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https://issues.apache.org/jira/browse/PDFBOX-5816?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tilman Hausherr updated PDFBOX-5816:
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    Labels: JPEG2000 JPXDecode JPXFilter  (was: )

> PDFRenderer.renderImage creates black line clouds on the text
> -------------------------------------------------------------
>
>                 Key: PDFBOX-5816
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-5816
>             Project: PDFBox
>          Issue Type: Bug
>          Components: PDModel, Rendering
>    Affects Versions: 2.0.30, 2.0.31
>         Environment: Java 8
>            Reporter: ExSp
>            Priority: Major
>              Labels: JPEG2000, JPXDecode, JPXFilter
>         Attachments: image003.png, image0032.png
>
>
> For some PDF files, the PDFRenderer.renderImage method creates an image with 
> black line clouds on the text that are not visible in the original PDF. 
> Unfortunately, the files contain personal data, so I cannot make them 
> available for examination. The attached screenshots hopefully give a first 
> impression of the problem. Is there any way for me to narrow down the problem 
> or analyze the PDF so that I can provide more information?
> The source code does something like this:
> {code:java}
> try (PDDocument document = PDDocument.load(pdfData)) {
>   PDFRenderer pdfRenderer = new PDFRenderer(document);
>   int pageCount = document.getNumberOfPages();
>   for (int pageIndex = 0; pageIndex < pageCount; ++pageIndex) {
>     PDPage page = document.getPage(pageIndex);
>     BufferedImage pageImage = pdfRenderer.renderImage(pageIndex);
> ...
>   }
> }{code}



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