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Fig. 7.48 Using the image matchbox to draw a frame around the imageGenerated output Option list for PDF_fit_image( )boxsize={60 60} position={center} fitmethod=meetmatchbox={name=kraxi borderwidth=4 offsetleft=-2 offsetright=2offsetbottom=-2 offsettop=2 linecap=round linejoin=roundstrokecolor {rgb 0.0 0.3 0.3}}Align text at an image. The following code fragment shows how to align vertical textat the right margin of an image. The image is proportionally fit into the supplied boxwith a fit method of meet. The actual coordinates of the fitbox are retrieved with PDF_info_matchbox( ) and a vertical text line is placed relative to the lower right (x2, y2) cornerof the fitbox. The border of the matchbox is stroked (see Figure 7.49).Cookbook A full code sample can be found in the Cookbook topic images/align_text_at_image./* use this option list to load and fit the image */String optlist = "boxsize={300 200} position={center} fitmethod=meet " +"matchbox={name=giantwing borderwidth=3 strokecolor={rgb 0.85 0.83 0.85}}";/* load and fit the image */.../* retrieve the coordinates of the lower right (second) matchbox corner */if ((int) p.info_matchbox("giantwing", 1, "exists") == 1){x1 = p.info_matchbox("giantwing", 1, "x2");y1 = p.info_matchbox("giantwing", 1, "y2");}/* start the text line at that corner with a small distance of 2 */p.fit_textline("Foto: Kraxi", x2+2, y2+2, "font=" + font + " fontsize=8 orientate=west");Fig. 7.49 Use the coordinates of the image matchbox to fit a text lineGenerated outputGeneration stepsFoto: Kraxi(x2, y2)Step 1: Fit image with matchboxStep 2: Retrieve matchbox info for coordinates (x2, y2)Step 3: Fit text line starting at retrieved coordinates (x2, y2) with optionorientate=west180 Chapter 7: Formatting Features
8 The pCOS InterfaceThe pCOS (PDFlib Comprehensive Object Syntax) interface provides a simple and elegantfacility for retrieving arbitrary information from all sections of a PDF document whichdo not describe page contents, such as page dimensions, metadata, interactive elements,etc. pCOS users are assumed to have some basic knowledge of internal PDF structuresand dictionary keys, but do not have to deal with PDF syntax and parsing details.We strongly recommend that pCOS users obtain a copy of the PDF Reference, which isavailable as follows:Adobe Systems Incorporated: PDF Reference, Sixth Edition: Version 1.7. <strong>Download</strong>ablePDF from www.adobe.com/devnet/pdf/pdf_reference.html.8.1 Simple pCOS ExamplesCookbook A collection of pCOS coding fragments for solving specific problems can be found in thepCOS Cookbook.Assuming a valid PDF document handle is available, the pCOS functions PDF_pcos_get_number( ), PDF_pcos_get_string( ), and PDF_pcos_get_stream( ) can be used to retrieve informationfrom a PDF using the pCOS path syntax. Table 8.1 lists some common pCOSpaths and their meaning.Table 8.1 pCOS paths for commonly used PDF objectspCOS path type explanationlength:pages number number of pages in the document/Info/Title string document info field Title/Root/Metadata stream XMP stream with the document’s metadatafonts[...]/name string name of a font; the number of entries can be retrieved with length:fontsfonts[...]/embedded boolean embedding status of a fontpages[...]/width number width of the visible area of the pageNumber of pages.The total number of pages in a document can be queried as follows:pagecount = p.pcos_get_number(doc, "length:pages");Document information fields can be retrieved with the follow-Document info fields.ing code sequence:objtype = p.pcos_get_string(doc, "type:/Info/Title");if (objtype.equals("string")){/* Document info key found */title = p.pcos_get_string(doc, "/Info/Title");}Page size. Although the MediaBox, CropBox, and Rotate entries of a page can directly beobtained via pCOS, they must be evaluated in combination in order to find the actual8.1 Simple pCOS Examples 181
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PDFlib GmbH München, Germanywww.pd
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Contents0 Applying the PDFlib Licen
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5.6.1 Standard CJK Fonts 1165.6.2 C
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10.2.2 Block Properties 22710.2.3 W
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0 Applying the PDFlib License KeyAl
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Licensing options. Different licens
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PDFlib TET (Text Extraction Toolkit
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PDFlib can be integrated directly i
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Improved handling of Chinese, Japan
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1.4 Features in PDFlib/PDFlib+PDI/P
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1.5 Availability of Features in dif
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24 Chapter 1: Introduction
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2.2 COM Binding(This section is onl
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necessary. After fatal exceptions t
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2.4 C++ BindingIn addition to the p
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PDFlib servlets and Java applicatio
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2.6 .NET Binding(This section is on
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More than one way of String handlin
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PHP on Windows will find files with
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2.10 REALbasic Binding 1(This secti
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Now you can compile your program us
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2.13 Tcl BindingInstalling the PDFl
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Error policies. When PDFlib detects
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plied), but only the corresponding
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name exactly as supplied and try to
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3.1.4 Generating PDF Documents in M
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3.2 Page Descriptions3.2.1 Coordina
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In order to facilitate the use of t
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Merely constructing a path doesn’
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3.3 Working with ColorNote The PDFl
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where is the identifier of the col
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Rendering Intents. Although PDFlib
