Adobe acrobat 7.0.5 sdk 用户手册
Working with PDF Documents
Large Page Sizes in PDF Documents
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Large Page Sizes in PDF Documents
In previous versions of Acrobat, the maximum size of a PDF document was 200 by 200
inches due to the internal use of
inches due to the internal use of
ASFixed
variables for all coordinates.
In Acrobat 7, pages in a PDF document now have a scaling factor associated with them that
allows the same number of
allows the same number of
ASFixed
points to represent feet, yards, meters, hectares or
other measurements.
The value of this scaling factor is per page and can be retrieved in a plug-in using the
PDPageGetUserUnitSize
API. There are no Acrobat JavaScript APIs to access the unit
size information.
Wi re f ra m e D raw i n g
In order to improve the speed of drawing large and complex documents, Acrobat has a new
mode that only draws the strokes of objects as simple, one-unit lines as seen in the figure
below. It does not affect filled shapes or text.
mode that only draws the strokes of objects as simple, one-unit lines as seen in the figure
below. It does not affect filled shapes or text.
You can get and set wireframe mode from a plug-in using the following APIs:
●
AVPageViewGetWireframeDrawing
●
AVPageViewSetWireframeDrawing
There are no Acrobat JavaScript APIs for wireframe drawings.