2019.2

FLOAT bottom,
FLOAT right,
FLOAT top
)
left
Distance in inches of the left limit of the region from the left edge of the /CropBox.
bottom
Distance in inches of the bottom limit of the region from the bottom edge of the /CropBox.
right
Distance in inches of the right limit of the region from the left edge of the /CropBox.
top
Distance in inches of the top limit of the region from the bottom edge of the /CropBox.
Return value
A string containing the text extracted from the specified region.
Limitations
l No Unicode support.
l A word is extracted only if it fits entirely in the region.
l Empty lines are not supported.
l A maximum of 4096 chars is returned.
l A word can contain a maximum of 128 chars.
l Horizontal moveto is not considered as a space.
l /CropBox size is not taken into account (an object whose left is at 144 is considered to be
2 inches from the edge even if the /CropBox starts at 72).
l Only horizontal text is supported; vertical or rotated text is undefined.
l Rotated pages are unsupported.
l /UserUnit is not supported.
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