/// <summary>
/// Remvoes EXIF properties from an image.
/// </summary>
/// <param name="inputPath">file path of original image</param>
/// <param name="outputPath">file path of modified image</param>
/// <param name="exifTags">tags to remove</param>
public static void RemoveExifData(string inputPath, string outputPath, IEnumerable <ExifTag> exifTags)
{
// minimally load image
Image image;
using (ExifReader.LoadImage(inputPath, out image))
{
using (image)
{
ExifWriter.RemoveExifData(image, exifTags);
image.Save(outputPath);
}
}
}
/// <summary>
/// Adds an EXIF property to an image.
/// </summary>
/// <param name="image"></param>
/// <param name="property"></param>
public static void AddExifData(Image image, ExifProperty property)
{
if (image == null)
{
throw new ArgumentNullException("image");
}
if (property == null)
{
return;
}
PropertyItem propertyItem;
// The .NET interface for GDI+ does not allow instantiation of the
// PropertyItem class. Therefore one must be stolen off the Image
// and repurposed. GDI+ uses PropertyItem by value so there is no
// side effect when changing the values and reassigning to the image.
if (image.PropertyItems == null || image.PropertyItems.Length < 1)
{
propertyItem = ExifWriter.CreatePropertyItem();
}
else
{
propertyItem = image.PropertyItems[0];
}
propertyItem.Id = (int)property.Tag;
propertyItem.Type = (short)property.Type;
Type dataType = ExifDataTypeAttribute.GetDataType(property.Tag);
propertyItem.Value = ExifEncoder.ConvertData(dataType, property.Type, property.Value);
propertyItem.Len = propertyItem.Value.Length;
// This appears to not be necessary
ExifWriter.RemoveExifData(image, property.Tag);
image.SetPropertyItem(propertyItem);
}
/// <summary>
/// Remvoes EXIF properties from an image.
/// </summary>
/// <param name="image"></param>
/// <param name="exifTags">tags to remove</param>
public static void RemoveExifData(Image image, params ExifTag[] exifTags)
{
ExifWriter.RemoveExifData(image, (IEnumerable <ExifTag>)exifTags);
}
/// <summary>
/// Remvoes EXIF properties from an image.
/// </summary>
/// <param name="inputPath">file path of original image</param>
/// <param name="outputPath">file path of modified image</param>
/// <param name="exifTags">tags to remove</param>
public static void RemoveExifData(string inputPath, string outputPath, params ExifTag[] exifTags)
{
ExifWriter.RemoveExifData(inputPath, outputPath, (IEnumerable <ExifTag>)exifTags);
}
