A Software for Microsoft Office file compression. PowerShrink enables you to reduce the size of Microsoft PowerPoint files (.ppt, .pps) by compressing them without noticeable quality loss. Most files we tested were reduced by 50% or more and according to the developer it can achieve results up to 90% depending on size and content of the presentation.
PowerShrink offers different shrink modes based on the intended usage and you can also customize the compression by setting JPG quality, resolution and more. PowerShrink can process single or multiple files, offers optional command line options, shell integration (right-click menu) and can also be used directly from within PowerPoint. The program does not modify your original PowerPoint files.

Key benefits of PowerShrink:
1. PowerShrink is the first software supporting all Office 2007 file formats including PowerPoint 2007, Word 2007 and Excel 2007
2. Works with .docx .xls .xlsx .ppt .pptx .pptm .potx
3. PowerShrink keeps the original Microsoft Office functionality, layout and format
4. With compression rates up to 98%, average compression rates of 62% PowerShrink allows you to reduce the total cost of ownership (TCO)
5. Many customizable options. A choice from compression rates allow you to select the perfect balance between quality and compression ration PowerShrink can extract all images from your office files with just one click
6. Fast ROI - The low cost for PowerShrink allows the return on investment (ROI) to be achieved in very short time by:
7. Enhancing worker productivity
8. Reducing load on LAN and WAN
9. Shorter backup time and less space required on the backup media
10. Acceleration of e-mail, internet and intranet file transfers
11. No more zipping and unzipping (e.g. Winzip) is necessary for using a - PowerShrink optimized Office File

The license of this software is Free Trial Software, the price is $39.95, you can free download and get a free trial.