EncryptionDictionaryTable3_18

Reference / Adobe extensions: dictionaries, entries and definitions

class final Core · roukmoute/pdf 0.6.2

PDF\Specification\Adobe\Dictionary\EncryptionDictionaryTable3_18

Adobe 1.7 ExtensionLevel 3, table 3.18: Entries common to all encryption dictionaries.

Read the source declaration ↗

Inheritance and contracts

Parent : PDF\Specification\SchemaDictionary

Interfaces : Countable, IteratorAggregate, PDF\Syntax\FileStructure\BasicType, Stringable, Traversable

Definition in the Adobe supplement

Table 3.18 · Entries common to all encryption dictionaries
PDF 1.7 · Adobe ExtensionLevel 3 · §3.5 · PDF page 14 ↗

Entry	PDF type	Requirement	Source
`/Filter`	name	Required	ISO · 20 · p.64
`/SubFilter`	name	Optional; PDF 1.3	ISO · 20 · p.64
`/V`	number	Optional but strongly recommended	Adobe · 3.18 · p.14
`/Length`	integer	Optional; PDF 1.4; only if V is 2 or 3	ISO · 20 · p.64
`/CF`	dictionary	Optional; meaningful only when the value of V is 4; PDF 1.5	ISO · 20 · p.64
`/StmF`	name	Optional; meaningful only when the value of V is 4, or 5 for ExtensionLevel 3	Adobe · 3.18 · p.14
`/StrF`	name	Optional; meaningful only when the value of V is 4, or 5 for ExtensionLevel 3	Adobe · 3.18 · p.15
`/EFF`	name	Optional; meaningful only when the value of V is 4, or 5 for ExtensionLevel 3	Adobe · 3.18 · p.15

Each entry preserves its ISO or Adobe source. Related rules and mechanisms are described in supplement coverage.

Construction

__construct()

public function __construct(PDF\Syntax\Object\DictionaryObject\Entry ...$entries)

Declared by PDF\Specification\Adobe\Dictionary\EncryptionDictionaryTable3_18 · View the code ↗

Inherited methods

11 methods from parents and contracts

__toString()

public function __toString(): string

Declared by PDF\Syntax\Object\DictionaryType · View the code ↗

count()

public function count(): int

Declared by PDF\Syntax\Object\DictionaryType · View the code ↗

definition()

public function definition(): PDF\Specification\TableDefinition

Declared by PDF\Specification\SchemaDictionary · View the code ↗

entries()

public function entries(): iterable

@return iterable<Entry>

Declared by PDF\Syntax\Object\DictionaryType · View the code ↗

get()

public function get(PDF\Syntax\Object\NameType|string $key): ?PDF\Syntax\FileStructure\BasicType

Declared by PDF\Syntax\Object\DictionaryType · View the code ↗

getIterator()

public function getIterator(): Traversable

Declared by PDF\Syntax\Object\DictionaryType · View the code ↗

has()

public function has(PDF\Syntax\Object\NameType|string $key): bool

Declared by PDF\Syntax\Object\DictionaryType · View the code ↗

toPdf()

public function toPdf(PDF\Serialization\SerializationContext $context): string

Declared by PDF\Specification\SchemaDictionary · View the code ↗

validate()

public function validate(): void

Checks unconditional requirements; conditional and inherited rules remain explicit.

Declared by PDF\Specification\SchemaDictionary · View the code ↗

with()

public function with(PDF\Syntax\Object\DictionaryObject\Entry $entry): static

Declared by PDF\Specification\SchemaDictionary · View the code ↗

without()

public function without(PDF\Syntax\Object\NameType|string $key): static

Declared by PDF\Syntax\Object\DictionaryType · View the code ↗

Constants

Name	PHP value	Origin
`COMMON_TABLES`	`[0 => '20']`	PDF\Specification\Adobe\Dictionary\EncryptionDictionaryTable3_18
`TABLE`	`'3.18'`	PDF\Specification\Adobe\Dictionary\EncryptionDictionaryTable3_18