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import java.awt.Color;
import java.awt.Rectangle;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.RandomAccessFile;
import java.lang.reflect.Method;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;
import java.security.AccessController;
import java.security.PrivilegedAction;
import com.jacob.activeX.ActiveXComponent;
import com.jacob.com.ComThread;
import com.jacob.com.Dispatch;
import com.jacob.com.Variant;
import com.lowagie.text.Document;
import com.lowagie.text.DocumentException;
import com.lowagie.text.Element;
import com.lowagie.text.Font;
import com.lowagie.text.FontFactory;
import com.lowagie.text.Image;
import com.lowagie.text.PageSize;
import com.lowagie.text.Phrase;
import com.lowagie.text.pdf.ColumnText;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfWriter;
import com.sun.image.codec.jpeg.JPEGCodec;
import com.sun.image.codec.jpeg.JPEGImageEncoder;
import com.sun.pdfview.PDFFile;
import com.sun.pdfview.PDFPage;
public class PdfUtil {
public static final String WORDSERVER_STRING = "KWPS.Application";
public static final String PPTSERVER_STRING = "KWPP.Application";
public static final String EXECLSERVER_STRING = "KET.Application";
private static final int wdFormatPDF = 17;
private static final int xlTypePDF = 0;
private static final int ppSaveAsPDF = 32;
public PdfUtil() {
}
public static boolean wpsTopdf(String srcFilePath, String pdfFilePath)
throws Exception {
ActiveXComponent pptActiveXComponent = null;
ActiveXComponent workbook = null;
ComThread.InitSTA();
try {
pptActiveXComponent = new ActiveXComponent(WORDSERVER_STRING);
Variant openParams[] = {new Variant(srcFilePath),
new Variant(true), new Variant(true)};
workbook = pptActiveXComponent.invokeGetComponent("Documents")
.invokeGetComponent("Open", openParams);
workbook.invoke("SaveAs", new Variant[]{new Variant(pdfFilePath),
new Variant(wdFormatPDF)});
} catch (Exception e) {
throw e;
} finally {
if (workbook != null) {
workbook.invoke("Close");
workbook.safeRelease();
}
if (pptActiveXComponent != null) {
pptActiveXComponent.invoke("Quit");
pptActiveXComponent.safeRelease();
}
ComThread.Release();
}
return true;
}
public static boolean pptTopdf(String srcFilePath, String pdfFilePath) {
ActiveXComponent pptActiveXComponent = null;
ActiveXComponent workbook = null;
boolean readonly = true;
ComThread.InitSTA();
try {
pptActiveXComponent = new ActiveXComponent(PPTSERVER_STRING);
workbook = pptActiveXComponent.invokeGetComponent("Presentations")
.invokeGetComponent(
"Open",
new Variant[]{new Variant(srcFilePath),
new Variant(readonly)});
workbook.invoke("SaveAs", new Variant[]{new Variant(pdfFilePath),
new Variant(ppSaveAsPDF)});
return true;
} catch (Exception e) {
throw e;
} finally {
if (workbook != null) {
workbook.invoke("Close");
workbook.safeRelease();
}
if (pptActiveXComponent != null) {
pptActiveXComponent.invoke("Quit");
pptActiveXComponent.safeRelease();
}
ComThread.Release();
}
}
public static boolean xlsTopdf(String srcFilePath, String pdfFilePath) {
ActiveXComponent et = null;
Dispatch workbook = null;
workbook = null;
ComThread.InitSTA();
try {
et = new ActiveXComponent(EXECLSERVER_STRING);
et.setProperty("Visible", new Variant(false));
Dispatch workbooks = et.getProperty("Workbooks").toDispatch();
workbook = Dispatch.invoke(
workbooks,
"Open",
1,
new Object[]{srcFilePath, Integer.valueOf(xlTypePDF),
Boolean.valueOf(true)}, new int[1]).toDispatch();
Dispatch.call(workbook, "ExportAsFixedFormat", new Object[]{
Integer.valueOf(xlTypePDF), pdfFilePath});
return true;
} catch (Exception e) {
throw e;
} finally {
if (workbook != null) {
Dispatch.call(workbook, "Close");
workbook.safeRelease();
