PDFjet - Open Source Edition

A library for dynamic generation of PDF documents from C# and VB.NET
Drawing support for:
    * Points
    * Lines
    * Boxes
    * Circles
    * Bezier Curves
    * Polygons
    * Stars
    * Complex paths and shapes
Text
    * Unicode support
    * Text kerning when using the Helvetica and Times-Roman families of core fonts
    * Embedding hyperlinks
    * Support for embedding OpenType and TrueType fonts
    * Support for the fonts included with Reader 7.0 and Reader 8.0 installations
Embedding of the following types of images:
    * PNG
    * JPEG
    * GIF
High level components:
    * Simple to use Table class with flexible reporting capabilities
    * Flexible Chart component with support for scatter plots and lines
    * TextColumn component with text kerning and justification support
    * Support for Code 128 barcodes
    * Support for PDF417 2D barcodes

Go to http://pdfjet.com/os/edition.html

See also these related projects.