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https://issues.apache.org/jira/browse/PDFBOX-5816?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17844669#comment-17844669
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ExSp commented on PDFBOX-5816:
------------------------------
[~tilman] : Thank you very much for your quick response and the infos for
solving this problem! I was not able to finde anytihng on the internet with my
"wrong" searchterms.
> 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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