PDFlib 8 Windows COM/.NET Tutorial

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Table 6.2 Complex scripts and keywords for the script option writing system script name language/region (incomplete list) script keyword unspecified script – _none automatic script detection – This keyword selects the script to which the majority of characters in the text belong, where _latn and _none are ignored. _auto European Alphabetic Latin many European and other languages latn Greek Greek grek Cyrillic Russian and many other Slavic languages cyrl Middle Eastern Arabic Arabic, Persian (Farsi), Urdu, Pashto and others arab Hebrew Hebrew, Yiddish and others hebr Syriac Syrian Orthodox, Maronite, Assyrian syrc Thaana Dhivehi/Maldives thaa South Asian (India) Devanagari Hindi and classical Sanskrit deva Bengali Bengali, Assamese beng Gurmukhi Punjabi guru Gujarati Gujarati gujr Oriya Oriya/Orissa orya Tamil Tamil/Tamil Nadu, Sri Lanka taml Telugu Telugu/Andrha Pradesh telu Kannada Kannada/Karnataka knda Malayalam Malayalam/Kerala mlym Southeast Asian Thai Thai thai Lao Lao »lao « 1 Khmer Khmer (Cambodian) khmr East Asian Han Chinese, Japanese, Korean hani Hiragana Japanese hira Katakana Japanese kana Hangul Korean hang others Other four-character codes according to the OpenType specification also work, but are not supported. The full list can be found at the following location: www.microsoft.com/typography/developers/OpenType/scripttags.aspx 1. Note the trailing space character. 164 Chapter 6: Text Output (Edition for COM, .NET, and REALbasic)
Requirements for shaping. A font for use with complex script shaping must meet the following requirements in addition to containing glyphs for the target script: > It must be a TrueType or OpenType font with GDEF, GSUB, and GPOS feature tables and correct Unicode mappings appropriate for the target script. As an alternative to the OpenType tables, for the Arabic and Hebrew scripts, the font may contain glyphs for the Unicode presentation forms (e.g. Arabic Apple fonts are constructed this way). In this case internal tables will be used for the shaping process. For Thai text the font must contain contextual forms according to Microsoft, Apple, or Monotype Worldtype (e.g. used in some IBM products) conventions for Thai. > If standard CJK fonts are to be used, the corresponding font file must be available. > The font must be loaded with encoding=unicode or glyphid. > The monospace and vertical options of load_font( ) must not be used, and the readshaping option must not be set to false. > If the fallbackfonts option of load_font( ) was used, text in a single text run must not contain glyphs from a fallback font. 6.4.2 Script and Language Script and language settings play a role the functional aspects listed below. They can be controlled with the following options: > The script text option identifies the target script (writing system). It supports the four-letter keywords listed in Table 6.2. Examples: script=latn script=cyrl script=arab script=hebr script=deva script={lao } With script=_auto PDFlib automatically assigns that script to which the majority of characters in the text belong. Since Latin text doesn’t require shaping it will not be counted when determining the script automatically. You can query the scripts used for some text with the scriptlist keyword of info_ textline( ). > The language option specifies the natural language in which the text is written. It supports the three-character keywords listed in Table 6.3. Examples: language=ARA language=URD language=ZHS language=HIN Complex script processing. Complex script processing (option shaping) requires the script option. The language option can additionally be supplied. It controls languagespecific aspects of shaping, e.g. different figures for Arabic vs. Urdu. However, only few fonts contain language-specific script shaping tables, so in most cases specifying the script option will be sufficient, and shaping cannot be improved with the language option. OpenType layout features. Fonts can implement OpenType layout features in a language-specific manner (see »Script- and language-specific OpenType layout features«, 6.4 Complex Script Output 165
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ABC PDFlib, PDFlib+PDI, PPS A libra
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Contents 0 Applying the PDFlib Lice
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5.2 Unicode Characters and Glyphs 1
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8.4 Matchboxes 243 8.4.1 Decorating
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0 Applying the PDFlib License Key R
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Licensing options. Different licens
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1 Introduction 1.1 Roadmap to Docum
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1.2 PDFlib Programming What is PDFl
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1.3 What’s new in PDFlib/PDFlib+P
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1.3.3 PDFlib Block Plugin and PDFli
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1.4 Features in PDFlib Table 1.1 li
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Table 1.1 Feature list for PDFlib t
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1.6 Additional Features in PPS Tabl
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2 PDFlib Language Bindings Note It
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2.3 COM Binding COM (Component Obje
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Supply your license key at runtime
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eference calls for an int type argu
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2.5 C++ Binding (This section is on
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2.7 .NET Binding Note Detailed info
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2.8 Objective-C Binding (This secti
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2.10 PHP Binding (This section is o
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2.12 REALbasic Binding Installing t
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2.14 Ruby Binding (This section is
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3 Creating PDF Documents 3.1 Genera
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Enable warning logging in the devel
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Table 3.1 Resource categories suppo
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myencoding=myencoding.enc . ICCProf
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2 GB file size limit: The PDF/A-1 s
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Visualizing coordinates. In order t
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Table 3.2 Minimum and maximum page
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Instead of creating a path object w
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Proxy for the target page. PDFlib c
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3.3.2 Protecting Documents with PDF
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3.4 Web-Optimized (Linearized) PDF
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Cookbook A full code sample can be
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HKS® colors. The HKS color system
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Use the file name determined in the
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3.6 Interactive Elements Cookbook C
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3.7 Georeferenced PDF Cookbook A fu
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Examples for projected coordinate s
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4 Unicode and Legacy Encodings This
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4.2 Single-Byte (8-Bit) Encodings 8
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exclam 33 0x0021 ... If no Unicode
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p.set_parameter("SearchPath", "/pat
Page 93 and 94: Objective-C > Python > REALbasic >
Page 95 and 96: If an escape sequence cannot be res
Page 97 and 98: Character references are not substi
Page 99 and 100: 5 Font Handling 5.1 Font Formats 5.
