Maruan Sahyoun created PDFBOX-3082:
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Summary: High memory consumption while building font cache
Key: PDFBOX-3082
URL: https://issues.apache.org/jira/browse/PDFBOX-3082
Project: PDFBox
Issue Type: Bug
Components: PDModel
Affects Versions: 2.0.0
Reporter: Maruan Sahyoun
When the font cache is build there is a very high memory consumption.
For this small program
{code}
public static void main(String[] args)
{
PDFont font = PDType1Font.HELVETICA;
try
{
System.in.read();
}
catch (IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
{code}
I need to set {{-Xmx1512M}} in order to avoid an OOM
Smaller memory settings will bring this
{code}
$ java -Xmx1256M -jar Test.jar
Nov 03, 2015 2:48:32 AM org.apache.pdfbox.pdmodel.font.FileSystemFontProvider
loadCache
WARNUNG: New fonts found, font cache will be re-built
Nov 03, 2015 2:48:32 AM org.apache.pdfbox.pdmodel.font.FileSystemFontProvider
<init>
WARNUNG: Building font cache, this may take a while
Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
at org.apache.fontbox.cff.IndexData.initData(IndexData.java:95)
at org.apache.fontbox.cff.CFFParser.readIndexData(CFFParser.java:163)
at org.apache.fontbox.cff.CFFParser.parseFont(CFFParser.java:393)
at org.apache.fontbox.cff.CFFParser.parse(CFFParser.java:115)
at org.apache.fontbox.ttf.CFFTable.read(CFFTable.java:53)
at org.apache.fontbox.ttf.TrueTypeFont.readTable(TrueTypeFont.java:377)
at org.apache.fontbox.ttf.OpenTypeFont.getCFF(OpenTypeFont.java:61)
at
org.apache.pdfbox.pdmodel.font.FileSystemFontProvider.addTrueTypeFontImpl(FileSystemFontProvider.java:432)
at
org.apache.pdfbox.pdmodel.font.FileSystemFontProvider.addTrueTypeCollection(FileSystemFontProvider.java:344)
at
org.apache.pdfbox.pdmodel.font.FileSystemFontProvider.scanFonts(FileSystemFontProvider.java:243)
at
org.apache.pdfbox.pdmodel.font.FileSystemFontProvider.<init>(FileSystemFontProvider.java:224)
at
org.apache.pdfbox.pdmodel.font.FontMapperImpl$DefaultFontProvider.<clinit>(FontMapperImpl.java:132)
at
org.apache.pdfbox.pdmodel.font.FontMapperImpl.getProvider(FontMapperImpl.java:151)
at
org.apache.pdfbox.pdmodel.font.FontMapperImpl.findFont(FontMapperImpl.java:415)
at
org.apache.pdfbox.pdmodel.font.FontMapperImpl.findFontBoxFont(FontMapperImpl.java:378)
at
org.apache.pdfbox.pdmodel.font.FontMapperImpl.getFontBoxFont(FontMapperImpl.java:352)
at
org.apache.pdfbox.pdmodel.font.PDType1Font.<init>(PDType1Font.java:114)
at
org.apache.pdfbox.pdmodel.font.PDType1Font.<clinit>(PDType1Font.java:76)
at PDFontTest.main(PDFontTest.java:11)
{code}
Possible cause is a large number of fonts on my system
{code}
Nov 03, 2015 2:56:01 AM org.apache.pdfbox.pdmodel.font.FileSystemFontProvider
loadCache
WARNUNG: New fonts found, font cache will be re-built
Nov 03, 2015 2:56:01 AM org.apache.pdfbox.pdmodel.font.FileSystemFontProvider
<init>
WARNUNG: Building font cache, this may take a while
Nov 03, 2015 2:56:22 AM org.apache.pdfbox.pdmodel.font.FileSystemFontProvider
saveCache
WARNUNG: Finished building font cache, found 876 fonts
{code}
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