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https://issues.apache.org/jira/browse/PDFBOX-4672?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16957296#comment-16957296
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Tilman Hausherr commented on PDFBOX-4672:
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LOL I looked at the internals anyway and I found the reason, {{public static
PDImageXObject createFromImage}} should check for transparency.
> Draws the attachment image to the PDF document, and the image displays as a
> black block
> ---------------------------------------------------------------------------------------
>
> Key: PDFBOX-4672
> URL: https://issues.apache.org/jira/browse/PDFBOX-4672
> Project: PDFBox
> Issue Type: Bug
> Components: PDModel
> Affects Versions: 2.0.17
> Reporter: bai yuan
> Priority: Major
> Fix For: 2.0.18, 3.0.0 PDFBox
>
> Attachments: ImageTest.zip, image1.png
>
>
> [^ImageTest.zip]!image1.png!
> {code:java}
> pdImage = PDImageXObject.createFromFile("Resources\\image1.png", doc);
> PDPageContentStream contents = new PDPageContentStream(doc, page);
> contents.drawImage(pdImage, 100, 100);
> {code}
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