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1285
Index
StructTreeRoot entry (document catalog) 141, 856, 899 See also
StructTreeRoot object type 857 structure attributes
structural parent tree 857, 868-872 structure element dictionaries
annotations 608 structure types
form XObjects 359 structure hierarchy 856-860
image XObjects 342 and accessibility to users with disabilities 936-940
next key 858, 869 in Linearized PDF 1038
page objects 147 logical structure order 889
structure, logical See also
See logical structure structure elements
structure attributes 873-877 structure tree root
attribute classes 858, 873-874 structure tree
owner 873 See structure hierarchy
revision number 859, 873-875 structure tree root 141, 856-858
standard. See standard structure attributes class map 858, 874, 913
structure element dictionaries 858-860 ClassMap entry 858, 874, 913
A entry 859, 873-875, 913, 915 and content extraction 899
ActualText entry 470, 860, 888, 892-893, 895, 912-913, IDTree entry 857-858
915, 944 K entry 856-857, 899
Alt entry 860, 888, 892-893, 912-913, 915, 942-944 ParentTree entry 857, 869-870
C entry 859, 874-875, 913, 915 ParentTreeNextKey entry 858, 869
E entry 860, 892, 913, 915, 945 role map 858, 860
ID entry 858, 935 RoleMap entry 858
K entry 857, 859, 861, 868 Type entry 857
Lang entry 860, 913, 915, 937, 939 structure types 58, 858, 860-861
P entry 858 marked-content tags and 862
Pg entry 858, 863, 868 role map 858
R entry 859, 874-875 standard. See standard structure types
S entry 858, 898-899, 1082, 1089 structured elements
T entry 859 nested lists 1089
Type entry 858-859 table of contents 1082
structure elements 856 Style dictionaries
abbreviation expansion 860 See CIDFont Style dictionaries
access, dictionary entries for 870
Style entry (CIDFont font descriptor) 461
alternate description 860, 887, 942-943
annotations, sequencing of 890 sub operator (PostScript) 176, 989
attribute classes 859, 874 Sub predictor function (LZW and Flate encoding) 75-76
attribute objects associated with 859 SubFilter entry
and basic layout model (Tagged PDF) 895 encryption dictionary 116, 129, 131
block-level (BLSEs). See block-level structure elements signature dictionary 727, 729, 738
content items associated with 858, 861 signature field seed value dictionary 697, 699
content items, finding from 857, 868-872, 939 Subj entry (markup annotation dictionary) 619
element identifier 857-858 Subject entry
form XObjects in 865-868 certificate seed value dictionary 700
inline-level (ILSEs). See inline-level structure elements document information dictionary 844
language identifier 141, 860
natural language specification 937-941 SubjectDN entry (certificate seed value dictionary) 700
non-graphical information (user properties) 876 submit-form action dictionaries 703
outline items, associated with 586 F entry 703
replacement text 860, 944 Fields entry 703, 706-707
revision number 859, 874-875 Flags entry 703, 706
structure type 858, 898-899 S entry 703
Tagged PDF layout 899 submit-form actions 653, 703-707, 1119-1120
title 859 FDF differences stream 715
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