[
https://issues.apache.org/jira/browse/PDFBOX-5252?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Maxim updated PDFBOX-5252:
--------------------------
Attachment: MainWindow.java
Снимок.PNG
Language: Java
Description:
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).
{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}
> 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
> 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).
> {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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