JagPDF is a library for generating PDF documents in C/C++, Python, and Java. It supports TrueType (subsetting) and standard 14 Type 1 fonts, font metrics, Unicode, UTF-8 and common 8-bit character encodings, images (JPEG, PNG, or custom), paths, color spaces (RGB, CMYK, CIE based, ICC profiles, indexed), encryption, bookmarks, hyperlinks, and more.
There are many instances when one needs to process certain objects on seperate threads. But spawning a seperate thread per object may cause the system to crash. The Thread Pooling Framework can be used to process the the objects on a predefined number of threads. If all threads are busy, the objects are kept in the pool. Whenever a thread ends, an objects is taken from the pool and processed on a new thread. This continues until the pool is empty.