Convert Windows Metafile (.wmf) to Portable Network Graphics (.png) online for free. Fast, secure image conversion with no watermarks or registration.
Upload your .wmf file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
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WMF (Windows Metafile) is Microsoft's original vector format from Windows 3.0, recording GDI drawing commands for shapes, lines, text, and embedded bitmaps. WMF files are found in legacy clip art, old Office documents, and 1990s-era Windows applications. PNG (Portable Network Graphics) is the modern lossless raster format supporting full color, alpha transparency, and efficient compression.
Converting WMF to PNG rasterizes the legacy vector graphics into a high-quality, lossless raster image with full transparency support. This is the recommended conversion for most WMF files because PNG provides lossless quality, universal compatibility, transparency (which WMF content often requires), and efficient compression that produces reasonably small files from the flat-colored content typical of WMF graphics.
PNG is the ideal raster format for vector-originated content. Its lossless compression preserves the sharp edges and solid colors of WMF graphics without the blurring and blocking artifacts that JPEG introduces. PNG's alpha channel transparency enables WMF graphics to be placed on any background — web pages, documents, presentations — without the white rectangle artifacts that JPEG's lack of transparency causes.
Modern web development, document creation, and presentation design all expect PNG for this type of graphic content. Converting WMF to PNG makes legacy clip art and diagrams immediately usable in HTML/CSS, Google Slides, Keynote, Figma, Canva, and every modern design and productivity tool.
The WMF GDI records are interpreted and rendered onto a raster canvas at the specified resolution using ImageMagick or LibreOffice. The rendering engine processes each drawing command in sequence, building up the final image. Transparent areas (where no drawing commands fill the background) are preserved as alpha channel transparency in the PNG output. Compression uses DEFLATE with optimized filter selection for minimal file size. Output resolution is configurable — 96 DPI for web, 150 DPI for high-quality screen, 300 DPI for print.
PNG's lossless compression preserves every pixel of the rendered WMF output perfectly. Edges remain crisp, solid colors are exact, and text is sharp. The rendering resolution determines the level of detail captured from the vector source — since WMF is a vector format, rendering at higher resolutions reveals more detail (up to the precision limits of WMF's 16-bit coordinate space). For the simple clip art and diagrams that most WMF files contain, PNG at 150-300 DPI produces excellent results.
| Device | WMF | PNG |
|---|---|---|
| Windows PC | Partial | Native |
| macOS | Partial | Native |
| iPhone/iPad | Partial | Native |
| Android | Partial | Native |
| Linux | Partial | Native |
| Web Browser | No |
WMF to PNG is the recommended conversion for legacy Windows vector graphics. The output provides lossless quality, transparency support, universal compatibility, and efficient compression — all the features needed to integrate legacy WMF content into modern workflows.
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| Egenskap | WMF | PNG |
|---|---|---|
| Fullt navn | Windows Metafile | Portable Network Graphics |
| Filendelse | .wmf | .png |
| Best egnet for | Vector graphics | Lossless quality |