Better handle null embedded files

[bakersemail]

Found PDFs created by Xero threw a NPE. Needed to handle null EMBEDDEDFILES.

PdfDictionary names = root.getAsDict(PdfName.NAMES);
PdfArray namesArray = null;
if (names != null) {
PdfDictionary embeddedFiles = names.getAsDict(PdfName.EMBEDDEDFILES);
// Added this: need to check this isnt null
if (embeddedFiles != null) {
namesArray = embeddedFiles.getAsArray(PdfName.NAMES);
}
}

[righettod]

Thanks for the issue, do you have a sample file in order that I implements a unit test?