PDFlib Text Extraction Toolkit (TET) Manual

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4.6 TET Connector for the Apache TIKA Toolkit TIKA is an open-source »toolkit for detecting and extracting metadata and structured text content from various documents using existing parser libraries«. For more information about TIKA see tika.apache.org. The TET connector for Tika replaces the default PDF parser configured in Tika and hooks up TET as parser for the PDF format. The TET connector supplies the following items to Tika: > unformatted text contents of all pages > predefined and custom document info fields > number of pages in the document Note Protected documents can be indexed with the shrug option under certain conditions (see Chapter 5.1, »Extracting Content from protected PDF«, page 59, for details). This is prepared in the Connector files, but you must manually enable this option. TETPDFParser.java additionally provides a method for supplying a password in case the shrug option is not sufficient. Requirements and installation. The TET distribution contains a TET connector for the Tika toolkit. In the description below stands for the directory where the TET package was unpacked. The following requirements must be met: > JDK 1.5 or later > A working installation of the Ant build tool > An installed TET distribution package for Unix, Linux, OS X, or Windows. > A pre-built JAR file for Tika called tika-app-1.x.jar. Download information for this file can be found at the following location: tika.apache.org/download.html Building and testing the TET connector for Tika. Proceed as follows to build and test the TET connector for Tika: > Copy tika-app-1.x.jar to the directory /connectors/Tika. > Change to /connectors/Tika and build the TET connector for Tika: ant If your Tika jar file has a name different from tika-app-1.0.jar you must supply the name of the jar file on the command line: ant -Dtika-app.jar=tika-app-1.5.jar > The build file includes a target for running a test with the TET connector for Tika: ant test This command should produce the contents of /bind/data/FontReporter.pdf as XHTML on the standard output. To test with a PDF file of your choice provide the Ant property test.inputfile on the command line as follows: ant -Dtest.inputfile=/path/to/your/file.pdf test The ability to supply a password for protected documents can be tested as follows: ant -Dtest.inputfile= -Dtest.outputfile= -Dtest.password= api-test 54 Chapter 4: TET Connectors
To verify that the TET connector for Tika is actually used for the MIME type application/pdf, execute the following command in the directory /connectors/Tika on Unix and OS X systems: java -Djava.library.path=/bind/java -classpath /bind/java/TET.jar:tika-app-1.0.jar:tet-tika.jar org.apache.tika.cli.TikaCLI --list-parser-details On Windows: java -Djava.library.path=/bind/java -classpath /bind/java/TET.jar;tika-app-1.0.jar;tet-tika.jar org.apache.tika.cli.TikaCLI --list-parser-details The following fragment should appear in the generated output: com.pdflib.tet.tika.TETPDFParser application/pdf > For running the Tika GUI application with the TET connector, execute the following command in the directory /connectors/Tika: On Unix and OS X systems: java -Djava.library.path=/bind/java -classpath /bind/java/TET.jar:tika-app-1.0.jar:tet-tika.jar org.apache.tika.cli.TikaCLI On Windows: java -Djava.library.path=\bind\java -classpath \bind\java\TET.jar;tika-app-1.0.jar;tet-tika.jar org.apache.tika.cli.TikaCLI Customizing the TET connector for Tika. You can customize the Tika connector as follows in the TETPDFParser.java source module: > Add document options to the DOC_OPT_LIST variable, e.g. the shrug option for processing protected documents; > Add page options to the PAGE_OPT_LIST variable; > Customize the searchpath for resources such as CJK CMaps in the SEARCHPATH variable. Alternatively, the tet.searchpath property can be supplied when processing PDF documents. 4.6 TET Connector for the Apache TIKA Toolkit 55
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ABC Text Extraction Toolkit (TET) V
Page 3 and 4: Contents 0 First Steps with TET 7 0
Page 5: 8.6 Restrictions and Caveats 121 9
Page 8 and 9: 0.2 Applying the TET License Key Us
Page 10 and 11: Setting the license key with a TET
Page 12 and 13: CJK support. TET includes full supp
Page 14 and 15: The TET Plugin is a free extension
Page 16 and 17: new connector for the TIKA toolkit
Page 18 and 19: Table 2.1 TET command-line options
Page 20 and 21: 2.2 Constructing TET Command Lines
Page 22 and 23: Extract images from file.pdf in a r
Page 24 and 25: 3.2 C Binding TET is written in C w
Page 26 and 27: 3.3 C++ Binding Note For applicatio
Page 28 and 29: 3.4 COM Binding Installing the TET
Page 30 and 31: The following method of the String
Page 32 and 33: 3.7 Objective-C Binding Although th
Page 34 and 35: 3.8 Perl Binding The TET wrapper fo
Page 36 and 37: } catch (TETException $e) { print "
Page 38 and 39: 3.11 REALbasic Binding Installing t
Page 40 and 41: oot :to => "home#demo" > Edit app/c
Page 42 and 43: tion occurs, the job log shows the
Page 44 and 45: Acrobat provides only garbage when
Page 46 and 47: BUILD SUCCESSFUL Total time: 2 seco
Page 48 and 49: 4.3 TET Connector for the Solr Sear
Page 50 and 51: SQL> GRANT EXECUTE ON CTX_DOC TO HR
Page 52 and 53: 4.5 TET PDF IFilter for Microsoft P
