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https://issues.apache.org/jira/browse/PDFBOX-635?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12837756#action_12837756
 ] 

Villu Ruusmann commented on PDFBOX-635:
---------------------------------------

This patch can only be understood if one analyzes it in the context of method 
org.apache.pdfbox.pdmodel.font.PDFontFactory#createFont(COSDictionary).

Here's an excerpt:

if(cosDictionary.getFontType().equals("Type1")){
  PDFont retvalue = new Type1Font(cosDictionary);
  if(cosDictionary.getFontSubType().equals("Type1C")){
    try {
      retvalue = new Type1CFont(cosDictionary);
    } catch(Exception e){
      log.warn("Cannot create replacement Type1C font, returning original Type1 
font");
    }
  }
  return retvalue;
}

> Fallback mechanism for broken CFF fonts
> ---------------------------------------
>
>                 Key: PDFBOX-635
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-635
>             Project: PDFBox
>          Issue Type: Improvement
>          Components: PDModel
>    Affects Versions: 1.0.1
>            Reporter: Villu Ruusmann
>         Attachments: PDFBox.patch
>
>
> PDFBOX-542 has not proven to be sufficiently foolproof for real-world PDF 
> documents.
> PDFBox should fallback to a Type1 font with appropriate warning message (this 
> is the default behaviour with PDFBox 0.8.0 and earlier versions) when there 
> is a problem parsing/interpreting a CFF (aka Type1C) font.

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