PDFlib Text Extraction Toolkit (TET) Manual

More documents

Recommendations

Info

Table 10.16 Members of the TET_image_info structure (C, C++, Ruby), equivalent public fields (Java, PHP, Objective-C), and properties (COM and .NET) with their type and meaning. See »Image Extraction Basics«, page 113, for more details. property/ field name explanation x, y (Double) Position of the image’s reference point. The reference point is the lower left corner of the image. width, height alpha beta imageid (Double) Width and height of the image on the page in points, measured along the image’s edges (Double) Direction of the pixel rows. The angle will be in the range -180° < alpha ³ +180°. For upright images alpha will be 0°. (Double) Direction of the pixel columns, relative to the perpendicular of alpha. The angle will be in the range -180° < beta ³ +180°, but different from ±90°. For upright images beta will be in the range -90° < beta 90° the image will be mirrored at the baseline. (Integer) Index of the image in the pCOS pseudo object images[ ]. Detailed image properties can be retrieved via the entries in this pseudo object (see the pCOS Path Reference). 182 Chapter 10: TET Library API Reference
C++ int write_image_file(int doc, int imageid, wstring optlist) C# Java int write_image_file(int doc, int imageid, String optlist) Perl PHP long write_image_file(long doc, long imageid, string optlist) VB RB Function write_image_file(doc As Long, imageid As Long, optlist As String) As Long C int TET_write_image_file(TET *tet, int doc, int imageid, const char *optlist) Write image data to disk. doc A valid document handle obtained with TET_open_document*( ). imageid The pCOS ID of the image. This ID can be retrieved from the imageid field after a successful call to TET_get_image_info( ), or by looping over all entries in the images pseudo object (there are length:images entries in this array). optlist An option list specifying page options according to Table 10.17. The following options can be used: compression, filename, keepiccprofile, keepxmp, typeonly. Returns Details Bindings -1 on error, or a value greater than 0 otherwise. If -1 is returned it is recommended to call TET_get_errmsg( ) to find out more details about the error. No image output will be created in case of an error. The rare case of images in an unsupported format will also be reported as an error. If the return value is different from -1 it indicates that the image can be extracted in the file format indicated by the return value: > -1: an error occurred; no image will be extracted > 10: image extracted as TIFF (.tif) > 20: image extracted as JPEG (.jpg) > 30: image extracted as JPEG 2000 (.jpx) > 40: image extracted as raw pixel data (.raw) > 50: image extracted as JBIG2 (.jbig2) This function will convert the pixel data for the image with the specified pCOS ID to one of several image formats, and write the result to a disk file. If the typeonly option has been supplied, only the image type will be returned, but no image file will be generated. C/C++: macros for the return values are available in tetlib.h. Table 10.17 Options for TET_write_image_file( ) and TET_get_image_data( ) option compression filename 1 keepiccprofile keepxmp description (Keyword) The algorithm for compressing the pixel data (default: auto): auto select a suitable compression algorithm automatically none (Only relevant for TIFF images) Write the pixel data without any compression if possible. (String; required unless typeonly is also supplied) The name of the image file on disk. A suffix will be added to the filename to indicate the image file format. The following file name pattern is recommended to match the Image/@id attribute in TETML: I Here imageid is the decimal representation of the imageid parameter. (Boolean) If true and an ICC profile is assigned to the image, the ICC profile is embedded in extracted TIFF and JPEG images. Setting this option to false may result in smaller image files, but sacrifices color management.Default: true (Boolean) If true and the image has associated XMP metadata in the PDF, the metadata will be embedded in extracted TIFF and JPEG images. Default: true 10.10 Image Retrieval Functions 183
Page 1 and 2:
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 54 and 55:
4.6 TET Connector for the Apache TI
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
Page 105 and 106:
Table 7.7 Unicode normalization for
Page 107 and 108:
7.5 Unicode Mapping for Glyphs Whil
Page 109 and 110:
Fig. 7.2 Sample font reports create
Page 111 and 112:
glyphmapping {{fontname=Warnock* to
Page 113 and 114:
8 Image Extraction 8.1 Image Extrac
Page 115 and 116:
8.2 Image Merging and Filtering Ima
Page 117 and 118:
8.3 Placed Images and Image Resourc
Page 119 and 120:
8.5 Geometry of Placed Images Using
Page 121:
8.6 Restrictions and Caveats Image
Page 124 and 125:
Various elements and attributes in
Page 126 and 127:
c h e n 126 Chapter 9: TET Markup
Page 128 and 129:
tet --tetml wordplus file.pdf With
Page 130 and 131:
Object ’objects[49]/Subtype’ do
Page 132 and 133: Table 9.3 TETML elements and attrib
Page 134 and 135: 9.4 Transforming TETML with XSLT Ve
Page 136 and 137: document containing the xml process
Page 138 and 139: [TheSansBold-Plain/13.98] 1 [TheSan
Page 141 and 142: 10 TET Library API Reference 10.1 O
Page 143 and 144: List containing one option list wit
Page 145 and 146: Unicode sets. Unicode sets and can
Page 147 and 148: 10.4 Geometric Types Rectangle. A r
Page 149 and 150: Table 10.2 Global options for TET_s
Page 151 and 152: 10.6.2 Setup C TET *TET_new(void) C
Page 153 and 154: C++ int delete_pvf(wstring filename
Page 155 and 156: 10.6.4 Unicode Conversion Function
Page 157 and 158: 10.6.5 Exception Handling C++ wstri
Page 159 and 160: 10.6.6 Logging The logging feature
Page 161 and 162: 10.7 Document Functions C++ int ope
Page 163 and 164: Table 10.8 Document options for TET
Page 165 and 166: Table 10.8 Document options for TET
Page 167 and 168: Table 10.9 Suboptions for the glyph
Page 169 and 170: 10.8 Page Functions C++ int open_pa
Page 171 and 172: Table 10.10 Page options for TET_op
Page 173 and 174: Table 10.11 Suboptions for the cont
Page 175 and 176: Table 10.12 Suboptions for the layo
Page 177 and 178: 10.9 Text and Metrics Retrieval Fun
Page 179 and 180: Bindings C and C++ language binding
Page 181: 10.10 Image Retrieval Functions C++
Page 185 and 186: 10.11 TET Markup Language (TETML) F
Page 187 and 188: Java and .NET language bindings: th
Page 189 and 190: estricted pCOS mode if nocopy=false
Page 191: 10.12 pCOS Functions 191
Page 194 and 195: Image Retrieval Functions Function
Page 197 and 198: Index A annotations 71 API referenc
Page 199 and 200: TET command-line tool 17 TET connec
show all

PDFlib Text Extraction Toolkit (TET) Manual

Create successful ePaper yourself

Delete template?

Save as template?