| ByteRange | This class represents a Byte Range. |
| Matrix2D | A Matrix2D object represents a 3x3 matrix that, in turn, represents
an affine transformation. |
| PDFNetIterator<T> | Supports a simple iteration over a non-generic collection. |
| RecentlyUsedCache | RecentlyUsedCache is a persistent cache that provides thumbnails for recently used documents in PDFNet. |
| PDFNetException | PDFNetException is derived from the standard exception class and it is a superclass for all PDFNet library exceptions. |