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Creating Layered PDFs with Escape Calls to the PDF Converter Printer
The PDF format allows creating groups of mutually exclusive layers where showing one layer will automatically hide the other. These are called radio-button groups and defined using the RBGroups PDF keyword. One can also define which layers are visible by default and which are hidden, for example: /RBGroups [[ 11 0 R 13 0 R]] /ON[ 11 0 R] /OFF [13 0 R] indicates that layers 11 and 13 are grouped and that layer 11 is visible by default whereas 13 is invisible.
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