WD2000: Poor Compression of Word Files That Contain Graphics

ID: Q220555

The information in this article applies to:

SYMPTOMS

When you use file compression utilities to reduce the storage size of Word documents that contain a large percentage of graphics, the compression ratio may be lower than expected.


CAUSE

Microsoft Word is designed to automatically compress the pictures or graphics inserted into documents. Word natively stores JPEG images and converts all raster formats to Portable Network Graphics (PNG). PNG is a compressed format.

Applying additional compression to well-compressed images does not yield a significant reduction in the amount of storage space. Only the non-PNG image information, such as text and binary data, can be reduced by compression algorithms.

Additional query words: drw cgm pcx pcd cdr dxf emf wmf jpg png pict gif jpeg tif tiff eps wpg bmp dib rle tga pct 


Keywords          : kbdta wd2000 
Version           : WINDOWS:2000
Platform          : WINDOWS 
Issue type        : kbprb

Last Reviewed: May 17, 1999