Set image meta data before save

Question

I\'m trying to set the metadata of an image on exit from a resize, the property appears to be set but after the save nothing is there.

I\'m pretty sure I\'m doing so

Answer 1

Well, after some tests, this works... But only if property 40091 doesn't exist in the original Image. If it exists, it's not replaced (must admit I don't know why).

 var image = Image.FromFile(@"C:\Tools\test.jpg");
 var propertyItem = createPropertyItem();
 var text = "awe" + char.MinValue;//add \0 at the end of your string
 propertyItem = createPropertyItem();
 propertyItem.Id = 40091;
 propertyItem.Value = Encoding.Unicode.GetBytes(text);//change to Unicode
 propertyItem.Len = propertyItem.Value.Length;
 propertyItem.Type = 1;//it's not type 2 !
 image.SetPropertyItem(propertyItem);
 image.Save(@"C:\Tools\test2.jpg");