Article ID: 2002066 - View products that this article applies to.
After saving a document, spreadsheet, or presentation which contains an image, a loss of image quality such as blur may occur.
This issue occurs because PowerPoint, Excel, and Word perform a basic compression of images on save.
It is not possible to recover pictures that have already been compressed.
For future saves, compression can be disabled on a per-file basis using the following steps:
You can also modify the following registry setting to prevent basic compression from occurring by default.
Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
322756 How to back up and restore the registry in Windows
PowerPoint Help and How-to: Reduce the file size of a picture
(http://go.microsoft.com/fwlink/?LinkId=151500)for other considerations.