BMP vs PPTX
Ein detaillierter Vergleich von BMP Image und PowerPoint Presentation — 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-DateienPowerPoint Presentation
PresentationsPPTX is the modern Microsoft PowerPoint format based on Open XML. It is the standard for business and educational presentations, supporting slides, animations, transitions, and embedded media.
Über PPTX-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.
PPTX Vorteile
- ~75% smaller than the legacy binary .ppt thanks to ZIP compression.
- Human-readable XML inside — easy to script, patch, or diff.
- Cross-compatible with Keynote, Google Slides, LibreOffice Impress (with minor drift).
- Preserves master slides, themes, animations, notes, and embedded media.
- ISO/IEC 29500 standardized — vendor-independent on paper.
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.
PPTX Einschränkungen
- Animations and transitions often render differently outside Microsoft PowerPoint.
- Embedded fonts and media balloon file sizes rapidly.
- Complex layouts drift subtly when round-tripped through non-Microsoft editors.
- Older .pptm macro-enabled variants are a malware vector via VBA.
Technische Spezifikationen
| Spezifikation | BMP | PPTX |
|---|---|---|
| MIME type | image/bmp | application/vnd.openxmlformats-officedocument.presentationml.presentation |
| Extensions | .bmp, .dib | — |
| Compression | None (typical); RLE 4/8 bit (rare) | — |
| Color depths | 1, 4, 8, 16, 24, 32 bits per pixel | — |
| Byte order | Little-endian | — |
| Container | — | ZIP (Office Open XML) |
| Standard | — | ISO/IEC 29500, ECMA-376 |
| Released in | — | Microsoft Office 2007 |
| Legacy predecessor | — | .ppt (binary OLE, 1987-2007) |
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
PPTX
- Simple 10-slide deck (text only) 50-200 KB
- Typical corporate deck with images (30 slides) 2-20 MB
- Deck with embedded 4K videos 100-500 MB
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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.