Page 56 and 57: 4.7 TET Connector for MediaWiki Med
Page 59 and 60: 5 Configuration 5.1 Extracting Cont
Page 61 and 62: 5.2 Resource Configuration and File
Page 63 and 64: product manually, make sure to use
Page 65 and 66: 5.3 Recommendations for common Scen
Page 67 and 68: Also to ensure text fidelity you ma
Page 69 and 70: 6 Text Extraction 6.1 PDF Document
Page 71 and 72: How to display with Acrobat X: Tool
Page 73 and 74: 6.2 Page and Text Geometry Default
Page 75 and 76: width (x, y) beta fontsize baseline
Page 77 and 78: * Query ascender and descender valu
Page 79 and 80: 6.3 Chinese, Japanese, and Korean T
Page 81 and 82: Table 6.1 CJK compatibility decompo
Page 83 and 84: Since the PDF document may map pres
Page 85 and 86: Separator characters are inserted b
Page 87 and 88: this situation and recombines both
Page 89 and 90: Table 6.4 Document styles docstyle=
Page 91 and 92: 7 Advanced Unicode Handling 7.1 Imp
Page 93 and 94: Composite characters and sequences.
Page 95 and 96: 7.2.2 Filters for Granularity Word
Page 97 and 98: 7.3 Unicode Postprocessing TET offe
Page 99 and 100: Default foldings. Except for granul
Page 101 and 102: Compatibility decomposition. Charac
Page 103 and 104: In contrast, the following option l
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Table 7.7 Unicode normalization for
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7.5 Unicode Mapping for Glyphs Whil
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Fig. 7.2 Sample font reports create
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glyphmapping {{fontname=Warnock* to
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8 Image Extraction 8.1 Image Extrac
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8.2 Image Merging and Filtering Ima
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8.3 Placed Images and Image Resourc
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8.5 Geometry of Placed Images Using
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8.6 Restrictions and Caveats Image
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Various elements and attributes in
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c h e n 126 Chapter 9: TET Markup
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tet --tetml wordplus file.pdf With
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Object ’objects[49]/Subtype’ do
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Table 9.3 TETML elements and attrib
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9.4 Transforming TETML with XSLT Ve
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document containing the xml process
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[TheSansBold-Plain/13.98] 1 [TheSan
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10 TET Library API Reference 10.1 O
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List containing one option list wit
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Unicode sets. Unicode sets and can
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10.4 Geometric Types Rectangle. A r
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Table 10.2 Global options for TET_s
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10.6.2 Setup C TET *TET_new(void) C
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C++ int delete_pvf(wstring filename
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10.6.4 Unicode Conversion Function
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10.6.5 Exception Handling C++ wstri
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10.6.6 Logging The logging feature
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10.7 Document Functions C++ int ope
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Table 10.8 Document options for TET
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Table 10.8 Document options for TET
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Table 10.9 Suboptions for the glyph
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10.8 Page Functions C++ int open_pa
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Table 10.10 Page options for TET_op
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Table 10.11 Suboptions for the cont
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Table 10.12 Suboptions for the layo
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10.9 Text and Metrics Retrieval Fun
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Bindings C and C++ language binding
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10.10 Image Retrieval Functions C++
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C++ int write_image_file(int doc, i
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10.11 TET Markup Language (TETML) F
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Java and .NET language bindings: th
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estricted pCOS mode if nocopy=false
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10.12 pCOS Functions 191
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Image Retrieval Functions Function
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Index A annotations 71 API referenc
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TET command-line tool 17 TET connec
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