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Posted to dev@pdfbox.apache.org by "Armando Singer (Created) (JIRA)" <ji...@apache.org> on 2012/01/10 02:53:40 UTC
[jira] [Created] (PDFBOX-1206) PdfToImage no longer works as
expected with jdk/java 7; image quality problem
PdfToImage no longer works as expected with jdk/java 7; image quality problem
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Key: PDFBOX-1206
URL: https://issues.apache.org/jira/browse/PDFBOX-1206
Project: PDFBox
Issue Type: Bug
Components: PDModel
Affects Versions: 1.6.0, 1.7.0
Environment: All (tested on OS X and Solaris but believe it affects all platforms), tested java 7 update 1 & update 2
Reporter: Armando Singer
I've done a extensive testing of pdfbox under the new Java 7, update 1 & update 2 releases, and am noticing
severe image quality issues when converting a pdf to an image.
Attached is the same pdf turned converted to an image under Java 6, then again with Java 7
with the same code. The Java 7 version looks pretty bad.
This is with jdk 1.7 update 1 & 2 (for solaris x64, running headless, and OS X running Java 7 preview update 2 with default with no addition vm args to the default java command). I've also tested against
the latest code in svn (the images below are from the most current version).
The good image below is from a recent version of the jdk 1.6 (and it has always looked good
on at least jdk1.5+).
To test, I used code like this:
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.PDPage;
public final class PdfToImageTest {
public static BufferedImage toBufferedImage(final String pdfFile, final int resolution)
throws IOException {
PDDocument document = null;
try {
document = PDDocument.load(pdfFile);
final PDPage page = (PDPage) document.getDocumentCatalog().getAllPages().get(0);
final BufferedImage result = page.convertToImage(BufferedImage.TYPE_INT_ARGB, resolution);
return result;
} finally {
if (document != null) {
document.close();
}
}
}
public static void main (String[] args) throws IOException {
ImageIO.write(toBufferedImage(args[0], 108), "png", new File(args[1]));
}
}
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[jira] [Commented] (PDFBOX-1206) PdfToImage no longer works as
expected with jdk/java 7; image quality problem
Posted by "Armando Singer (Commented) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/PDFBOX-1206?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13183007#comment-13183007 ]
Armando Singer commented on PDFBOX-1206:
----------------------------------------
I can't attach files--the bug tracker is reporting an error. So the sample files and test class can be pulled at the following urls:
http://s1.paperculture.com/img/PdfToImageTest.class
http://s1.paperculture.com/img/convertToImage.pdf
http://s1.paperculture.com/img/convertToImage.png
http://s1.paperculture.com/img/convertToImage-jdk7.png
I Grant license to ASF for inclusion in ASF works (as per the Apache License ยง5)
> PdfToImage no longer works as expected with jdk/java 7; image quality problem
> -----------------------------------------------------------------------------
>
> Key: PDFBOX-1206
> URL: https://issues.apache.org/jira/browse/PDFBOX-1206
> Project: PDFBox
> Issue Type: Bug
> Components: PDModel
> Affects Versions: 1.6.0, 1.7.0
> Environment: All (tested on OS X and Solaris but believe it affects all platforms), tested java 7 update 1 & update 2
> Reporter: Armando Singer
> Labels: convertToImage, image
>
> I've done a extensive testing of pdfbox under the new Java 7, update 1 & update 2 releases, and am noticing
> severe image quality issues when converting a pdf to an image.
> Attached is the same pdf turned converted to an image under Java 6, then again with Java 7
> with the same code. The Java 7 version looks pretty bad.
> This is with jdk 1.7 update 1 & 2 (for solaris x64, running headless, and OS X running Java 7 preview update 2 with default with no addition vm args to the default java command). I've also tested against
> the latest code in svn (the images below are from the most current version).
> The good image below is from a recent version of the jdk 1.6 (and it has always looked good
> on at least jdk1.5+).
> To test, I used code like this:
> import java.awt.image.BufferedImage;
> import java.io.File;
> import java.io.IOException;
> import javax.imageio.ImageIO;
> import org.apache.pdfbox.pdmodel.PDDocument;
> import org.apache.pdfbox.pdmodel.PDPage;
> public final class PdfToImageTest {
> public static BufferedImage toBufferedImage(final String pdfFile, final int resolution)
> throws IOException {
> PDDocument document = null;
> try {
> document = PDDocument.load(pdfFile);
> final PDPage page = (PDPage) document.getDocumentCatalog().getAllPages().get(0);
> final BufferedImage result = page.convertToImage(BufferedImage.TYPE_INT_ARGB, resolution);
> return result;
> } finally {
> if (document != null) {
> document.close();
> }
> }
> }
> public static void main (String[] args) throws IOException {
> ImageIO.write(toBufferedImage(args[0], 108), "png", new File(args[1]));
> }
> }
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