[jira] [Commented] (PDFBOX-1206) PdfToImage no longer works as expected with jdk/java 7; image quality problem

["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 §5)
                
> 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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