[ 
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 - 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 showText 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}

  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 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}


> 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 - 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 showText 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}



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