Barcode dictionary keys

This page applies to Harlequin v13.1r0 and later; both Harlequin Core and Harlequin MultiRIP

Key	Name	Required	Default	Values
/Background	Array	Optional	No background, i.e., a transparent background	An array of color components appropriate to the color space, specifying a single background color value. If present, this color is used as the background of the barcode and will knock out everything behind. If this is not specified, there will be no background (i.e. transparent) and what has already been painted will show through.
/ColorSpace	Array or Name	Optional	Current PS color space	Use this color space when specifying barcode colors rather than the current PS color space.
/Foreground	Array	Optional	Current PS color.	An array of color components appropriate to the color space, specifying a single foreground color value. If present, this color is used as the foreground of the barcode. If this is not specified, the PS current color will be uses as the foreground color.
/Input	String	Yes		The data to be encoded in the barcode. All strings are encoded using UTF-8 bytes.
/Option1, /Option2, /Option3	Integer	Sometimes	Depends	Option1, Option2, and Option3 are used to provide symbology-specific control values. See Barcode symbologies for values to use for Options.
/Symbology	Name or Integer	Yes	-	Specifies which symbology to render. See Barcode symbologies

Table: Barcode dictionary keys Core values

Key	Type	Required	Default	Values
/HeightProportionalToWidth	Boolean	Optional	true	Applies to 1D & 2D barcodes. If width is adjusted (for any reason), the height will also be adjusted to keep the barcode in proportion. Only applies if a `/TargetWidthHeight` or `/HorizontalModuleWidth` has been specified, otherwise it is effectively ignored. It overrides `/VerticalModuleWidth` and any `Min/Max/Target` height specified although `/TargetWidthHeight` is still used for alignment.
/HorizontalModuleWidth	Integer	Optional	1/72"	Specifies how many horizontal device pixels a barcode module ought to use. Can be used for 1D and 2D barcodes. If /`TargetWidthHeight` width is specified (i.e. non-zero) an error will be raised, and the job will abort. If `/MinTargetWidth` or `/MaxTargetWidth` widths are set, and would be breached if `/HorizontalModuleWidth` is applied, then /`UnableToPixelSnapBehavior` behavior will be invoked.
/MaxWidthHeight	Array	Optional	[ 0, 0 ], no max size	Specifies the maximum allowable size of the barcode in points (1/72"). If not specified, no maximum size is specified. This setting only applies if a `/TargetWidthHeight` or `/HorizontalModuleWidth` or `/VerticalModuleWidth` has been specified, otherwise it is ignored.
/UnableToPixelSnapBehavior	Name	Optional	/Unsnapp ed	If `/PixelSnapping` is true, and the barcode cannot be scaled to meet the requirements of `/HorizontalModuleWidth` , `/VerticalModuleWidth` , `/TargetWidthHeight` , `/MinWidthHeight` , `/MaxWidthHeight` , raise a PS error and abort the job if the value is /`Error` . If /`Nearest` , will use the closest snapped size which will always be larger than `/TargetWidthHeight` and `/MaxWidthHeight` (if specified). If /`Unsnapped` , the barcode will be scaled to fit into `/TargetWidthHeight` precisely, but this will mean that some modules will not be an exact number of device pixels wide or high.
/VerticalModuleWidth	Integer	Optional	1/72"	Specifies how many vertical device pixels a barcode module ought to use. Can be used for 1D and 2D barcodes. If `/TargetWidthHeight` height is specified (i.e. non-zero) an error will be raised, and the job will abort. If `/MinTargetWidth` or `/MaxTargetWidth` heights are set, and would be breached if `/HorizontalModuleWidth` is applied, then /`UnableToPixelSnapBehavior` behavior will be invoked.

Table: Barcode dictionary keys Symbol snapping and size

Key

Type

Required

Default

Values

/HorizontalAlignment

Name object

Optional

/Left

/Left , /Right , /Center

Specify how to horizontally align the barcode in the /TargetWidthHeight bounding box if the target rectangle has been specified.

If no /TargetWidthHeight is specified, then the barcode is aligned around the current point.

If the width is specified as zero, then alignment is done around the current point x.

/VerticalAlignment

Name object

Optional

/Bottom

/Top , /Bottom , /Center

Specify how to vertically align the barcode in the /TargetWidthHeight bounding box if the target rectangle has been specified.

If no /TargetWidthHeight is specified, then the barcode is aligned around the current point.

If the height is specified as zero, then alignment is done around the current point y.

Table: Barcode dictionary keys Symbol alignment

Key

Type

Required

Default

Values

/HorizontalEdgeGrowth

Integer

Optional

0

Expand or contract (erode) bars in the horizontal (X) direction by the specified number of device pixels. A negative value represents erosion, a positive value represents expansion.

Using a large enough negative value that a module would be eroded to less than 1 device pixel will trigger an error. Note that this is edge growth in the current barcode space; if the barcode, or the page in which it is placed, are rotated then the X and Y values may need to be swapped.

/VerticalEdgeGrowth

Integer

Optional

0

Expand or contract (erode) bars in the vertical (Y) direction by the specified number of device pixels. See HorizontalEdgeGrowth for more notes.

NOTE: VerticalEdgeGrowth only applies to 2D barcodes such as QR Codes.

Table: Barcode dictionary keys Edge growth and erosion

Key	Type	Required	Default	Values
/ShowText	Boolean	Optional	false	Show human readable text for data in the symbol. If a character in the data does not have a printable representation in the font selected, then it is not displayed. Note: The barcode operator does not add text to 2D barcodes.
/TextFont	Key	Required if `ShowText` is `true`	None	Selects the font whose name is the Key. The font is selected in the same way as Key is used for the PS operator “selectfont”. If `/ShowText` is `true` , this key must also be set to a valid font.
/TextColor	Array	Optional	Current PS color.	An array of color components appropriate to the color space, specifying a single text color value. If present, this color is used as text color of the barcode. If this is not specified, the PS current color will be used as the text color.
/TextSize	Real	Optional	`1`	The font size of the text in points. Note that the default of `1` is likely to be too small.

Table: Barcode dictionary keys Text properties