Key |
Type |
Value |
---|---|---|
Type |
name |
(Optional) The type of PDF object that this dictionary describes; if present, shall be MediaCriteria for a media criteria dictionary. |
A |
boolean |
(Optional) If specified, the value of this entry shall match the user’s preference for whether to hear audio descriptions in order for this object to be viable. NOTE 1 Equivalent to SMIL’s systemAudioDesc attribute. |
C |
boolean |
(Optional) If specified, the value of this entry shall match the user’s preference for whether to see text captions in order for this object to be viable. NOTE 2 Equivalent to SMIL’s systemCaptions attribute. |
O |
boolean |
(Optional) If specified, the value of this entry shall match the user’s preference for whether to hear audio overdubs in order for this object to be viable. |
S |
boolean |
(Optional) If specified, the value of this entry shall match the user’s preference for whether to see subtitles in order for this object to be viable. |
R |
integer |
(Optional) If specified, the system’s bandwidth (in bits per second) shall be greater than or equal to the value of this entry in order for this object to be viable. NOTE 3 Equivalent to SMIL’s systemBitrate attribute. |
D |
dictionary |
(Optional) A dictionary (see Ta b l e 269 ) specifying the minimum bit depth required in order for this object to be viable. NOTE 4 Equivalent to SMIL’s systemScreenDepth attribute. |
Z |
dictionary |
(Optional) A dictionary (see Table 270 ) specifying the minimum screen size required in order for this object to be viable. NOTE 5 Equivalent to SMIL’s systemScreenSize attribute. |
V |
array |
(Optional) An array of software identifier objects (see 13.2.7.4, “Software Identifier Dictionary” ). If this entry is present and non-empty, the conforming reader shall be identified by one or more of the objects in the array in order for this object to be viable. |
P |
array |
(Optional) An array containing one or two name objects specifying a minimum and optionally a maximum PDF language version, in the same format as the Version entry in the document catalog (see Table 28 ). If this entry is present and non-empty, the version of multimedia constructs fully supported by the conforming reader shall be within the specified range in order for this object to be viable. |
L |
array |
(Optional) An array of language identifiers (see 14.9.2.2, “Language Identifiers” ). If this entry is present and non-empty, the language in which the conforming reader is running shall exactly match a language identifier, or consist only of a primary code that matches the primary code of an identifier, in order for this object to be viable. NOTE 6 Equivalent to SMIL’s systemLanguage attribute. |