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// For complete examples and data files, please go to https://github.com/groupdocs-annotation/GroupDocs.Annotation-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>();

// Distance annotation
AnnotationInfo distanceAnnotationforwords = new AnnotationInfo
{
    AnnotationPosition = new Point(852.0, 287.0),
    Box = new Rectangle(248f, 287f, 115f, 25f),
    PageNumber = 0,
    PenColor = 1201033,
    PenStyle = 0,
    PenWidth = 1,
    SvgPath = "M248.73201877934272,295.5439436619718 l115.28309859154929,-4.192112676056338",
    Text = "\r\nAnonym A.: 115px",
    Type = AnnotationType.Distance,
    CreatorName = "Anonym A."
};
// Add annotation to list
annotations.Add(distanceAnnotationforwords);
                
// Export annotation and save output file
CommonUtilities.SaveOutputDocument(inputFile, annotations, DocumentType.Words);