Avoid - waste of time and money

I tried this application on a PDF which was around 9Mb. After using the maximum compression, the size was nearly the same (8.4 Mb)!
Then using adobe acrobat, I used the File/Save As Other.../Reduce Size PDF… this reduced the PDF to only 230 Kb (about 40 times smaller!)
Not impressed at all.

benoitdo about Compress PDF, v1.5.0