iTextSharp

iTextSharp is a port of the iText library.

This version supports all the the original library's features, allowing .NET developers to use it with their projects.

This includes support for parsing/editing/generating text-based content, images, shapes, graphics, and a lot more, including niche objects like barcodes, QR codes, special font glyphs, masks, outlines and so on.

Just make sure to read the entire documentation, there are a lot of things you may be surprised to find in there.

Requirements:

• Microsoft .Net Framework 1.1 or higher
• Adobe Acrobat Reader