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Posted to dev@pdfbox.apache.org by "Michael McCandless (JIRA)" <ji...@apache.org> on 2012/05/04 12:40:48 UTC
[jira] [Updated] (PDFBOX-1297) ExtractText fails to extract text
from packaged PDFs
[ https://issues.apache.org/jira/browse/PDFBOX-1297?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Michael McCandless updated PDFBOX-1297:
---------------------------------------
Attachment: testPDFPackage.pdf
PDFBOX-1297.patch
Patch, adding embedded PDF handling to ExtractText, plus a test case
(and test document).
I would really appreciate someone who's more familiar with PDFBox's
APIs having a look at what I did... I had to dig into various classes
that I don't really understand: PDDocumentCatalog,
PDDocumentNameDictionary, PDEmbeddedFilesNameTreeNode,
PDComplexFileSpecification, PDEmbeddedFile.
I only extract text for embedded PDFs but not other content-types.
I noticed Tika's parser also fails to visit embedded documents within
a PDF... I'll open a separate issue.
> ExtractText fails to extract text from packaged PDFs
> ----------------------------------------------------
>
> Key: PDFBOX-1297
> URL: https://issues.apache.org/jira/browse/PDFBOX-1297
> Project: PDFBox
> Issue Type: Improvement
> Components: Text extraction
> Affects Versions: 1.6.0
> Environment: Fedora 13 Linux
> Reporter: Michael McCandless
> Attachments: PDFBOX-1297.patch, PDFPackage.pdf, testPDFPackage.pdf
>
>
> Apparently a PDF is able to contain multiple files (like a Zip file); it's called
> a PDF Package, described at
> http://help.adobe.com/en_US/Reader/8.0/help.html?content=WSE034CA46-D08F-4fff-AA3C-FF04510DAEF0.html
> I have a simple example PDF Package, containing two sub-PDFs, but ExtractText
> fails to extract their text.
> It does run successfully (no exceptions), but the text it extracts is just the boilerplate text
> saying you should upgrade to Adobe Acrobat version 8 or later to view this PDF.
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