I am trying to convert a colored image or not image PDF file in to a multi-page tiff file. For that i have written some code but this code covert PDF file to tiff file which is black and white. I need the tiff file should be in colored. So what changes should i make so that i can get a colored tiff file.
public void btnConvertToTiffActionPerformed(ActionEvent e) throws InterruptedException {
final double FAX_RESOLUTION = 200.0;
final double PRINTER_RESOLUTION = 300.0;
// This compression type may be wpecific to JAI ImageIO Tools
final String COMPRESSION_TYPE_GROUP4FAX = "CCITT T.6";
Iterator<ImageWriter> iterator = ImageIO.getImageWritersByFormatName("tiff");
if (!iterator.hasNext()) {
System.out.println(
"ImageIO missing required plug-in to write TIFF files. " +
"You can download the JAI ImageIO Tools from: " +
"https://jai-imageio.dev.java.net/");
return;
}
boolean foundCompressionType = false;
for(String type : iterator.next().getDefaultWriteParam().getCompressionTypes()) {
if (COMPRESSION_TYPE_GROUP4FAX.equals(type)) {
foundCompressionType = true;
break;
}
}
if (!foundCompressionType) {
System.out.println(
"TIFF ImageIO plug-in does not support Group 4 Fax " +
"compression type ("+COMPRESSION_TYPE_GROUP4FAX+")");
return;
}
Document document = new Document();
try {
document.setFile(file.getAbsolutePath());
} catch (PDFException ex) {
System.out.println("Error parsing PDF document " + ex);
} catch (PDFSecurityException ex) {
System.out.println("Error encryption not supported " + ex);
} catch (FileNotFoundException ex) {
System.out.println("Error file not found " + ex);
} catch (IOException ex) {
System.out.println("Error handling PDF document " + ex);
}
try {
// save page caputres to file.
File file = new File("D:\\pdfbox\\imageCapture.tif");
ImageOutputStream ios = ImageIO.createImageOutputStream(file);
ImageWriter writer = ImageIO.getImageWritersByFormatName("tiff").next();
writer.setOutput(ios);
// Paint each pages content to an image and write the image to file
for (int i = 0; i < document.getNumberOfPages(); i++) {
final double targetDPI = PRINTER_RESOLUTION;
float scale = 1.0f;
float rotation = 0f;
// Given no initial zooming, calculate our natural DPI when
// printed to standard US Letter paper
PDimension size = document.getPageDimension(i, rotation, scale);
double dpi = Math.sqrt((size.getWidth()*size.getWidth()) +
(size.getHeight()*size.getHeight()) ) /
Math.sqrt((8.5*8.5)+(11*11));
// Calculate scale required to achieve at least our target DPI
if (dpi < (targetDPI-0.1)) {
scale = (float) (targetDPI / dpi);
size = document.getPageDimension(i, rotation, scale);
}
int pageWidth = (int) size.getWidth();
int pageHeight = (int) size.getHeight();
int[] cmap = new int[] { 0xFF000000, 0xFFFFFFFF };
IndexColorModel cm = new IndexColorModel(8, cmap.length, cmap, 0, true, Transparency.OPAQUE, DataBuffer.TYPE_BYTE);
BufferedImage image = new BufferedImage(
pageWidth, pageHeight, BufferedImage.TYPE_BYTE_BINARY, cm);
Graphics g = image.createGraphics();
document.paintPage(
i, g, GraphicsRenderingHints.PRINT, Page.BOUNDARY_CROPBOX,
rotation, scale);
g.dispose();
// capture the page image to file
IIOImage img = new IIOImage(image, null, null);
ImageWriteParam param = writer.getDefaultWriteParam();
param.setCompressionMode(param.MODE_EXPLICIT);
param.setCompressionType(COMPRESSION_TYPE_GROUP4FAX);
if (i == 0) {
writer.write(null, img, param);
}
else {
writer.writeInsert(-1, img, param);
}
image.flush();
}
ios.flush();
ios.close();
writer.dispose();
}
catch(IOException ex) {
System.out.println("Error saving file " + ex);
ex.printStackTrace();
}
// clean up resources
document.dispose();
System.out.println("Done");
}
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.*;
import javax.imageio.metadata.IIOMetadata;
import javax.imageio.stream.ImageOutputStream;
import javax.swing.*;
import javax.swing.border.EmptyBorder;
import javax.swing.filechooser.FileNameExtensionFilter;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.rendering.ImageType;
import org.apache.pdfbox.rendering.PDFRenderer;
public void convertToTiff() {
try {
PDDocument document = PDDocument.load(pdf-file path);
// save page caputres to file.
File file = new File(D:\\pdf);
ImageOutputStream ios = ImageIO.createImageOutputStream(file);
ImageWriter writer = ImageIO.getImageWritersByFormatName("tiff").next();
writer.setOutput(ios);
PDFRenderer pdfRenderer = new PDFRenderer(document);
ImageType imageType = ImageType.RGB;//This can we Gray,ARGB,Binary
int pageCount = document.getNumberOfPages();
BufferedImage[] images = new BufferedImage[pageCount];
writer.setOutput(ios);
ImageWriteParam params = writer.getDefaultWriteParam();
params.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
// Compression: None, PackBits, ZLib, Deflate, LZW, JPEG and CCITT
// variants allowed
params.setCompressionType(LZW);
writer.prepareWriteSequence(null);
// System.out.println(document.getNumberOfPages());
for (int page = 0; page < document.getNumberOfPages(); page++) {
BufferedImage image = pdfRenderer.renderImageWithDPI(page,
Integer.parseInt("300", imageType);
images[page] = image;
IIOMetadata metadata = writer.getDefaultImageMetadata(new ImageTypeSpecifier(image), params);
writer.writeToSequence(new IIOImage(image, null, metadata), params);
}
// clean up resources
ios.flush();
ios.close();
writer.dispose();
} catch (Exception ex) {
JOptionPane.showMessageDialog(contentPane, ex.getMessage()+"\n"+ ex.getCause());
}
}