilterEntry |
VARIABLE | | PDF\Specification\SchemaEntry |