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A collection of possible keys in a PDF dictionary. Copied and adapted from PDFBox.
Constantsยง
- A
- AA
- ABSOLUTE_
COLORIMETRIC - AC
- ACRO_
FORM - ACTUAL_
TEXT - ADBE
- ADBE_
PKCS7_ DETACHED - ADBE_
PKCS7_ SHA1 - ADBE_
X509_ RSA_ SHA1 - ADOBE_
PPKLITE - AESV2
- AESV3
- AF
- AFTER
- AF_
RELATIONSHIP - AIS
- AI_
META_ DATA - ALL_OFF
- ALL_ON
- ALPHA
- ALT
- ALTERNATE
- ANNOT
- ANNOTS
- ANTI_
ALIAS - ANY_OFF
- ANY_ON
- AP
- APP
- AP_REF
- ARTIFACT
- ART_BOX
- AS
- ASCENT
- ASCI
I85_ DECODE - ASCI
I85_ DECODE_ ABBREVIATION - ASCII_
HEX_ DECODE - ASCII_
HEX_ DECODE_ ABBREVIATION - ATTACHED
- AUTHOR
- AVG_
WIDTH - B
- BACKGROUND
- BASE_
ENCODING - BASE_
FONT - BASE_
STATE - BASE_
VERSION - BBOX
- BC
- BE
- BEAD
- BEFORE
- BG
- BITS_
PER_ COMPONENT - BITS_
PER_ COORDINATE - BITS_
PER_ FLAG - BITS_
PER_ SAMPLE - BL
- BLACK_
IS_ 1 - BLACK_
POINT - BLEED_
BOX - BM
- BORDER
- BOUNDS
- BPC
- BS
- BTN
- BYTERANGE
- C
- C0
- C1
- CA
- CALCMYK
- CALGRAY
- CALRGB
- CAP
- CAP_
HEIGHT - CATALOG
- CA_NS
- CCITTFAX_
DECODE - CCITTFAX_
DECODE_ ABBREVIATION - CENTER_
WINDOW - CERT
- CERTS
- CF
- CFM
- CH
- CHAR_
PROCS - CHAR_
SET - CHECK_
SUM - CI
- CICI_
SIGNIT - CIDSYSTEMINFO
- CID_
FONT_ TYPE0 - CID_
FONT_ TYPE0C - CID_
FONT_ TYPE2 - CID_SET
- CID_
TO_ GID_ MAP - CL
- CLASS_
MAP - CLR_F
- CLR_FF
- CMAP
- CMAPNAME
- CMYK
- CO
- COLLECTION
- COLLECTION_
FIELD - COLLECTION_
ITEM - COLLECTION_
SCHEMA - COLLECTION_
SORT - COLLECTION_
SUBITEM - COLOR
- COLORANTS
- COLORS
- COLORSPACE
- COLOR_
BURN - COLOR_
DODGE - COLOR_
TRANSFORM - COLUMNS
- COMPATIBLE
- COMPONENTS
- CONTACT_
INFO - CONTENTS
- COORDS
- COUNT
- CP
- CREATION_
DATE - CREATOR
- CRL
- CRLS
- CROP_
BOX - CRYPT
- CS
- CYX
- D
- DA
- DARKEN
- DATE
- DCT_
DECODE - DCT_
DECODE_ ABBREVIATION - DECODE
- DECODE_
PARMS - DEFAULT
- DEFAULT_
CMYK - DEFAULT_
CRYPT_ FILTER - DEFAULT_
GRAY - DEFAULT_
RGB - DESC
- DESCENDANT_
FONTS - DESCENT
- DEST
- DESTS
- DEST_
OUTPUT_ PROFILE - DEVICE_
CMYK - DEVICE_
GRAY - DEVICE_
N - DEVICE_
RGB - DI
- DIFFERENCE
- DIFFERENCES
- DIGEST_
METHOD - DIGEST_
RIPEM D160 - DIGEST_
SHA1 - DIGEST_
SHA256 - DIGEST_
SHA384 - DIGEST_
SHA512 - DIRECTION
- DISPLAY_
