Am 13.09.2015 um 04:54 schrieb Troy Smith:
Hi,
I'm trying to create an image for each page of a pdf. I'm getting an out
of heap space error, usually when creating the image of the second page.
The code I'm using is below. I may be doing something braindead, but I'm
not seeing it. Any advice or thoughts?
I'm able to display it with -Xmx4g option in PDFDebugger. Your code may
require even more, because you're also creating a 300dpi image.
Page 2 is huge. It has an image that has a size of almost 5MB compressed.
Tilman
A link to a .pdf that produces this problem:
https://www.dropbox.com/s/osw235wyvqp0kxi/test.pdf?dl=0
I'm using pdfbox-app-2.0.0-20150911.224202-1643.jar.
Best regards,
Troy
import java.awt.image.BufferedImage;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import javax.imageio.ImageIO;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.PDPage;
import org.apache.pdfbox.rendering.PDFRenderer;
import org.apache.pdfbox.rendering.ImageType;
public class ImageTest{
public static void main( String [] args ) throws Exception{
String pdfFile = args[0];
PDDocument doc;
String imageDocPrefix = pdfFile.substring(0,pdfFile.length()-4);
File pdfF = new File(pdfFile);
BufferedImage bim;
String name;
File out;
try{
doc = PDDocument.load(pdfF);
PDFRenderer pdfRenderer = new PDFRenderer(doc);
for (int page = 0; page < doc.getNumberOfPages(); ++page){
System.out.println("Testing..." + page);
bim = pdfRenderer.renderImageWithDPI(page, 300, ImageType.RGB);
name = imageDocPrefix +"_"+ String.format("%04d",page) +".png";
out = new File(name);
ImageIO.write(bim, "PNG", out);
}
doc.close();
}
catch(Exception e){
System.err.println("error writing images from pdf:" + pdfFile + ":" + e);
}
}
}
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