Convert to WMF online

Free online converter for converting files to WMF.

How to convert files to WMF?

Upload your file

Click the 'Choose File' button or drag and drop your file into the upload area. Supported formats include SVG, SVGZ, PLT and more.

Select the output format

Make sure WMF is selected as the conversion format. Adjust additional settings if needed.

Start the conversion process

Click the 'Convert' button and wait a few seconds. All conversions are performed on our servers.

Download the result

Once the process is complete, click the 'Download' button and save the file in WMF format.

Why choose our WMF converter?

We ensure quality, convenience, and support for all formats.

High-quality to WMF conversion

We guarantee precise to WMF file conversion without any loss of quality.

Support for multiple formats

You can convert your to WMF files from over 200 different formats, including images, documents, and more.

Compatible with all devices

Convert to WMF files from any device – whether it's a computer, tablet, or smartphone.

User-friendly interface

Our service is designed to make to WMF conversion easy for everyone in just a few simple steps.

Full data security

All files are transmitted and stored using advanced encryption technologies.

High-speed processing

Thanks to cloud technology, we ensure fast processing even for large to WMF files.

Convert to WMF: supported formats

.WMF

WMF

Windows Metafile Format

Data type	Image
MIME type	image/wmf
Developer	Microsoft Corporation
Primary use cases	Legacy Windows clip art, office document graphics, Windows clipboard exchange, legacy prepress and DTP import

What is the WMF file format?

WMF (Windows Metafile) is a legacy vector graphics format native to Microsoft Windows that stores a sequence of GDI drawing commands. It supports both vector and raster content and remains widely encountered in older documents and office applications.

WMF file characteristics

Data type	Image
Structure type	Vector metafile (GDI command sequence)
Metadata	Minimal; APM header contains bounding box and units; no EXIF or XMP
Standard / Specification	MS-WMF: Windows Metafile Format (Microsoft Open Specification); RFC 7903
Typical file size	5–500 KB for typical clip art and diagrams
Year introduced	1990

Advantages

The WMF file format offers several advantages that make it suitable for common use cases.

Universally supported across Windows applications and Office;
Compact for simple vector graphics;
Scalable as a command sequence;
Widely supported by image converters and document processors

Limitations

The WMF file format has certain limitations that may affect its use in specific scenarios.

No transparency;
Limited to Windows GDI drawing primitives;
Device-dependent without placeable header;
Text rendering is character set ambiguous;
Cannot represent modern graphics effects such as gradients or filters

Compatibility

WMF vector files are supported by a wide range of design and graphics applications.

Browser support: No
Mobile support: No
Streaming support: No

Security considerations

WMF has a serious security history. The 2005–2006 MICE (Metafile Image Code Execution) vulnerability — which won the 2007 Pwnie Award — allowed arbitrary code execution via the SETABORTPROC escape record. WMF files from untrusted sources must be treated with extreme caution. Always use fully patched Windows systems and up-to-date rendering libraries when processing WMF files.

License

Proprietary (Microsoft); specification published under Open Specification Promise

WMF (Windows Metafile Format) is a binary vector graphics format introduced with Microsoft Windows 2.0 in 1990. Rather than storing a static image, a WMF file contains a series of Windows GDI (Graphics Device Interface) drawing commands — such as draw line, fill region, or render text — that are replayed to produce graphical output on the target device. This design made WMF highly dependent on the rendering device, as the output quality could vary between displays and printers. To address device independence, Aldus Corporation introduced the 'placeable' WMF variant, which adds a 22-byte APM (Aldus Placeable Metafile) header containing bounding box and scaling information; this variant is identified by the magic bytes D7 CD C6 9A at the file start. WMF files may contain both vector and raster content, including embedded bitmaps via META_DIBSTRETCHBLT and related records. The format was eventually superseded by EMF (Enhanced Metafile Format) introduced with Windows NT 3.1 in 1992, which added proper device independence and 32-bit GDI support. Despite its age and limitations, WMF remains ubiquitous in legacy document workflows, Microsoft Office clip art, and as a clipboard format on Windows. The format specification was published by Microsoft in 2006 under the Open Specification Promise. A gzip-compressed variant exists with the .wmz extension.