[
https://issues.apache.org/jira/browse/PDFBOX-5849?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Leonard Wicke updated PDFBOX-5849:
----------------------------------
Description:
*Affected Versions*
PDFBox 2.0.30 is not affected - so its likely that also no other version of
major-release 2 is affected.
PDFBox 3.0.2 is affected.
It appears to us that this is a bug that is new with major-release 3.
*Description*
We are using Apache PDFBox 3.0.2 in our software and have the following issue.
We want to write a String using the font FreeSansBold.
The font is loaded via PDType0Font#load from a TTF-file.
If we load the font with embedSubset=true than the following exception occurs:
{code:java}
java.lang.ArrayIndexOutOfBoundsException: Index 2941 out of bounds for length
2912
at
org.apache.fontbox.ttf.TTFSubsetter.addCompoundReferences(TTFSubsetter.java:500)
at org.apache.fontbox.ttf.TTFSubsetter.getGIDMap(TTFSubsetter.java:147)
at
org.apache.pdfbox.pdmodel.font.TrueTypeEmbedder.subset(TrueTypeEmbedder.java:336)
at org.apache.pdfbox.pdmodel.font.PDType0Font.subset(PDType0Font.java:304)
at
org.apache.pdfbox.pdmodel.PDDocument.subsetDesignatedFonts(PDDocument.java:1046)
at org.apache.pdfbox.pdmodel.PDDocument.save(PDDocument.java:1034)
at org.apache.pdfbox.pdmodel.PDDocument.save(PDDocument.java:988)
at org.apache.pdfbox.pdmodel.PDDocument.save(PDDocument.java:944){code}
The reason is the question-mark-character "?". The character "!" also causes an
exception.
Letters like a-zA-Z dont.
This character is first correctly identified as Glyph-ID 34 but then in
PDAbstractContentStream#encodeForGsub converted to 2914 by
GsubWorkerForDevanagari.
This glyph does not exist for this font and causes the exception later in the
code when saving the document when subsetting the fonts.
The exception does not occur when writing the text in the PDPageContentStream.
If we load the font with embetSubst=false then no exception occurs but the
character is not visible/skipped in the pdf.
I have only found old and fixed issues with ArrayIndexOutOfBoundsExceptions
(https://issues.apache.org/jira/browse/PDFBOX-4946).
*Code that causes the exception*
With Apache PDFBox 3 a new functionality during showTextInternal in
PDPageContentStream was added = encodeForGsub
This causes the glyphs of the character to be modified - to a glyph that does
not exist.
*Code to redproduce*
you need the font FreeSansBold or another font that causes this problem
{code:java}
PDDocument document = new PDDocument();
File boldF = new File("src/test/resources/fonts", "FreeSansBold.ttf");
TrueTypeFont boldT = new TTFParser().parse(new
RandomAccessReadBufferedFile(boldF));
PDFont bold = PDType0Font.load(document, boldT, true);
PDPage page = new PDPage(PDRectangle.A4);
PDPageContentStream contentStream = new PDPageContentStream(document, page,
PDPageContentStream.AppendMode.APPEND, true, true);
contentStream.setFont(bold, 11);
contentStream.beginText();
contentStream.newLineAtOffset(50, 50);
contentStream.showText("?");
contentStream.endText();
contentStream.close();
document.addPage(page);
document.save(new File("Test.pdf"));{code}
*Questions*
Is this a bug in Apache PDFBox / FontBox ?
It appears that the code in question is only executed for Fonts of class
PDType0Font - is it possible to load a font using another class to avoid this
bug ?
was:
*Affected Versions*
PDFBox 2.0.30 is not affected - so its likely that also no other version of
major-release 2 is affected.
PDFBox 3.0.2 is affected - so its likely that all path-releases of
major-release 3 are affected.
It appears to us that this is a bug that is new with major-release 3.
*Description*
We are using Apache PDFBox 3.0.2 in our software and have the following issue.
We want to write a String using the font FreeSansBold.
The font is loaded via PDType0Font#load from a TTF-file.
If we load the font with embedSubset=true than the following exception occurs:
{code:java}
java.lang.ArrayIndexOutOfBoundsException: Index 2941 out of bounds for length
2912
at
org.apache.fontbox.ttf.TTFSubsetter.addCompoundReferences(TTFSubsetter.java:500)
at org.apache.fontbox.ttf.TTFSubsetter.getGIDMap(TTFSubsetter.java:147)
at
org.apache.pdfbox.pdmodel.font.TrueTypeEmbedder.subset(TrueTypeEmbedder.java:336)
at org.apache.pdfbox.pdmodel.font.PDType0Font.subset(PDType0Font.java:304)
at
org.apache.pdfbox.pdmodel.PDDocument.subsetDesignatedFonts(PDDocument.java:1046)
at org.apache.pdfbox.pdmodel.PDDocument.save(PDDocument.java:1034)
at org.apache.pdfbox.pdmodel.PDDocument.save(PDDocument.java:988)
at org.apache.pdfbox.pdmodel.PDDocument.save(PDDocument.java:944){code}
The reason is the question-mark-character "?". The character "!" also causes an
exception.
Letters like a-zA-Z dont.
This character is first correctly identified as Glyph-ID 34 but then in
PDAbstractContentStream#encodeForGsub converted to 2914 by
GsubWorkerForDevanagari.
This glyph does not exist for this font and causes the exception later in the
code when saving the document when subsetting the fonts.
The exception does not occur when writing the text in the PDPageContentStream.
