Tim Allison created TIKA-1374:
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Summary: Need to add code to look for OS-specific keys for
embedded files within PDFs
Key: TIKA-1374
URL: https://issues.apache.org/jira/browse/TIKA-1374
Project: Tika
Issue Type: Improvement
Components: parser
Reporter: Tim Allison
Assignee: Tim Allison
Priority: Minor
Fix For: 1.6
Embedded files in PDFs can be found by the general all purpose key we
currently use via PDFBox: "EF/F". However, embedded documents can also be
stored under OS specific keys: "EF/DOS", "EF/Mac" and "EF/Unix".
[~lehmi] confirmed on the PDFBox users
[list|http://mail-archives.apache.org/mod_mbox/pdfbox-users/201407.mbox/%3c1572548479.2099779.1406198761475.open-xchange@patina.store%3e]
that we might be missing embedded documents if we're not trying the OS
specific keys as well. As Andreas points out, according to the spec the OS
specific keys shouldn't be used any more, but I think we should support
extraction for them.
My proposal is to pull all documents that are available by any of the four keys
(well, via getEmbeddedFile<OS>() in PDFBox). The code fix is trivial, and I'll
try to commit it today. However, it will take me a bit of time to generate a
test file that stores files under the OS specific keys. So, if anyone has an
ASF-friendly file available or wants to take the task of generating one, please
do.
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