ImageGear .NET v25.2 - Updated
Developer Guide / File Formats and Compressions / File Formats / File Formats Reference / WPG
In This Topic
    WPG
    In This Topic
    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.