The ReportLab Open Source PDF library is a proven industry-strength
python-based PDF generating solution, suitable for web publishers,
developers or creative design professionals who need to quickly and
easily create or automate complex (even data-driven) documents.
It is released by ReportLab Inc., under BSD license.

It has the following features:
- create professional portable documents
- real document layout engine (Platypus)
- flowable objects such as paragraphs, headlines, tables, images,
graphics, etc.
- arbitrary Type-1 fonts
- bitmap images, vector graphics
- library of reusable primitive shapes
- extensible widget library
- uses Python, a clean OO language
- layered architecture
- includes simple demos and more complex tools
- allows for any data sources
- fully available source code
- strong community support
- platform-independent
- includes PythonPoint - PDF Presentation Tool

If pil (Python Imaging library) is installed (it is available from
Slackbuilds.org too), reportlab can use it for working with bitmap
images.