NullPointerException PDFFont#getEncodingFromFont with a PDF book because 
Type1Encoding is null
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                 Key: PDFBOX-897
                 URL: https://issues.apache.org/jira/browse/PDFBOX-897
             Project: PDFBox
          Issue Type: Bug
          Components: Parsing
    Affects Versions: 1.3.1
            Reporter: Martijn Brinkers
         Attachments: PDFBOX-897.patch

A NullPointerException was thrown while extracting text from a PDF ebook. The 
exception was thrown in

PDFFont#getEncodingFromFont  line:

[snip]
encoding.addCharacterEncoding(index, name.replace("/", ""));
[snip]

encoding was null. The line that was scanned was "/Encoding 256 array 0 1 255 
{1 index exch /.notdef put} for". The array check however only checks for 
line.endsWith("array"). The NPE was fixed when using line.contains("array") 
instead. 

I have added a patch. The PDF is a PDF book with copyright so it cannot be 
attached as an example. The meta data of the document was:

Acrobat Distiller 7.0 (Windows)
PScript5.dll Version 5.2.2
PDF-1.6

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