BMP vs EMF
Ein detaillierter Vergleich von BMP Image und Enhanced Metafile — Dateigröße, Qualität, Kompatibilität und welches je nach Workflow zu wählen ist.
BMP Image
Raster & Vector ImagesBMP is an uncompressed raster image format native to Windows. Files are large but preserve exact pixel data with no compression artifacts. Rarely used on the web due to file size.
Über BMP-DateienEnhanced Metafile
Raster & Vector ImagesEMF (Enhanced Metafile) is a Windows vector graphics format for print and display.
Über EMF-DateienVorteilsvergleich
BMP Vorteile
- Dead-simple format — trivially easy to read and write.
- Lossless and uncompressed — perfect bit-exact pixel storage.
- Universally supported in Windows applications since 1985.
- Supports 1, 4, 8, 16, 24, and 32-bit color depths.
EMF Vorteile
- 32-bit coordinates — effectively unlimited canvas.
- Rich vector primitive set + EMF+ gradients and alpha.
- Windows clipboard-native — round-trips perfectly between Office apps.
- Documented spec ([MS-EMF], [MS-EMFPLUS]).
Einschränkungen
BMP Einschränkungen
- Enormous file sizes — no meaningful compression in typical use.
- Not a web format — browsers support it but nobody serves BMPs over HTTP.
- No metadata support (no EXIF, no ICC profile in practice).
- Multiple header versions mean "a BMP" is ambiguous — parsers must handle several variants.
EMF Einschränkungen
- Windows-only ecosystem.
- Cross-platform tools produce approximate renderings.
- Not a web format — browsers do not display EMF.
- Superseded by SVG for most modern vector exchange.
Technische Spezifikationen
| Spezifikation | BMP | EMF |
|---|---|---|
| MIME type | image/bmp | image/emf |
| Extensions | .bmp, .dib | .emf, .emfx (EMF+) |
| Compression | None (typical); RLE 4/8 bit (rare) | — |
| Color depths | 1, 4, 8, 16, 24, 32 bits per pixel | — |
| Byte order | Little-endian | — |
| Coordinate precision | — | 32-bit signed integer |
| Related specs | — | [MS-EMF], [MS-EMFPLUS] |
| Predecessor | — | .wmf (16-bit, 1990) |
Typische Dateigrößen
BMP
- Small icon (32×32) 4 KB
- Screenshot (1920×1080) ~6 MB
- 4K image (3840×2160) ~25 MB
- Scanned A4 at 300 dpi ~25 MB
EMF
- Simple Office chart 5-50 KB
- Detailed Visio diagram 50 KB - 1 MB
Bereit zum Umwandeln?
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Häufig gestellte Fragen
BMP (Bitmap) is a raster image format developed by Microsoft for Windows. It stores images with no compression by default, resulting in large file sizes but pixel-perfect quality. It has been part of Windows since version 1.0.
BMP (Bitmap) is a raster image formato developed by Microsoft para Windows. It stores images com no compressão by default, resulting in large tamanho do arquivos mas pixel-perfect quality. It has been part of Windows since version 1.0.
BMP files open in Windows Paint, Photos, macOS Preview, GIMP, Photoshop, and virtually any image viewer. All Windows applications support BMP natively.
BMP arquivos abrir in Windows Paint, Photos, macOS Preview, GIMP, Photoshop, e virtually any image viewer. All Windows aplicativos support BMP natively.
PNG is better than BMP in almost every scenario since it provides lossless compression (smaller files), transparency support, and wider cross-platform use. BMP is mainly relevant for legacy Windows applications.
PNG is melhor que BMP in almost every scenario since it fornece sem perdas compressão (smaller files), transparência support, e wider cross-platform use. BMP is mainly relevant para legacy Windows aplicativos.