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// For complete examples and data files, please go to https://github.com/groupdocsmetadata/GroupDocs_Metadata_NET
// initialize JpegFormat
JpegFormat jpegFormat = new JpegFormat(Common.MapSourceFilePath(filePath));
 
// get EXIF data
JpegExifInfo exif = (JpegExifInfo)jpegFormat.GetExifInfo();
if (exif == null)
{
    // initialize EXIF data if null
    exif = new JpegExifInfo();
}
 
// set artist
exif.Artist = "Usman";
// set make
exif.Make = "ABC"; 
// set model
exif.Model = "S120"; 
// set the name of the camera's owner
exif.CameraOwnerName = "Owner"; 
// set description
exif.ImageDescription = "sample description";

// update EXIF data
jpegFormat.SetExifInfo(exif);

// commit changes
jpegFormat.Save(Common.MapDestinationFilePath(filePath));