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libpdf++ Design Note

This document will describe the internal design of libpdf++. It will explain the classes and their responsibilies among them.

and Dependencies

There are 7 packages of classes in libpdf++. There are:

pdf::util

This the utilities package. It contains helper classes and data structures not directly related to PDF.

pdf::core

This is the core PDF package. It contains the basic hierachy of PDF objects. A PDF file is consists of these basic PDF objects.

pdf::common

This package contains PDF related helper classes and data structures. Unlike the pdf::util package, this package depends on the pdf::core package.

pdf::graph

This package contains classes for graphical elements inside the PDF document.

pdf::font

This package contains the font related classes, which encapsulate the fonts operations on PDF documents.

pdf::text

This package contains classes for textual elements inside the PDF document.

pdf::page

This package contains the contents of the document.

of the libpdf++ Classes

The "main" class in libpdf++ is of course the CDoc class. It represent a PDF document. It contains all data structures nessecary to create a PDF file. Most document wide operations acts on this class.

The CDoc contain a list of CPage objects, which represents a page in the document. The order of the pages is the same as the order in this list.

Classes are Involved When Creating a PDF File

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