On Mark's advice I downloaded the source code from the 5.0.2 branch
and dug a little deeper...
The NPE is thrown on the following line of the DocumentFont constructor.
fontName = PdfName.decodeName(font.getAsName(PdfName.BASEFONT).toString());
It turns out that font.getAsName(PdfName.BASEFONT) returns null.
font, which is a PdfDictionary, has the following values in its hash map...
{/FontBBox=[-2, -9, 38, 40], /LastChar=121, /FontMatrix=[0.240000, 0,
0, 0.240000, 0, 0], /Type=/Font, /Resources=Dictionary, /CharProcs=134
0 R, /Encoding=72 0 R, /Subtype=/Type3, /Name=/C0HN2000T1X005000,
/Widths=135 0 R, /FirstChar=32}
You'll notice that there is no key for /BaseFont.
I'm not sure I can post the whole pdf to a public news group... I will
see if I can cut it down to a page or so of none sensitive data first.
Ben
On 16 June 2010 16:31, Kevin Day <ke...@trumpetinc.com> wrote:
>
> I will add to Mark's (excellent) stream of consciousness analysis:
>
> The next step is to see what the name of the font resource is that is
> causing the problem. Then, load RUPS and dig into the page dictionary and
> find the entry for that font resource - given what Mark is showing in the
> source, most likely the font resource isn't defined.
>
> There's always a question with this sort of thing about 'why does Acrobat
> show the file OK' - the answer is that Acrobat is very permissive - there
> are all sorts of problems like this that it may silently ignore. Older
> versions of Acrobat often show problems that newer versions ignore.
>
> And then, of course, there's always the possibility that there's a problem
> with iText, and the strategy for looking up font resources isn't quite in
> sync with the PDF spec. I don't *think* that is the case here, but it's
> always possible.
>
> If you do wind up providing the PDF so we can take a look, be sure to also
> provide font file that think may be involved.
>
> - K
> --
> View this message in context:
> http://itext-general.2136553.n4.nabble.com/NPE-while-Extracting-text-tp2256512p2257485.html
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>
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