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https://issues.apache.org/jira/browse/PDFBOX-5553?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17650070#comment-17650070
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Tilman Hausherr commented on PDFBOX-5553:
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No, it's likely a bug on our side. I need to do some research first on why this
code line is there. This code line, which confused me somewhat yesterday, means
"don't invert if there is an indexed colorspace", and I wonder why.
> PDFRenderer resulting image has black background
> ------------------------------------------------
>
> Key: PDFBOX-5553
> URL: https://issues.apache.org/jira/browse/PDFBOX-5553
> Project: PDFBox
> Issue Type: Bug
> Components: Rendering
> Affects Versions: 2.0.27
> Reporter: Joseph Jezerinac
> Priority: Major
> Attachments: black-background.pdf
>
>
> Using the attached PDF as the pdf, the resulting png has a black ground using
> the code below. Opening this PDF in reader or chrome etc., the background is
> white.
> {code:java}
> PDDocument pdDocument = PDDocument.load(pdf,
> MemoryUsageSetting.setupMixed(1024 * 1024 * 56));
> try { BufferedImage image = new
> PDFRenderer(pdDocument).renderImageWithDPI(0, 300, ImageType.RGB);
> ImageIO.write(image, "png", new File("bad-black-background.png"));
> } finally {
> pdDocument.close();
> } {code}
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