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Graphic Attribute Values
You can apply various attributes to graphics in Arbortext Editor using the Modify Attributes window.
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The options in this window are DTD-dependent.
For Arbortext Editor to apply attribute values to a graphic, you must first provide one of the following:
• Filename — The file name of the graphic.
• Entity Name — The entity name declared in the document for the graphic file.
The following table describes several possible graphic attributes.
Attribute
Description
processor
The name of the graphic processor used to edit graphics. On Windows, any value is accepted because a graphic processor link is not available in Windows.
magnification
A positive number (zero or greater) representing a percentage. For example, Arbortext Editor interprets a value of 300 in this field as 300%, or three times the original size.
If magnification is enabled, scalefit is ignored.
resolution
A positive number (zero or greater) indicating the graphic's design resolution (the resolution at which it was created) in dots per inch (dpi). For example, Arbortext Editor interprets a value of 300 in this field as 300 dpi.
Vertical offset amount
A positive or negative amount. Positive amounts offset upward relative to the text baseline. Negative values offset downward. You can use regular FOSI size/distance values. Enter a number followed by a unit of measurement (for example, 3pi, 35mm-1pt, 0.45in + 2pt, or 1cm). Typically, either the vertical offset amount or vertical offset percent element is defined in a DTD. If your DTD defines both, and both are set in the window, vertical offset percent is given priority.
Vertical offset percent
A positive or negative integer. The percentage is based on the height of the graphic (a setting of 50 would equal one half, or 50%, of the height of the graphic). Positive percentages offset up, relative to the text baseline. Negative percentages offset down. Typically, either the vertical offset amount or vertical offset percent element is defined in a DTD. If your DTD defines both, and both are set in the window, vertical offset percent is given priority.
Cropping width and Cropping height
A number followed by a unit of measurement indicating the height or width of the graphic to be cropped. Cropping dimensions apply to the graphic's unscaled size. Typically, you crop a graphic before you scale it.
Cropping left lower X coordinate
A number followed by a unit of measurement indicating the horizontal distance from the lower left corner of the graphic to the lower left corner of the graphic to be cropped. Cropping coordinates apply to the graphic's unscaled size.
Cropping left lower Y coordinate
A number followed by a unit of measurement indicating the vertical distance from the lower left corner of the graphic to the lower left corner of the graphic to be cropped. Cropping coordinates apply to the graphic's unscaled size.
scalefit
scalefit acts as an alternative to magnification. When enabled (set to a value of 1), Arbortext Editor calculates a magnification factor to size the image (after cropping) to fit the dimensions specified by reproDepth or reproWidth.
If you enable scalefit, set magnification to 0. If magnification is enabled, scalefit is ignored.
reproDepth and reproWidth
A number followed by a unit of measurement indicating the height or width within which the graphic is scaled to fit.
alt
Alternate text that screen readers can read to improve accessibility.
You can configure an Arbortext Styler stylesheet to output this attribute in tagged PDF (via PTC ALD engine) and HTML outputs. Refer to Alternate Text Support for Graphics for information.