ImageGear .NET v25.1 - Updated
WPG
User Guide > File Formats and Compressions > File Formats > File Formats Reference > WPG
Full Name WPG (WordPerfect Graphics Metafile)
Format ID ImGearFormats.WPG
File Extension(s) *.wpg
Data Type Raster Image
Data Encoding Binary
Multi-Page Support No
Alpha Channel Support No
Metadata Update Support No
ImageGear Platforms Support WIN32, WIN64, Unix, Unix64, .NET, .NET64, MAC

ImageGear Supported Versions

ImageGear Supported Features

ImageGear Read Support

ImageGear Write Support

No

ImageGear Filter Control Parameters

None

Comments

Metafiles contain vector (or geometric) specifications and bitmap pixel data. Vector data is ignored; only the bitmap data is read and/or written.

This format was created specifically for use with WordPerfect software products. WPG files for WordPerfect versions 5.1 and up can store both bitmap and vector image data in the same file.

The WordPerfect Graphics Metafile contains a short header or "prefix" (as WordPerfect Corporation referred to it). The header is followed by a record area, that is a sequence of objects and their attributes. The first record is called the "Start WPG Data" record and contains information on the size of the images and the version number of the .WPG file. The next record is usually a color map, unless the image is black and white. The next record is a bitmap record. If there are multiple images, there is a bitmap record for each image. The last record in a .WPG file contains a NULL body to signify the end of the file. These files may also contain Encapsulated PostScript (EPS) data.

References Used

Murray, James D. "Graphic Image Format FAQ 3-4". James D. Murray, 1994-1996.

Murray, James D. and William vanRyper. Encyclopedia of Graphics File Formats. Sebastopol, CA: O'Reilly & Associates, Inc., 1994.