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// Copyright (C) 2002-2025, Open Design Alliance (the "Alliance"). 
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//   
//   This application incorporates Open Design Alliance software pursuant to a license 
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// Entries in the catalog, PDFDictionary)

#ifndef _PDF_DICT_KEYS_A_
#define _PDF_DICT_KEYS_A_(KEYNAME, KEYTYPE)
#endif

_PDF_DICT_KEYS_A_(Type     , PDFName)       //(Optional) The type of PDF object that this dictionary describes; must be Measure for a measure dictionary.
_PDF_DICT_KEYS_A_(Subtype  , PDFName)       //(Optional) A name specifying the type of coordinate system to use for measuring. Default value : RL, which specifies a rectilinear coordinate system
_PDF_DICT_KEYS_A_(R        , PDFBaseString) //(Required) A text string expressing the scale ratio of the drawing in the region corresponding to this dictionary.
_PDF_DICT_KEYS_BF_(X       , PDFArray)      //(Required) A number format array for measurement of change along the x axis and, if Y is not present, along the y axis as well.The first element in the array contains the
//scale factor for converting from default user space units to the largest units in the measuring coordinate system along that axis.
_PDF_DICT_KEYS_BF_(Y       , PDFArray)      //(Required when the x and y scales have different units or conversion factors) A number format array for measurement of change along the y axis.
_PDF_DICT_KEYS_BF_(D       , PDFArray)      //(Required)A number format array for measurement of distance in any direction. The first element in the array specifies the conversion to the largest distance unit
//from units represented by the first element in X.
_PDF_DICT_KEYS_BF_(A       , PDFArray)      //(Required) A number format array for measurement of area. The first element in the array specifies the conversion to the largest area unit from units represented by the
//first element in X, squared.
_PDF_DICT_KEYS_BF_(T       , PDFArray)      //(Optional) A number format array for measurement of angles. The first element in the array specifies the conversion to the largest angle unit from degrees.
_PDF_DICT_KEYS_BF_(S       , PDFArray)      //(Optional) A number format array for measurement of the slope of a line. The first element in the array specifies the conversion to the largest slope unit from units
//represented by the first element in Y divided by the first element in X.
_PDF_DICT_KEYS_BF_(O       , PDFArray)      //(Optional) An array of two numbers specifying the origin of the measurement coordinate system in default user space coordinates.
_PDF_DICT_KEYS_A_(CYX      , PDFNumber)     //(Optional; meaningful only when Y is present)
///Options for geospatial (PDF 2.0)
_PDF_DICT_KEYS_A_(Bounds   , PDFArray)      //(Optional; PDF 2.0) An array of numbers that shall be taken pairwise to define a series of points that describes the bounds of an area for which geospatial transformations are valid.
_PDF_DICT_KEYS_A_(GCS      , PDFDictionary) //(Required; PDF 2.0) A geographic or projected coordinate system dictionary)
_PDF_DICT_KEYS_A_(DCS      , PDFDictionary) //(Optional; PDF 2.0) A projected or geographic coordinate system that shall be used for the display of position values, such as latitude and longitude.
_PDF_DICT_KEYS_A_(PDU      , PDFArray)      //(Optional; PDF 2.0) Preferred Display Units. An array of three names that identify in order a linear display unit, an area display unit, and an angular display unit.
_PDF_DICT_KEYS_A_(GPTS     , PDFArray)      //(Required; PDF 2.0) An array of numbers that shall be taken pairwise, defining points in geographic space as degrees of latitude and longitude, respectively when defining a geographic coordinate system.
_PDF_DICT_KEYS_A_(LPTS     , PDFArray)      //(Optional in pdf reference, but required in real; PDF 2.0) An array of numbers that shall be taken pairwise to define points in a 2D unit square.
_PDF_DICT_KEYS_A_(PCSM     , PDFArray)      //(Optional; PDF 2.0) A 12-element transformation matrix of real numbers, defining the transformation from XObject position coordinates to projected coordinate system.

#undef _PDF_DICT_KEYS_A_