PDFlib Text Extraction Toolkit (TET) Manual

4.4 TET Connector for Oracle 49
4.5 TET PDF IFilter for Microsoft Products 52
4.6 TET Connector for the Apache TIKA Toolkit 54
4.7 TET Connector for MediaWiki 56
5 Configuration 59
5.1 Extracting Content from protected PDF 59
5.2 Resource Configuration and File Searching 61
5.3 Recommendations for common Scenarios 65
6 Text Extraction 69
6.1 PDF Document Domains 69
6.2 Page and Text Geometry 73
6.3 Chinese, Japanese, and Korean Text 79
6.3.1 CJK Encodings and CMaps 79
6.3.2 Word Boundaries for CJK Text 79
6.3.3 Vertical Writing Mode 79
6.3.4 CJK Decompositions: Narrow, wide, vertical, etc. 80
6.4 Bidirectional Arabic and Hebrew Text 82
6.4.1 General Bidi Topics 82
6.4.2 Postprocessing Arabic Text 82
6.5 Content Analysis 84
6.6 Layout Analysis 88
7 Advanced Unicode Handling 91
7.1 Important Unicode Concepts 91
7.2 Unicode Preprocessing (Filtering) 94
7.2.1 Filters for all Granularities 94
7.2.2 Filters for Granularity Word and above 95
7.3 Unicode Postprocessing 97
7.3.1 Unicode Folding 97
7.3.2 Unicode Decomposition 100
7.3.3 Unicode Normalization 104
7.4 Supplementary Characters and Surrogates 106
7.5 Unicode Mapping for Glyphs 107
8 Image Extraction 113
8.1 Image Extraction Basics 113
8.2 Image Merging and Filtering 115
8.3 Placed Images and Image Resources 117
8.4 Page-based and Resource-based Image Loops 118
8.5 Geometry of Placed Images 119
4 Contents