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Show/hide annotationskeyboard_arrow_down

Show and hide existing annotations

By default, PDFViewCtrl shows all annotations on PDF document. If you want to hide a particular annotation on PDFViewCtrl, or hide all annotations on PDFViewCtrl, you can hide annotations as follows:

linkShow and hide one annotation

To show a hidden annotation in PDFViewCtrl, call showAnnotation(Annot):

public static void showAnnotation(PDFViewCtrl pdfViewCtrl, Annot annot, int annotPageNum) {
  pdfViewCtrl.showAnnotation(annot);
  pdfViewCtrl.update(annot, annotPageNum);
}

To hide an annotation in PDFViewCtrl, call hideAnnotation(Annot).

public static void hideAnnotation(PDFViewCtrl pdfViewCtrl, Annot annot, int annotPageNum) {
  pdfViewCtrl.hideAnnotation(annot);
  pdfViewCtrl.update(annot, annotPageNum);
}
After hide and show an annotation in PDFViewCtrl, You must call update to redraw the area covered with the given annotation.

linkShow and hide all annotations

Alternatively, you can show/hide all annotations in PDFViewCtrl by calling setDrawAnnotations(boolean). This method toggles the visibility of annotations and form fields.

For example, disabling all annotations and form fields from rendering:

try {
    pdfViewCtrl.setDrawAnnotations(false);
    pdfViewCtrl.update(true);
} catch (PDFNetException e) {
    e.printStackTrace();
}
After toggling annotation and form fields visibility in PDFViewCtrl, You must call update to redraw the pdf content.

Get the answers you need: Support

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