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Why renaming .wmf to .emf could work? RRS feed

  • Question

  • Hi,

    I frequently use Mathtype with Word. I found that formulae I pasted into Word are actually stored as .wmf formats after changing .docx to .zip and unzip the file.

    However, if I rename any of the .wmf files to .emf, the content is equally viewable such as in MS paint, and the .emf file can be pasted directly into MS Word as a vector graphic.

    From http://en.wikipedia.org/wiki/Windows_Metafile .emf is 32-bit enhanced version of the 16-bit .wmf file. Is this the reason why the file can simply be renamed?

    Bob

    Tuesday, February 21, 2012 4:19 AM

Answers

  • Hi,

    Please see following description, hope this helps.
    Link: http://support.microsoft.com/kb/320314


    WMF: Windows Metafile
    The Windows Metafile is a 16-bit metafile format that can contain both vector information and bitmap information. It is a Windows standard format.

    EMF: Enhanced Metafile
    The Enhanced Metafile format is a 32-bit format that can contain both vector information and bitmap information. This format is an improvement over the Windows Metafile Format and contains extended features, such as the following:

    • Built-in scaling information.
    • Built-in descriptions that are saved with the file.
    • Improvements in color palettes and device independence.

    The EMF format is an extensible format, which means that a programmer can modify the original specification to add functionality or to meet specific needs. This modification can lead to incompatibilities between different types of EMF pictures.

    Advantages:
    Extensible file format.
    Improved features compared with WMF.

                                                                                                                                                                                                         Quote from Microsoft KB.

    You may also read this article: "[MS-WMF]: Windows Metafile Format"
    http://technet.microsoft.com/en-us/library/cc250370(v=PROT.10).aspx

    Best regards.


    William Zhou

    TechNet Community Support

    • Marked as answer by Bob Sun Thursday, February 23, 2012 3:52 PM
    Thursday, February 23, 2012 7:07 AM