Release 1.9 contains all 1.8.* hot fixes and new features.
The most important features are:
- Merging cells in a table.
- Splitting cells in a table.
- Support for reading headers, footers, page number and automatic date/time fields.
- Implemented new autoshape types.
- Enhanced support for polylines.
- Added support for transparent color for pictures.
- Recolor property for picture frames with metafile.
- Added possibilty to delete all unused master slides from a presentation.
- Correct detecting unsupported PowerPoint formats.
- Read/write support for custom tags for slides and shapes.
- Possibility to get number of the first slide in a presentation.
- Support for non-standard text holders.
- Added new gradient fill styles.