DOC_ TITLE - DL
- DM
- DOC
- DOCMDP
- DOCUMENT
- DOC_
CHECKSUM - DOC_
TIME_ STAMP - DOMAIN
- DOS
- DP
- DR
- DS
- DSS
- DUPLEX
- DUR
- DV
- DW
- DW2
- E
- EARLY_
CHANGE - EF
- EMBEDDED_
FDFS - EMBEDDED_
FILE - EMBEDDED_
FILES - EMPTY
- ENCODE
- ENCODED_
BYTE_ ALIGN - ENCODING
- ENCODING_
90MS_ RKSJ_ H - ENCODING_
90MS_ RKSJ_ V - ENCODING_
ETEN_ B5_ H - ENCODING_
ETEN_ B5_ V - ENCRYPT
- ENCRYPTED_
PAYLOAD - ENCRYPT_
META_ DATA - END_
OF_ BLOCK - END_
OF_ LINE - ENTRUST_
PPKEF - EXCLUSION
- EXPORT
- EXPORT_
STATE - EXTEND
- EXTENDS
- EXTENSIONS
- EXTENSION_
LEVEL - EXT_
G_ STATE - EX_DATA
- F
- FB
- FDF
- FF
- FIELDS
- FILESPEC
- FILTER
- FIRST
- FIRST_
CHAR - FIT_
WINDOW - FL
- FLAGS
- FLATE_
DECODE - FLATE_
DECODE_ ABBREVIATION - FO
- FOLDERS
- FONT
- FONT_
BBOX - FONT_
DESC - FONT_
FAMILY - FONT_
FILE - FONT_
FILE2 - FONT_
FILE3 - FONT_
MATRIX - FONT_
NAME - FONT_
STRETCH - FONT_
WEIGHT - FORM
- FORMTYPE
- FRM
- FS
- FT
- FUNCTION
- FUNCTIONS
- FUNCTION_
TYPE - F_
DECODE_ PARMS - F_
FILTER - G
- GAMMA
- GROUP
- GTS_
PDFA1 - H
- HARD_
LIGHT - HEIGHT
- HELV
- HIDE_
MENUBAR - HIDE_
TOOLBAR - HIDE_
WINDOWUI - HUE
- I
- IC
- ICC_
BASED - ID
- IDENTITY
- IDENTITY_
H - IDENTITY_
V - ID_TREE
- IF
- ILLUSTRATOR
- IM
- IMAGE
- IMAGE_
MASK - INDEX
- INDEXED
- INFO
- INKLIST
- INTENT
- INTERPOLATE
- IRT
- ISSUER
- IT
- ITALIC_
ANGLE - IX
- JAVA_
SCRIPT - JBIG2_
DECODE - JBIG2_
GLOBALS - JPX_
DECODE - JS
- K
- KEYWORDS
- KEY_
USAGE - KIDS
- L
- LAB
- LANG
- LAST
- LAST_
CHAR - LAST_
MODIFIED - LC
- LE
- LEADING
- LEGAL_
ATTESTATION - LENGTH
- LENGTH1
- LENGTH2
- LENGTH3
- LIGHTEN
- LIMITS
- LINEARIZED
- LJ
- LL
- LLE
- LLO
- LOCATION
- LUMINOSITY
- LW
- LZW_
DECODE - LZW_
DECODE_ ABBREVIATION - M
- MAC
- MAC_
EXPERT_ ENCODING - MAC_
ROMAN_ ENCODING - MARK_
INFO - MASK
- MATRIX
- MATTE
- MAX_LEN
- MAX_
WIDTH - MCID
- MDP
- MEASURE
- MEDIA_
BOX - METADATA
- MISSING_
WIDTH - MIX
- MK
- ML
- MM_
TYPE1 - MOD_
DATE - MULTIPLY
- N
- NAME
- NAMES
- NAVIGATOR
- NEED_
APPEARANCES - NEW_
WINDOW - NEXT
- NM
- NONE
- NON_
EFONT_ NO_ WARN - NON_
FULL_ SCREEN_ PAGE_ MODE - NORMAL
- NUMS
- O
- OBJ
- OBJR
- OBJ_STM
- OC
- OCG
- OCGS
- OCMD
- OCPROPERTIES
- OCSP
- OCSPS
- OE
- OFF
- OID
- ON
