How to highlight form fields and set form field highlight color?

The UIExtensionsManager.enableFormHighlight() interface is provided to set whether to enable highlighting the links in PDF documents. By default, the form fields will be highlighted. If you do not want to highlight form fields, please set the parameter to “false” as follows:

// Assume you have already Initialized a UIExtensionsManager object 
uiExtensionsManager.enableFormHighlight(false);

The UIExtensionsManager.setFormHighlightColor() interface is used to set the highlight color. Please make sure you have not disabled highlighting links. Following is a sample for calling this API:

// Set the highlight color to blue.
uiExtensionsManager.setFormHighlightColor(0x4b0000ff);