SetOpacity
Sets annotation opacity.
Syntax
expression.SetOpacity(value);
expression - A variable that represents a ApiBaseAnnotation class.
Parameters
| Name | Required/Optional | Data type | Default | Description |
|---|---|---|---|---|
| value | Required | percentage | The opacity value from 0 (transparent) to 100 (opaque). |
Returns
boolean
Example
Make an annotation transparent or opaque in a PDF.
// Adjust the transparency level of an annotation in a PDF.
// Control how solid or see-through an annotation appears in a PDF.
let doc = Api.GetDocument();
let squareAnnot = Api.CreateSquareAnnot([10, 10, 160, 32]);
let page = doc.GetPage(0);
page.AddObject(squareAnnot);
squareAnnot.SetFillColor(Api.RGB(255, 0, 0));
squareAnnot.SetOpacity(50);