- OP
- OPEN_
ACTION - OPEN_
TYPE - OPI
- OPM
- OPT
- OP_NS
- ORDER
- ORDERING
- OS
- OUTLINES
- OUTPUT_
CONDITION - OUTPUT_
CONDITION_ IDENTIFIER - OUTPUT_
INTENT - OUTPUT_
INTENTS - OVERLAY
- P
- PA
- PAGE
- PAGES
- PAGE_
LABELS - PAGE_
LAYOUT - PAGE_
MODE - PAINT_
TYPE - PANOSE
- PARAMS
- PARENT
- PARENT_
TREE - PARENT_
TREE_ NEXT_ KEY - PART
- PATH
- PATTERN
- PATTERN_
TYPE - PC
- PDF_
DOC_ ENCODING - PERCEPTUAL
- PERMS
- PG
- PI
- PIECE_
INFO - PO
- POPUP
- PREDICTOR
- PREV
- PRE_
RELEASE - PRINT_
AREA - PRINT_
CLIP - PRINT_
SCALING - PRINT_
STATE - PRIVATE
- PROCESS
- PROC_
SET - PRODUCER
- PROPERTIES
- PROP_
BUILD - PS
- PT_DATA
- PUB_SEC
- PV
- Q
- QUADPOINTS
- R
- RANGE
- RC
- RD
- REASON
- REASONS
- RECIPIENTS
- RECT
- REF
- REFERENCE
- REGISTRY
- REGISTRY_
NAME - RELATIVE_
COLORIMETRIC - RENAME
- REPEAT
- RESOURCES
- RES_
FORK - RGB
- RI
- ROLE_
MAP - ROOT
- ROTATE
- ROWS
- RT
- RUN_
LENGTH_ DECODE - RUN_
LENGTH_ DECODE_ ABBREVIATION - RV
- S
- SA
- SATURATION
- SCHEMA
- SCREEN
- SE
- SEPARATION
- SET_F
- SET_FF
- SHADING
- SHADING_
TYPE - SIG
- SIG_
FLAGS - SIG_REF
- SIZE
- SM
- SMASK
- SMASK_
IN_ DATA - SOFT_
LIGHT - SORT
- SOUND
- SPLIT
- SS
- ST
- STANDARD_
ENCODING - STATE
- STATE_
MODEL - STATUS
- STD_CF
- STEM_H
- STEM_V
- STM_F
- STRUCT_
ELEM - STRUCT_
PARENT - STRUCT_
PARENTS - STRUCT_
TREE_ ROOT - STR_F
- STYLE
- SUBJ
- SUBJECT
- SUBJECT_
DN - SUBTYPE
- SUB_
FILTER - SUPPLEMENT
- SV
- SV_CERT
- SW
- SY
- SYNCHRONOUS
- T
- TARGET
- TEMPLATES
- THREAD
- THREADS
- THREE_
DD - THUMB
- TI
- TILING_
TYPE - TIME_
STAMP - TITLE
- TK
- TM
- TO_
UNICODE - TR
- TR2
- TRANS
- TRANSFORM_
METHOD - TRANSFORM_
PARAMS - TRANSPARENCY
- TRAPPED
- TREF
- TRIM_
BOX - TRUE_
TYPE - TRUSTED_
MODE - TU
- TX
- TYPE
- TYPE0
- TYPE1
- TYPE3
- TYPE1C
- U
- UE
- UF
- UNCHANGED
- UNIX
- URI
- URL
- URL_
TYPE - USAGE
- USER_
UNIT - USE_
CMAP - V
- VE
- VERISIGN_
PPKVS - VERSION
- VERTICES
- VERTICES_
PER_ ROW - VIEW
- VIEWER_
PREFERENCES - VIEW_
AREA - VIEW_
CLIP - VIEW_
STATE - VOLUME
- VP
- VRI
- W
- W2
- WC
- WHITE_
POINT - WIDGET
- WIDTH
- WIDTHS
- WIN
- WIN_
ANSI_ ENCODING - WMODE
- WP
- WS
- X
- XFA
- XHEIGHT
- XOBJECT
- XREF
- XREF_
STM - X_STEP
- Y
- YES
- Y_STEP
- ZA_DB