Changing OCGs

Examples in response to questions such as:

• Click How to set the OCG state of an existing PDF?

• Click How to change the order of Optional Content Groups?

 Also known as PDF layers, optional content groups (OCG) allow for graphics and text to be selectively made visible or invisible dynamically. Content that belongs to a certain group is visible when the group is on, and invisible when the group is off.

addocg

##GITHUB:https://github.com/itext/i7js-examples/blob/develop/src/main/java/com/itextpdf/samples/sandbox/stamper/AddOCG.java##

##GITHUB:https://github.com/itext/i7ns-samples/blob/develop/itext/itext.samples/itext/samples/sandbox/stamper/AddOCG.cs##

changeocg

##GITHUB:https://github.com/itext/i7js-examples/blob/develop/src/main/java/com/itextpdf/samples/sandbox/stamper/ChangeOCG.java##

##GITHUB:https://github.com/itext/i7ns-samples/blob/develop/itext/itext.samples/itext/samples/sandbox/stamper/ChangeOCG.cs##

changeocgorder

##GITHUB:https://github.com/itext/i7js-examples/blob/develop/src/main/java/com/itextpdf/samples/sandbox/stamper/ChangeOCGOrder.java##

##GITHUB:https://github.com/itext/i7ns-samples/blob/develop/itext/itext.samples/itext/samples/sandbox/stamper/ChangeOCGOrder.cs##

Resources

hello.pdf
ocg.pdf

Results

cmp_add_ocg.pdf

cmp_change_ocg.pdf

cmp_change_ocg_order.pdf