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https://issues.apache.org/jira/browse/PDFBOX-5252?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Tilman Hausherr closed PDFBOX-5252.
-----------------------------------
Resolution: Cannot Reproduce
> Corrupted fonts with rendering inside SwingWorker
> -------------------------------------------------
>
> Key: PDFBOX-5252
> URL: https://issues.apache.org/jira/browse/PDFBOX-5252
> Project: PDFBox
> Issue Type: Bug
> Components: FontBox, Rendering
> Affects Versions: 2.0.24
> Reporter: Maxim
> Priority: Major
> Labels: concurrency, multithreading
> Attachments: MainWindow.java, Снимок.PNG
>
>
> Page rendering is a time-consuming operation, so I try to perform it in
> separate thread (via Swing Worker). It's mostly working, but sometimes I face
> error messages in my log. Then, in some cases fonts on rendered page might
> become corrupted (just like on attached picture, where word "istream" is
> rendered like "istrea" with wide "a"). I don't remember such issues using
> single-thread, but that's not suitable for me (application UI freezes if I
> perform rendering in the same thread).
> Here's a link to my PDF: https://disk.yandex.ru/i/bZMPleH_GosWug
> {code:java}
> авг 07, 2021 12:16:56 PM org.apache.pdfbox.filter.FlateFilter decompressавг
> 07, 2021 12:16:56 PM org.apache.pdfbox.filter.FlateFilter decompressWARNING:
> FlateFilter: premature end of stream due to a DataFormatExceptionавг 07, 2021
> 12:16:56 PM org.apache.pdfbox.pdmodel.font.PDCIDFontType0 <init>SEVERE: Can't
> read the embedded CFF font Fd2121547java.io.IOException: illegal offset value
> 132698 in CFF font at
> org.apache.fontbox.cff.CFFParser.readIndexDataOffsets(CFFParser.java:192) at
> org.apache.fontbox.cff.CFFParser.readIndexData(CFFParser.java:201) at
> org.apache.fontbox.cff.CFFParser.parseFont(CFFParser.java:486) at
> org.apache.fontbox.cff.CFFParser.parse(CFFParser.java:122) at
> org.apache.fontbox.cff.CFFParser.parse(CFFParser.java:75) at
> org.apache.pdfbox.pdmodel.font.PDCIDFontType0.<init>(PDCIDFontType0.java:100)
> at
> org.apache.pdfbox.pdmodel.font.PDFontFactory.createDescendantFont(PDFontFactory.java:135)
> at org.apache.pdfbox.pdmodel.font.PDType0Font.<init>(PDType0Font.java:196)
> at
> org.apache.pdfbox.pdmodel.font.PDFontFactory.createFont(PDFontFactory.java:97)
> at org.apache.pdfbox.pdmodel.PDResources.getFont(PDResources.java:146) at
> org.apache.pdfbox.contentstream.operator.text.SetFontAndSize.process(SetFontAndSize.java:66)
> at
> org.apache.pdfbox.contentstream.PDFStreamEngine.processOperator(PDFStreamEngine.java:933)
> at
> org.apache.pdfbox.contentstream.PDFStreamEngine.processStreamOperators(PDFStreamEngine.java:514)
> at
> org.apache.pdfbox.contentstream.PDFStreamEngine.processStream(PDFStreamEngine.java:492)
> at
> org.apache.pdfbox.contentstream.PDFStreamEngine.processPage(PDFStreamEngine.java:155)
> at org.apache.pdfbox.rendering.PageDrawer.drawPage(PageDrawer.java:277) at
> org.apache.pdfbox.rendering.PDFRenderer.renderImage(PDFRenderer.java:347) at
> org.apache.pdfbox.rendering.PDFRenderer.renderImage(PDFRenderer.java:268) at
> org.apache.pdfbox.rendering.PDFRenderer.renderImage(PDFRenderer.java:228) at
> MainWindow$pageLoader.doInBackground(MainWindow.java:286) at
> MainWindow$pageLoader.doInBackground(MainWindow.java:1) at
> javax.swing.SwingWorker$1.call(Unknown Source) at
> java.util.concurrent.FutureTask.run(Unknown Source) at
> javax.swing.SwingWorker.run(Unknown Source) at
> java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at
> java.lang.Thread.run(Unknown Source)
> авг 07, 2021 12:16:57 PM org.apache.pdfbox.pdmodel.font.PDCIDFontType0
> <init>WARNING: Using fallback LiberationSans for CID-keyed font
> Fd2121547{code}
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