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p.set_parameter("errorpolicy", "ret
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with a thin black border. Initially
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}p.begin_page_ext(pagewidth, pagehe
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Table 3.5 Parameters for the JavaSc
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4.2 Important Unicode ConceptsChara
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4.3 Strings in PDFlib4.3.1 String T
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EBCDIC UTF-8 BOM). If the usehypert
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values 0x7B and 0x7D must be preced
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Table 4.4 Availability of glyphs fo
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exclam 33 0x0021...If no Unicode va
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Table 4.5 Predefined CMaps for Japa
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4.6 Addressing Characters and Glyph
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Table 4.8 Control characters and th
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glyphcheck=replace: silent approach
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94 Chapter 4: Unicode and Legacy En
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5.1.2 Font EncodingsAll fonts for t
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5.2 Font Format Details5.2.1 PostSc
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the contents of the characters in a
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Path resource category (again, the
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When working with host fonts it is
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Note The Leopard builds of PDFlib (
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put by default. For encodings which
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5.4.2 Glyph ID Addressing for TrueT
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5.5 Font Metrics and Text Variation
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Temporarily disabling kerning may b
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5.6 Chinese, Japanese, and Korean F
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CJK host font names on Windows can
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120 Chapter 5: Font Handling
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tion) if the user coordinate system
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color: black and white, grayscale,
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PDFlib supports three kinds of tran
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BMP> PNG> JPEG> TIFF> GIFFor images
Page 130 and 131: 6.2 Importing PDF Pages with PDI (P
Page 132 and 133: Alternatively, you can use the pdiu
Page 134 and 135: 20Kraxitext on top right of the box
Page 136 and 137: can be used. In Figure 7.5h the tex
Page 138 and 139: 7.1.5 Placing a StampCookbook A ful
Page 140 and 141: 7.2 Multi-Line TextflowsIn addition
Page 142 and 143: piece of normal text. Font, font si
Page 144 and 145: leftindent = 15parindent = 20leadin
Page 146 and 147: hortabmethod rulertabalignment left
Page 148 and 149: leftindent = &indentparindent = - &
Page 150 and 151: To fold the famous rocket looper pr
Page 152 and 153: Our paper planes are the ideal way
Page 154 and 155: Our paper planesare the ideal way o
Page 156 and 157: p.fit_textflow(textflow, left_x, le
Page 158 and 159: 7.3 Placing Images and Imported PDF
Page 160 and 161: Fig. 7.28 Fitting an image into a b
Page 162 and 163: Fitting an oriented image into a bo
Page 164 and 165: 7.4 Table FormattingThe table forma
Page 166 and 167: tbl = p.add_table_cell(tbl, 1, 1, "
Page 168 and 169: cell border as the Material text. T
Page 170 and 171: those width values will implicitly
Page 172 and 173: column defining a column width of 1
Page 174 and 175: The table in Figure 7.42 is spread
Page 176 and 177: Splitting a row. If the last body d
Page 178 and 179: To increase the box height to match
Page 182 and 183: size of a page. Determining the pag
Page 184 and 185: 8.3 Composite Data Structures and I
Page 186 and 187: Table 8.2 pCOS path prefixesprefixl
Page 188 and 189: Table 8.3 Universal pseudo objectso
Page 190 and 191: Table 8.4 Pseudo objects for PDF ob
Page 192 and 193: Table 8.5 Pseudo objects for resour
Page 194 and 195: 194 Chapter 8: The pCOS Interface
Page 196 and 197: Table 9.2 PDFlib features for PDF 1
Page 198 and 199: to disable any access restrictions.
Page 200 and 201: Table 9.4 Access restriction keywor
Page 202 and 203: 9.4 PDF/X for Print Production9.4.1
Page 204 and 205: Table 9.6 Operations which must be
Page 206 and 207: work as a full PDF/X validator or t
Page 208 and 209: 9.5.2 Generating PDF/A-conforming O
Page 210 and 211: Table 9.11 Additional requirements
Page 212 and 213: This statement will retrieve a stri
Page 214 and 215: Table 9.16 Predefined XMP schemas f
Page 216 and 217: 9.6 Tagged PDFTagged PDF is a certa
Page 218 and 219: quired, but will enhance the qualit
Page 220 and 221: * 1 create top part of left column
Page 222 and 223: optlist = "Title=Insert parent=" +
Page 224 and 225: exported to other formats. If the A
Page 226 and 227: Click Add... and select the PDFlib
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10.3 Using the PDFlib Block Plugin
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next step other objects which are p
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Use Ctrl-V (on Windows) or Cmd-V (o
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Associating form fields with corres
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Property overrides can be achieved
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10.5 Standard Properties for Automa
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10.5.2 Text PropertiesText-related
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Table 10.6 Textflow block propertie
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Table 10.6 Textflow block propertie
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10.6 Querying Block Names and Prope
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10.7 PDFlib Block SpecificationThe
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Example. The following fragment sho
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254 Chapter 10: Variable Data and B
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256
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Ffeatures of PDFlib 20fill 57font m
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TrimBox 57TrueType fonts 95TTC (Tru
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