Enhanced Metafile

From Just Solve the File Format Problem
Jump to: navigation, search
File Format
Name Enhanced Metafile
Ontology
Extension(s) .emf, .emz
MIME Type(s) image/emf
PRONOM x-fmt/153, fmt/344, fmt/345
Released 1993

Enhanced Metafile (EMF) is a vector graphics format native to 32-bit versions of Microsoft Windows. It is the successor to Windows Metafile (WMF).

There is an extension of the format, named Enhanced Metafile Format Plus Extensions (EMF+).

The .emz filename extension is reportedly used for gzip-compressed EMF files.

Contents

Format details

Though EMF is very similar in concept to WMF, the format itself is quite different, and completely incompatible. It has a different record structure, and different command opcodes.

Identification

EMF files begin with bytes 01 00 00 00 (representing record type EMR_HEADER), and have ASCII " EMF" (with the leading space) at file offset 40.

EMF+ files are EMF files with the following characteristics. Let n be the 32-bit integer at offset 4. At offset n is the 32-bit integer 0x00000046 (representing record type EMR_COMMENT). At offset n+12 is the ASCII string "EMF+".

Specifications

Metaformat files

Software

Links

Personal tools
Namespaces

Variants
Actions
Navigation
Toolbox