PDFlib Text Extraction Toolkit (TET) Manual

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SQL> GRANT EXECUTE ON CTX_DOC TO HR; SQL> GRANT EXECUTE ON CTX_OUTPUT TO HR; SQL> GRANT EXECUTE ON CTX_QUERY TO HR; SQL> GRANT EXECUTE ON CTX_REPORT TO HR; SQL> GRANT EXECUTE ON CTX_THES TO HR; Example A: Store path names of PDF documents in the database. This example stores file name references to the indexed PDF documents in the database. Proceed as follows: > Change to the following directory in a command prompt: /connectors/Oracle > Adjust the tetpath variable in the tetsetup_a.sql script so that it points to the directory where TET is installed. > Prepare the database: using Oracle’s sqlplus program create the table pdftable_a, fill this table with path names of PDF documents, and create the index tetindex_a (note that the contents of the tetsetup_a.sql script are slightly platform-dependent because of different path syntax): SQL> @tetsetup_a.sql > Query the database using the index: SQL> select * from pdftable_a where CONTAINS(pdffile, 'Whitepaper', 1) > 0; > Update the index (required after adding more documents): SQL> execute ctx_ddl.sync_index('tetindex_a') > Optionally clean up the database (remove the index and table): SQL> @tetcleanup_a.sql Example B: Store PDF documents as BLOBs in the database and add metadata. This examples stores the actual PDF documents as BLOBs in the database. In addition to the PDF data some metadata is extracted with the pCOS interface and stored in dedicated database columns. The tet_pdf_loader Java program stores the PDF documents as BLOBs in the database. In order to demonstrate metadata handling the program uses the pCOS interface to extract the document title (via the pCOS path /Info/Title) and the number of pages in the document (via the pCOS path length:pages). The document title and the page count will be stored in separate columns in the database. Proceed as follows to run this example: > Change to the following directory in a command prompt: /connectors/Oracle > Prepare the database: using Oracle’s sqlplus program create the table pdftable_b and the corresponding index tetindex_b: SQL> @tetsetup_b.sql > Populate the database: fill the table with PDF documents and metadata via JDBC (note that this is not possible with stored procedures). The ant build file supplied with the TET package expects the ojdbc14.jar file for the Oracle JDBC driver in the same directory as the tet_pdf_loader.java source code. Specify a suitable JDBC connection string with the ant command. The build file contains a description of all properties that can be used to specify options for the Ant build. You can supply values for 42 Chapter 4: TET Connectors
these options on the command line. In the following example we use localhost as host name, port number 1521, xe as database name, and HR as user name and password (adjust as appropriate for your database configuration): ant -Dtet.jdbc.connection=jdbc:oracle:thin:@localhost:1521:xe -Dtet.jdbc.user=HR -Dtet.jdbc.password=HR > Update the index (required initially and after adding more documents): SQL> execute ctx_ddl.sync_index('tetindex_b') > Query the database using the index: SQL> select * from pdftable_b where CONTAINS(pdffile, 'Whitepaper', 1) > 0; > Optionally clean up the database (remove the index and table): SQL> @tetcleanup_b.sql 4.4 TET Connector for Oracle 43
Page 1 and 2: PDFlib GmbH München, Germany www.p
Page 3 and 4: Contents 0 First Steps with TET 7 0
Page 5: 10.9 Option Handling 151 10.10 pCOS
Page 8 and 9: 0.2 Applying the TET License Key Us
Page 11 and 12: 1 Introduction The PDFlib Text Extr
Page 13 and 14: may extract some text which is not
Page 15 and 16: 2 TET Command-Line Tool 2.1 Command
Page 17 and 18: Constructing TET command lines. The
Page 19 and 20: Extract images and generate TETML i
Page 21 and 22: 3 TET Library Language Bindings Thi
Page 23 and 24: TET_CATCH(tet) { printf("Error %d i
Page 25 and 26: 3.4 COM Binding Installing the TET
Page 27 and 28: 3.6 .NET Binding The .NET edition o
Page 29 and 30: 3.8 PHP Binding Installing the TET
Page 31 and 32: 3.9 Python Binding Installing the T
Page 33 and 34: Exception Handling in RPG. TET clie
Page 35 and 36: 4 TET Connectors TET connectors pro
Page 37 and 38: 4.2 TET Connector for the Lucene Se
Page 39 and 40: Indexing metadata fields. The TET c
Page 41: 4.4 TET Connector for Oracle The TE
Page 45 and 46: TET PDF IFilter is freely available
Page 47 and 48: tracts text and metadata from the P
Page 49 and 50: 5 Configuration 5.1 Indexing protec
Page 51 and 52: 5.2 Resource Configuration and File
Page 53 and 54: tet/3.0/resource /tet/3.0/resource/
Page 55 and 56: Geometry. The geometry features may
Page 57 and 58: 6 Text Extraction 6.1 Document Doma
Page 59 and 60: How to search with Acrobat 8/9: not
Page 61 and 62: 6.2 Unicode Concepts Unicode encodi
Page 63 and 64: artificial characters which will be
Page 65 and 66: width (x, y) beta fontsize baseline
Page 67 and 68: 6.4 Support for Chinese, Japanese,
Page 69 and 70: Options for text filtering. There a
Page 71 and 72: 6.6 Content Analysis PDF documents
Page 73 and 74: Dehyphenation. Hyphenated words at
Page 75 and 76: Table 6.3 Document styles docstyle=
Page 77 and 78: Fig. 6.5 Sample font reports create
Page 79 and 80: glyphmapping {{fontname=Warnock* to
Page 81 and 82: 7 Image Extraction 7.1 Image Extrac
Page 83 and 84: 7.2 Image Geometry Using TET_get_im
Page 85 and 86: 7.3 Image Analysis Image merging. S
Page 87 and 88: 7.4 Restrictions and Caveats Image
Page 89 and 90: 8 TET Markup Language (TETML) 8.1 C
Page 91 and 92: Depending on the sele
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You can specify the amount of text
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Table 8.3 TETML elements TETML elem
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8.4 Transforming TETML with XSLT Ve
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Run the program as follows: nxslt3.
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8.5 XSLT Samples The TET distributi
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Alphabetical list of words in the d
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9 The pCOS Interface The pCOS (PDFl
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9.2 Handling Basic PDF Data Types p
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9.3 Composite Data Structures and I
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Path prefixes. Prefixes can be used
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Table 9.3 Universal pseudo objects
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Table 9.4 Pseudo objects for PDF ob
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Table 9.5 Pseudo objects for resour
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9.6 Encrypted PDF Documents pCOS su
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10 TET Library API Reference 10.1 O
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10.2 General Functions Perl PHP res
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Returns Scope Bindings The converte
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10.3 Exception Handling C++ string
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10.4 Document Functions C++ int ope
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Table 10.3 Document options for TET
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C++ C int open_document_callback(vo
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Table 10.5 Page options for TET_ope
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Table 10.6 Suboptions for the conte
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Table 10.7 Suboptions for the layou
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Table 10.9 Suboptions for the struc
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C++ const TET_char_info *get_char_i
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10.7 Image Retrieval Functions C++
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C++ int write_image_file(int doc, i
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10.8 TET Markup Language (TETML) Fu
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10.9 Option Handling C++ void set_o
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10.10 pCOS Functions The full pCOS
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If the object has type stream all f
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A TET Library Quick Reference The f
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B Revision History Revision history
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unsupported types 87 XMP metadata 8
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