// ===========================================================================
// ©2013-2026 WebSupergoo. All rights reserved.
//
// This source code is for use exclusively with the ABCpdf product with
// which it is distributed, under the terms of the license for that
// product. Details can be found at
//
// http://www.websupergoo.com/
//
// This copyright notice must not be deleted and must be reproduced alongside
// any sections of code extracted from this module.
// ===========================================================================
using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
using System.Xml;
using WebSupergoo.ABCpdf14;
using WebSupergoo.ABCpdf14.Objects;
namespace SwfExport {
class Program {
static void Main(string[] args) {
string theSourcePdf = Server.MapPath("MyFolder\\import.pdf");
string theSourceSwf = Server.MapPath("MyFolder\\swfexport.swf");
string theDestSwf = Server.MapPath("MyFolder\\output.swf"); // n.b. 'output.html' needs updating if filename changed.
using (Doc theDoc = new Doc()) {
theDoc.Read(theSourcePdf);
SortedDictionary<int, ImageInfo> images = FindAllImages(theDoc);
ResizeImages(theDoc, images, 48, 48, 75); // make images 48 DPI using quality of 75
theDoc.SaveOptions.Template = theSourceSwf;
theDoc.Save(theDestSwf);
}
}
private static SortedDictionary<int, ImageInfo> FindAllImages(Doc inDoc) {
SortedDictionary<int, ImageInfo> images = new SortedDictionary<int, ImageInfo>();
for (int i = 1; i <= inDoc.PageCount; i++) {
inDoc.PageNumber = i;
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.LoadXml(inDoc.GetText("svg+"));
XmlNamespaceManager nsmgr = new XmlNamespaceManager(xmlDoc.NameTable);
nsmgr.AddNamespace("svg", "http://www.w3.org/2000/svg");
XmlElement root = xmlDoc.DocumentElement;
XmlNodeList nodeList = xmlDoc.SelectNodes("//svg:image", nsmgr);
foreach (XmlNode n in nodeList) {
ImageInfo ii = new ImageInfo(n);
// Discard the visually smaller duplicates.
ImageInfo iiDict;
if (!images.TryGetValue(ii.PixMapId, out iiDict))
images[ii.PixMapId] = ii;
else {
if (iiDict.WidthInPoints < ii.WidthInPoints)
iiDict.WidthInPoints = ii.WidthInPoints;
if (iiDict.HeightInPoints < ii.HeightInPoints)
iiDict.HeightInPoints = ii.HeightInPoints;
}
}
}
return images;
}
private static void ResizeImages(Doc inDoc, SortedDictionary<int, ImageInfo> inImages,
double inDpiHorizontal, double inDpiVertical, int inCompressionQuality)
{
foreach (ImageInfo ii in inImages.Values) {
PixMap pm = inDoc.ObjectSoup[ii.PixMapId] as PixMap;
int newWidth = Math.Max(1, (int)Math.Round(ii.WidthInPoints * inDpiHorizontal / 72));
int newHeight = Math.Max(1, (int)Math.Round(ii.HeightInPoints * inDpiVertical / 72));
if (newWidth < pm.Width || newHeight < pm.Height)
pm.Resize(Math.Min(newWidth, pm.Width), Math.Min(newHeight, pm.Height));
if (pm.BitsPerComponent == 1) {
if (!pm.Compressed)
pm.CompressCcitt();
continue;
}
ColorSpaceType colorSpace = pm.ColorSpaceType;
if (colorSpace == ColorSpaceType.Indexed) {
if (!pm.Compressed)
pm.Compress(); // Flate.
continue;
}
if ((colorSpace != ColorSpaceType.DeviceGray) && (colorSpace != ColorSpaceType.DeviceRGB))
pm.Recolor(new ColorSpace(inDoc.ObjectSoup)); // DeviceRGB.
pm.CompressJpeg(inCompressionQuality);
}
}
}
sealed class ImageInfo {
public double WidthInPoints;
public double HeightInPoints;
public int PixMapId;
public ImageInfo(XmlNode inNode) {
// Image nodes contain lots of useful infomation eg
// <image xlink:href="image.png" width="810" height="400" x="210" y="414" transform="translate(210, 414)
// translate(-210, -414)" pdf_Name="Iabc43" pdf_ObjectID="44" pdf_CTM="810 0 0 400 210 410" pdf_Op="/Iabc43 Do"
// pdf_StreamID="41" pdf_StreamOffset="31" pdf_StreamLength="10" />
this.PixMapId = int.Parse(inNode.Attributes["pdf_ObjectID"].Value);
XmlAttribute at = inNode.Attributes["width"];
this.WidthInPoints = (at == null) ? 0 : double.Parse(at.Value);
at = inNode.Attributes["height"];
this.HeightInPoints = (at == null) ? 0 : double.Parse(at.Value);
}
}
static class Server {
public static string MapPath(string fileName) {
DirectoryInfo di = new DirectoryInfo(Directory.GetCurrentDirectory());
string theBase = di.Parent.Parent.FullName;
return Path.Combine(theBase, fileName);
}
}
}
