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https://issues.apache.org/jira/browse/PDFBOX-5675?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17776517#comment-17776517
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liu commented on PDFBOX-5675:
-----------------------------
写的时候可以加条件吗？ 当发现总写入数据超过指定大小，如50MB时，基于临时文件节省内存。
> org.apache.pdfbox.filter.Filter#decode() Java heap space
> --------------------------------------------------------
>
> Key: PDFBOX-5675
> URL: https://issues.apache.org/jira/browse/PDFBOX-5675
> Project: PDFBox
> Issue Type: Bug
> Affects Versions: 3.0.0 PDFBox
> Reporter: liu
> Priority: Major
> Attachments: 2095e3df01fc32e0bff982a1e79600d5bcf10b81.pdf,
> image-2023-09-05-15-05-50-168.png, image.png
>
>
> !image-2023-09-05-15-05-50-168.png!
> When converting the sixth page of this PDF
> file（2095e3df01fc32e0bff982a1e79600d5bcf10b81.pdf） to an image, a memory
> overflow occurs. Can you provide a way to store the output in a temporary
> file?
> {code:java}
> -Xmx2000m
> public static void main(String[] args) throws IOException,
> InterruptedException {
> File file = new
> File("D:\\2095e3df01fc32e0bff982a1e79600d5bcf10b81.pdf");
> PDDocument pdf = Loader.loadPDF(file,
> IOUtils.createTempFileOnlyStreamCache());
> pdf.setResourceCache(new PdfboxResourceCache());
> PDFRenderer renderer = new PDFRenderer(pdf);
> renderer.setSubsamplingAllowed(true);
> BufferedImage bi = renderer.renderImage(5, 0.125f);
> Thread.sleep(3600000);
> pdf.close();
> }
> {code}
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