//// This code is part of Document Solutions for PDF .NET demos.// Copyright (c) MESCIUS inc. All rights reserved.//using System.IO;using System.Drawing;using GrapeCity.Documents.Pdf;using GrapeCity.Documents.Svg;
namespace DsPdfWeb.Demos.Basics{    // This sample shows how to use the SaveAsSvg() method to save a PDF    // page as SVG (scalable vector graphics) image, and how to load    // and render that image on a new PDF page.    // The PDF used as the source was generated by the SvgSpecArt sample,    // but any valid PDF can be used instead.    public class SaveAsSvg    {        public int CreatePDF(Stream stream)        {            var doc = new GcPdfDocument();            var page = doc.NewPage();
            var rc = Common.Util.AddNote(                "We load an existing PDF into a temporary GcPdfDocument, " +                "save its first page as an SVG image to a stream, and then " +                "draw that image on the page of the resulting PDF.",                page);
            // Load a one page document into a temp PDF:            using var fs = File.OpenRead(Path.Combine("Resources", "PDFs", "svg-spec-art.pdf"));            var docSrc = new GcPdfDocument();            docSrc.Load(fs);
            // Save the first page of the loaded PDF as SVG:            using var svgStream = new MemoryStream();            docSrc.Pages[0].SaveAsSvg(svgStream, new SaveAsImageOptions() { BackColor = Color.Transparent });            // PDF pages can also be saved as SVGZ (compressed SVG) using the ToSvgz() method:            // docSrc.Pages[0].ToSvgz();            svgStream.Position = 0;            // Create a GcSvgDocument from the saved SVG so that we can draw it in the resulting PDF:            using var svgDoc = GcSvgDocument.FromStream(svgStream);
            // For illustration purposes we render the SVG with transparent background            // on a rectangle with a custom fill and border:            rc = new RectangleF(0, rc.Bottom, page.Size.Width, page.Size.Height - rc.Bottom);            rc.Inflate(-4f, -4f);            page.Graphics.DrawRectangle(rc, Color.DarkGoldenrod);            page.Graphics.FillRectangle(rc, Color.PaleGoldenrod);            page.Graphics.DrawSvg(svgDoc, rc);
            // Done:            doc.Save(stream);            return doc.Pages.Count;        }    }}