I switched to NXPowerLite after being an Adobe Acrobat Pro user for many years. We publish image-intensive newsletters via email and having quality pdf compression capability is essential. The ability to choose the amount of image compression for each project is a wonderful feature we truly appreciate and use all the time. We have found NXPowerLite to be reliable, stable and fast, and that it can provide a remarkable degree of file size reduction with little or no loss of visible image quality. Our only wish for a future version would be to allow for multi-page pdf assembly in the App. We now have to assemble multi-page newsletters in Apple Preview, save them as a multi-page pdf before compressing that document in NXPowerLite.