//// This code is part of Document Solutions for Imaging demos.// Copyright (c) MESCIUS inc. All rights reserved.//using System.IO;using System.Drawing;using GrapeCity.Documents.Drawing;using GrapeCity.Documents.Text;using GrapeCity.Documents.Imaging;using GCTEXT = GrapeCity.Documents.Text;using GCDRAW = GrapeCity.Documents.Drawing;
namespace DsImagingWeb.Demos{    // This sample demonstrates how to add a text watermark    // to an image. The image is rendered using its native    // resolution on a GcBitmap, then the watermark text    // is drawn on top using a semitransparent color.    // The resulting bitmap with the added watermark    // can be saved to any of the supported image formats.    public class Watermark    {        public GcBitmap GenerateImage(Size pixelSize, float dpi, bool opaque, string[] sampleParams = null)        {            var Inch = dpi;            var bmp = new GcBitmap(pixelSize.Width, pixelSize.Height, opaque, dpi, dpi);            using (var g = bmp.CreateGraphics(Color.LightGray))            using (var image = GCDRAW.Image.FromFile(Path.Combine("Resources", "Images", "reds.jpg")))            {                var rc = new RectangleF((pixelSize.Width - image.Width) / 2, (pixelSize.Height - image.Height) / 2, image.Width, image.Height);                g.DrawImage(image, rc, null, ImageAlign.Default);
                g.DrawString(                    "Watermark",                    new TextFormat()                    {                        Font = GCTEXT.Font.FromFile(Path.Combine("Resources", "Fonts", "FreeSansBold.ttf")),                        FontSize = Inch,                        ForeColor = Color.FromArgb(128, Color.Yellow),
                    },                    rc, TextAlignment.Center, ParagraphAlignment.Center, false);            }            return bmp;        }    }}