}
if (et != null) {
et.invoke("Quit");
et.safeRelease();
}
ComThread.Release();
}
}
public static boolean iamgeTopdf(String imagePath, String pdfFilePath)
throws DocumentException, IOException {
File pdfFile = new File(pdfFilePath);
if (pdfFile.exists()) {
throw new FileNotFoundException("pdfFilePath already exists");
}
Document doc = new Document(PageSize.A4, 20, 20, 20, 20);
try {
PdfWriter.getInstance(doc, new FileOutputStream(
pdfFilePath));
doc.open();
doc.newPage();
Image png1 = Image.getInstance(imagePath);
float heigth = png1.getHeight();
float width = png1.getWidth();
int percent = getPercent(heigth, width);
png1.setAlignment(Image.MIDDLE);
png1.setAlignment(Image.TEXTWRAP);
png1.scalePercent(percent + 3);
doc.add(png1);
doc.close();
return true;
} catch (FileNotFoundException e) {
throw e;
} catch (DocumentException e) {
throw e;
} catch (IOException e) {
throw e;
}
}
private static void handleText(PdfWriter writer, String content, String color,
float x, float y, float z) {
PdfContentByte canvas = writer.getDirectContent();
Phrase phrase = new Phrase(content);
if (color != null) {
phrase = new Phrase(content, FontFactory.getFont(
FontFactory.COURIER, 12, Font.NORMAL, new Color(255, 0, 0)));
}
ColumnText.showTextAligned(canvas, Element.ALIGN_UNDEFINED, phrase, x,
y, z);
}
public static int getPercent1(float h, float w) {
int p = 0;
float p2 = 0.0f;
if (h > w) {
p2 = 297 / h * 100;
} else {
p2 = 210 / w * 100;
}
p = Math.round(p2);
return p;
}
private static int getPercent(float h, float w) {
int p = 0;
float p2 = 0.0f;
p2 = 530 / w * 100;
p = Math.round(p2);
return p;
}
public static void pdfTojpg(String pdfFilePath, String imageFilePath, int density)
throws Exception {
ByteBuffer buf = null;
RandomAccessFile raf = null;
FileChannel channel = null;
try {
File file = new File(pdfFilePath);
raf = new RandomAccessFile(file, "r");
channel = raf.getChannel();
buf = channel.map(FileChannel.MapMode.READ_ONLY, 0, channel.size());
PDFFile pdffile = new PDFFile(buf);
int totalpage = pdffile.getNumPages();
System.out.println("总共几页：" + totalpage);
for (int i = 1; i <= totalpage; i++) {
PDFPage page = pdffile.getPage(i);
Rectangle rect = new Rectangle(0, 0, (int) page.getBBox()
.getWidth(), (int) page.getBBox().getHeight());
java.awt.Image img = page.getImage(rect.width * density, rect.height * density,
rect,
null,
true,
true
);
BufferedImage tag = new BufferedImage(rect.width * density,
rect.height * density, BufferedImage.TYPE_INT_RGB);
tag.getGraphics().drawImage(
img.getScaledInstance(
rect.width * density,
rect.height * density,
java.awt.Image.SCALE_SMOOTH
), 0, 0,
rect.width * density,
rect.height * density,
null
);
String filename = file.getName();
filename = filename.substring(0, filename.indexOf("."));
String imge = imageFilePath + filename + "_" + i + ".jpg";
FileOutputStream out = new FileOutputStream(imge);
JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
encoder.encode(tag);
out.close();
}
} catch (Exception e) {
throw e;
} finally {
buf.clear();
channel.close();
raf.close();
unmap(buf);
}
}
public static <T> void unmap(final Object buffer) {
AccessController.doPrivileged(new PrivilegedAction<T>() {
@Override
public T run() {
try {
Method getCleanerMethod = buffer.getClass().getMethod(
"cleaner", new Class[0]);
getCleanerMethod.setAccessible(true);
sun.misc.Cleaner cleaner = (sun.misc.Cleaner) getCleanerMethod
.invoke(buffer, new Object[0]);
cleaner.clean();
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
});
}
public static void main(String[] args) {
try {
pdfTojpg("D:\\school\\0.pdf", "D:\\school\\", 3);
} catch (Exception e) {
e.printStackTrace();
}
}
}
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