Filtering annotations by type on saving document Leave feedback
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To save only annotations of specific types, follow these steps:
- Instantiate the Annotator class. Specify the input document path or stream.
- Instantiate the SaveOptions class. Set the AnnotationType property by specifying annotation type(s) to save.
- Call the Save method with the output document path or stream. Specify the SaveOptions class as a parameter.
The following code snippet shows how to save only pages with specific annotation type:
using (Annotator annotator = new Annotator(“input.pdf”))
{
AreaAnnotation area = new AreaAnnotation()
{
Box = new Rectangle(100, 100, 100, 100),
BackgroundColor = 65535,
PageNumber = 1
};
EllipseAnnotation ellipse = new EllipseAnnotation()
{
Box = new Rectangle(100, 100, 100, 100),
BackgroundColor = 123456,
PageNumber = 1
};
annotator.Add(new List
//Result file will contains only ellipse annotations.
annotator.Save("result.pdf" new SaveOptions { AnnotationTypes = AnnotationType.Ellipse});
}
If you need to save annotations of several types, use the OR operator ("|").
The following code snippet shows how to save pages with specific annotation types:
using (Annotator annotator = new Annotator("input.pdf"))
{
...
annotator.Save("result.pdf" new SaveOptions { AnnotationTypes = AnnotationType.Ellipse|AnnotationType.Watermark});
}
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