Help creating a PDF doc

[Dark_Tower]

Hi, I'm programing an application for the management (leveling and cut away the background) of digitalized images taken from the pages of old books. The last step of the processment is the creation of a PDF document with all the processed images (one image per page) to create the corresponding e-book (see the pics below). Well, I've tried to create the PDF document with the QPrinter class and "painting" the images on it using the QPainter class. The problem is that, doing it in this way, it doesn't include the original images and the resulting PDF doc is even larger than the group of images I would like to know if somebody knows a software (freeware if it's possible) that could comunicate with Qt and could create PDF docs from images, like I've already descripted. Thanks a lot.