If we load the font with embetSubst=false then no exception occurs but the
character is not visible/skipped in the pdf.
I have only found old and fixed issues with ArrayIndexOutOfBoundsExceptions
(https://issues.apache.org/jira/browse/PDFBOX-4946).
*Code that causes the exception*
With Apache PDFBox 3 a new functionality during showTextInternal in
PDPageContentStream was added = encodeForGsub
This causes the glyphs of the character to be modified - to a glyph that does
not exist.
*Code to redproduce*
you need the font FreeSansBold or another font that causes this problem
{code:java}
PDDocument document = new PDDocument();
File boldF = new File("src/test/resources/fonts", "FreeSansBold.ttf");
TrueTypeFont boldT = new TTFParser().parse(new
RandomAccessReadBufferedFile(boldF));
PDFont bold = PDType0Font.load(document, boldT, true);
PDPage page = new PDPage(PDRectangle.A4);
PDPageContentStream contentStream = new PDPageContentStream(document, page,
PDPageContentStream.AppendMode.APPEND, true, true);
contentStream.setFont(bold, 11);
contentStream.beginText();
contentStream.newLineAtOffset(50, 50);
contentStream.showText("?");
contentStream.endText();
contentStream.close();
document.addPage(page);
document.save(new File("Test.pdf"));{code}
*Questions*
Is this a bug in Apache PDFBox / FontBox ?
It appears that the code in question is only executed for Fonts of class
PDType0Font - is it possible to load a font using another class to avoid this
bug ?
> ArrayIndexOutOfBoundsException in Apache PDFBox 3 in connection with Font
> -------------------------------------------------------------------------
>
> Key: PDFBOX-5849
> URL: https://issues.apache.org/jira/browse/PDFBOX-5849
> Project: PDFBox
> Issue Type: Bug
> Components: FontBox, Rendering
> Affects Versions: 3.0.2 PDFBox
> Reporter: Leonard Wicke
> Priority: Major
> Labels: fontbox, pdfbox
>
> *Affected Versions*
> PDFBox 2.0.30 is not affected - so its likely that also no other version of
> major-release 2 is affected.
> PDFBox 3.0.2 is affected.
> It appears to us that this is a bug that is new with major-release 3.
> *Description*
> We are using Apache PDFBox 3.0.2 in our software and have the following issue.
> We want to write a String using the font FreeSansBold.
> The font is loaded via PDType0Font#load from a TTF-file.
> If we load the font with embedSubset=true than the following exception occurs:
> {code:java}
> java.lang.ArrayIndexOutOfBoundsException: Index 2941 out of bounds for length
> 2912
> at
> org.apache.fontbox.ttf.TTFSubsetter.addCompoundReferences(TTFSubsetter.java:500)
> at org.apache.fontbox.ttf.TTFSubsetter.getGIDMap(TTFSubsetter.java:147)
> at
> org.apache.pdfbox.pdmodel.font.TrueTypeEmbedder.subset(TrueTypeEmbedder.java:336)
> at org.apache.pdfbox.pdmodel.font.PDType0Font.subset(PDType0Font.java:304)
> at
> org.apache.pdfbox.pdmodel.PDDocument.subsetDesignatedFonts(PDDocument.java:1046)
> at org.apache.pdfbox.pdmodel.PDDocument.save(PDDocument.java:1034)
> at org.apache.pdfbox.pdmodel.PDDocument.save(PDDocument.java:988)
> at org.apache.pdfbox.pdmodel.PDDocument.save(PDDocument.java:944){code}
> The reason is the question-mark-character "?". The character "!" also causes
> an exception.
> Letters like a-zA-Z dont.
> This character is first correctly identified as Glyph-ID 34 but then in
> PDAbstractContentStream#encodeForGsub converted to 2914 by
> GsubWorkerForDevanagari.
> This glyph does not exist for this font and causes the exception later in the
> code when saving the document when subsetting the fonts.
> The exception does not occur when writing the text in the PDPageContentStream.
> If we load the font with embetSubst=false then no exception occurs but the
> character is not visible/skipped in the pdf.
> I have only found old and fixed issues with ArrayIndexOutOfBoundsExceptions
> (https://issues.apache.org/jira/browse/PDFBOX-4946).
> *Code that causes the exception*
> With Apache PDFBox 3 a new functionality during showTextInternal in
> PDPageContentStream was added = encodeForGsub
> This causes the glyphs of the character to be modified - to a glyph that does
> not exist.
> *Code to redproduce*
> you need the font FreeSansBold or another font that causes this problem
> {code:java}
> PDDocument document = new PDDocument();
> File boldF = new File("src/test/resources/fonts", "FreeSansBold.ttf");
> TrueTypeFont boldT = new TTFParser().parse(new
> RandomAccessReadBufferedFile(boldF));
> PDFont bold = PDType0Font.load(document, boldT, true);
> PDPage page = new PDPage(PDRectangle.A4);
> PDPageContentStream contentStream = new PDPageContentStream(document, page,
> PDPageContentStream.AppendMode.APPEND, true, true);
> contentStream.setFont(bold, 11);
> contentStream.beginText();
> contentStream.newLineAtOffset(50, 50);
> contentStream.showText("?");
> contentStream.endText();
> contentStream.close();
> document.addPage(page);
> document.save(new File("Test.pdf"));{code}
> *Questions*
> Is this a bug in Apache PDFBox / FontBox ?
> It appears that the code in question is only executed for Fonts of class
> PDType0Font - is it possible to load a font using another class to avoid this
> bug ?
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