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https://issues.apache.org/jira/browse/PDFBOX-1649?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Niels Beekman updated PDFBOX-1649:
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Attachment: test.png
test.pdf
screenshot.png
> PNG images with alpha channel displays thin grey lines
> ------------------------------------------------------
>
> Key: PDFBOX-1649
> URL: https://issues.apache.org/jira/browse/PDFBOX-1649
> Project: PDFBox
> Issue Type: Bug
> Components: Writing
> Affects Versions: 1.8.2
> Environment: Microsoft Windows [Version 6.1.7601]
> PDFBox 1.8.2
> Adobe Reader 10.1.7
> Google Chrome 27.0.1453.110 m
> Reporter: Niels Beekman
> Attachments: screenshot.png, test.pdf, test.png
>
>
> When including a PNG file in a PDF file, both Adobe Reader and Google Chrome
> show thin grey lines. I have attached a screenshot showing the issue.
> PDDocument document = new PDDocument();
> PDPage page = new PDPage(PDPage.PAGE_SIZE_A4);
> document.addPage(page);
> BufferedImage buffImage = ImageIO.read(new File("test.png"));
> PDPixelMap pixelMap = new PDPixelMap(document, buffImage);
> PDPageContentStream contentStream = new PDPageContentStream(document, page);
> contentStream.drawImage(pixelMap, 0, 0);
> contentStream.close();
> document.save(new File("test.pdf"));
> This does not happen with a flattened PNG (without alpha channel).
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