Page 101 and 102: SING fonts usually contain only a s
Page 103 and 104: 5.2 Unicode Characters and Glyphs 5
Page 105 and 106: complex script shaping and OpenType
Page 107 and 108: 5.3.2 Converting Unicode Values to
Page 109 and 110: 5.4 Loading Fonts 5.4.1 Selecting a
Page 111 and 112: Glyphid encoding. PDFlib supports e
Page 113 and 114: If you know the character code you
Page 115 and 116: TrueType and OpenType fonts. The fo
Page 117 and 118: .tte .ttf .otf .gai .afm .pfm .ttc
Page 119 and 120: The keywords are case-insensitive.
Page 121 and 122: Caveats. Note the following when wo
Page 123 and 124: Add Gaiji characters to a font. Thi
Page 125 and 126: Legal aspects of font embedding. It
Page 127 and 128: 5.6 Querying Font Information info_
Page 129 and 130: Query the font-specific name of a g
Page 131 and 132: 6 Text Output 6.1 Text Output Metho
Page 133 and 134: descender = p.info_font(font, "desc
Page 135 and 136: Cookbook A full code sample can be
Page 137 and 138: 6.3 OpenType Layout Features Cookbo
Page 139 and 140: Table 6.1 Supported OpenType featur
Page 141 and 142: will prevent them from being replac
Page 143: 6.4 Complex Script Output Cookbook
Page 147 and 148: 6.4.3 Complex Script Shaping The sh
Page 149 and 150: You can use the writingdirx keyword
Page 151 and 152: 6.5 Chinese, Japanese, and Korean T
Page 153 and 154: The keepnative option is false by d
Page 155 and 156: The vert feature (vertical writing)
Page 157 and 158: 7 Importing Images and PDF Pages PD
Page 159 and 160: String optlist13 = "OPI-1.3 { ALDIm
Page 161 and 162: GIF images. PDFlib supports all GIF
Page 163 and 164: channels which are identified by na
Page 165 and 166: In order to colorize an image with
Page 167 and 168: You can not re-use individual eleme
Page 169 and 170: Encrypted PDF documents without the
Page 171 and 172: Positioning an image in the box. We
Page 173 and 174: Fig. 7.4 The rotate option Fig. 7.5
Page 175 and 176: Fig. 7.8 Adjusting the page size. L
Page 177 and 178: 8 Text and Table Formatting 8.1 Pla
Page 179 and 180: Generated output Option list for fi
Page 181 and 182: To illustrate the size of the match
Page 183 and 184: Long Distance Glider with sensation
Page 185 and 186: 8.2 Multi-Line Textflows In additio
Page 187 and 188: normal text. Font, font size, and e
Page 189 and 190: leftindent = 15 parindent = 20 lead
Page 191 and 192: Explicitly setting options. Note th
Page 193 and 194: leftindent = &indent parindent = -
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To fold the famous rocket looper pr
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8.2.8 Controlling the standard Line
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Our paper planes are the ideal way
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French text. As a result, the guill
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String imageoptlist = "scale=2"; p.
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8.3 Table Formatting The table form
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tbl = p.add_table_cell(tbl, 1, 1, "
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In addition, we want the baseline o
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8.3.3 Table and Column Widths When
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if (tbl == -1) throw new Exception(
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esult = p.fit_table(tbl, llx, lly,
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Figure 8.38 shows how the Textflow
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Continue the table in the next fitb
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To increase the box height to match
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Fig. 8.43 Using the image matchbox
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9 The pCOS Interface The pCOS (PDFl
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10 PDF Versions and Standards 10.1
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Table 10.1 PDFlib features which re
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10.3 PDF/X for Print Production 10.
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Table 10.2 Operations which must be
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10.3.3 Output Intent and Standard O
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Table 10.5 Compatible PDF/X input l
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10.4.2 Generating PDF/A-conforming
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Additional requirements and restric
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While PDFlib can correct certain it
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Table 10.13 Predefined XMP schemas
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tree is created in multiple travers
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All parts of a Textflow (all calls
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* 1 create header */ p.set_text_pos
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Acrobat’s Accessibility Checker.
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11 PPS and the PDFlib Block Plugin
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11.2 Overview of the Block Concept
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Table 11.1 Comparison of PDF form f
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Fig. 11.1 Visualization of Blocks I
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Fig. 11.3 Grid preferences in Acrob
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Note Do not confuse the default val
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PDFlib Blocks choose PDFlib Blocks,
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If you do not want to keep the conv
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Fig. 11.4 Preview PDF for the conta
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PDF/X-3:2002, PDF/X-3:2003 PDF/X-4,
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Placing the imported page on top of
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The third method, i.e. filling a PD
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11.6.2 Rectangle Properties Rectang
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Table 11.7 Text appearance properti
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11.6.5 Text Formatting Properties T
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Table 11.9 Text formatting properti
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Table 11.11 Fitting properties for
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11.6.7 Properties for default Conte
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Querying custom properties. Custom
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Data types for Block properties. Pr
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endobj /Name /job_title /Subtype /T
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A Revision History Date Changes Jun
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Index A Acrobat plugin for creating
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N name strings 108 in non-Unicode c
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ABC PDFlib GmbH Franziska-Bilek-Weg
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PDFlib 8 Windows COM/.NET Tutorial

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