// For complete examples and data files, please go to https://github.com/atirtahirgroupdocs/GroupDocs.Search-for-.NET
// Get input file stream
Stream inputFile = new FileStream(CommonUtilities.MapSourceFilePath(filePath), FileMode.Open, FileAccess.ReadWrite);
// Initialize list of AnnotationInfo
List<AnnotationInfo> annotations = new List<AnnotationInfo>();
// Initialize text annotation.
AnnotationInfo textAnnotation = new AnnotationInfo
{
PageNumber = 1,
AnnotationPosition = new Point(3, 3),
FieldText = "Hello!"
};
// Add annotation to list
annotations.Add(textAnnotation);
// Export annotation and save output file
CommonUtilities.SaveOutputDocument(inputFile, annotations, DocumentType.Cells);