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documentation [2018/08/04 15:51]
christian created 		documentation [2021/07/13 16:08] (current)
christian [About the library]
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-===== Documentation =====+===== Documentation for the PDFtalk library =====
  
 The {{pdf:pdf32000_2008.pdf|PDF specification}} is extensive. The implementation covers the core mechanisms to read and write PDF objects in a conforming way. This is comparable to the virtual machine and core classes in Smalltalk. Many of the PDF features and possibilities are implemented by sets of PDF types and a clear definition of their structure and interplay. This compares to class libraries in Smalltalk. The {{pdf:pdf32000_2008.pdf|PDF specification}} is extensive. The implementation covers the core mechanisms to read and write PDF objects in a conforming way. This is comparable to the virtual machine and core classes in Smalltalk. Many of the PDF features and possibilities are implemented by sets of PDF types and a clear definition of their structure and interplay. This compares to class libraries in Smalltalk.
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 Some simple features are implemented by the library apart from the core mechanisms. Many others are not. For an overview see [[Implementation|the state of the implementation]]. The documentation here is not comprehensive and covers only a few topics. Some simple features are implemented by the library apart from the core mechanisms. Many others are not. For an overview see [[Implementation|the state of the implementation]]. The documentation here is not comprehensive and covers only a few topics.
 +
 +==== Using the library ====
 +
 +  * [[PaintingAPage|Text]] Shows how to put text on a page.
 +
 +  * [[Colors]] Usage of colorspaces and colors
 +
 +  * [[Images]] Bitmapped images in PDF
 +
 +  * [[Changing]] Changing existing PDFs
 +
 +  * [[Examples]] Various examples of Smalltalk generated PDF documents.
 +
 +==== About the library ====
 +
 +  * [[Implementation]] Notes the state of the implementation of the features structured along the specification chapters.
 +
 +  * [[Typing]] PDF attributes are typed. To make use of this, the typing system was implemented. Since this is complex, it deserves its own topic.
 +
 +  * [[Extending]] How to add a new PDF Object to the library from the specification.
 +
 +  * [[Monsters]] Some PDF writers are not implementing the specification properly. Some of the problems encountered in the wild are dicussed here.
 +==== Related projects ====
 +
 +  * [[PDFtalk4Gemstone|PDFtalk for Gemstone]] A port of the library to Gemstone.
 +
 +  * [[GemstoneFileout|Gemstone Fileout]] Tool for porting VW code to Gemstone
 +
 +  * [[complexvalues|Complex Values]] The paper and slides about the basic values framework.
 +
 +
 +Brief descriptions of the releases are documented in the [[History]] of the project.
 +
  • documentation.1533390713.txt.gz
  • Last modified: 2018/08/04 15:51
  • by christian