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https://issues.apache.org/jira/browse/PDFBOX-2917?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14680974#comment-14680974
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John Hewson edited comment on PDFBOX-2917 at 8/11/15 12:05 AM:
---------------------------------------------------------------
Looking at selection.pdf and immo-kurier_arsenal_93x62.pdf, the former appears
correctly with my patch, while the latter doesn't. Both these files contain ICC
profiles whose class is "output", space is "cmyk", version is 2.4.0, and
connection space is "lab". The only difference is that the rendering intent is
"perceptual" for the profile from selection.pdf, while the other profile's
rendering intent is "relative".
Update: Actually Apple's ColorSync claims that the arsenal profile is
"relative" but Java reads it as "perceptual", looking at the profile data, the
header does specific that the profile is perceptual. I don't know what's going
on there.
was (Author: jahewson):
Looking at selection.pdf and immo-kurier_arsenal_93x62.pdf, the former appears
correctly with my patch, while the latter doesn't. Both these files contain ICC
profiles whose class is "output", space is "cmyk", version is 2.4.0, and
connection space is "lab". The only difference is that the rendering intent is
"perceptual" for the profile from selection.pdf, while the other profile's
rendering intent is "relative".
> PDF to Image, faint/dim Images
> ------------------------------
>
> Key: PDFBOX-2917
> URL: https://issues.apache.org/jira/browse/PDFBOX-2917
> Project: PDFBox
> Issue Type: Bug
> Affects Versions: 2.0.0
> Environment: Windows 8.1, jdk1.8.0_51, jre1.8.0_51
> Reporter: Samuil Goranov
> Priority: Trivial
> Labels: images, newbie
> Attachments: PDFBOX-2917-v2.patch,
> PDFBOX-2917__Use_linear_RGB_for_image_color_conversion_to_workaround_JDK_bug.patch,
> saved0.png, screenshot-1.png, selection.pdf
>
>
> {code:title=pdftoimage.java|borderStyle=solid}
> PDDocument document = null;
> File file = new File("F:\\Projects\\java\\pdfbox\\complete.pdf");
> document = PDDocument.load( file );
> try {
> // retrieve image
> BufferedImage bi = new PDFRenderer(document).renderImageWithDPI(
> 0 , 150, ImageType.RGB );
> File outputfile = new File("saved0.png");
> ImageIO.write(bi, "png", outputfile);
> } catch (IOException e) {
> }
> {code}
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