LIBMAS/Data/PngFileType.cs

using System.Drawing;
using System.IO;

namespace PaintDotNet
{
    public sealed class PngFileType
        : InternalFileType
    {
        public PngFileType()
            : base("PNG", FileTypeFlags.SupportsLoading | FileTypeFlags.SupportsSaving, new string[] { ".png" })
        {
        }

        public override Document OnLoad(Stream input)
        {
            using (Image image = PdnResources.LoadImage(input))
            {
                Document document = Document.FromImage(image);
                return document;
            }
        }

    }
}