Our website provided a free download of ShrinkIt 2.0.19 for Mac. The actual developer of this free Mac application is Panic Inc. The application is included in System Tools.
From the developer:
ShrinkIt takes bloated Adobe-saved graphic PDFs, runs them through Apple’s PDF renderer, and saves them back out, making many of them smaller without any quality loss.
You may want to check out more Mac applications, such as Shrink-Fit X, which might be similar to ShrinkIt.