PDFClown - PDF library

PDFClown is a PDF library helps to generate, read and edit PDF. It helps to split and merge the PDF documents. It has support to add Images, Fonts, Barcodes, Bookmarks, Annotations, Form fields like check box, button, list box etc, Compression, text extraction. It has .NET version developed for mono.

Source forge: http://sourceforge.net/projects/clown/