PBM vs PNG
Ein detaillierter Vergleich von PBM Bitmap Image und PNG Image — Dateigröße, Qualität, Kompatibilität und welches je nach Workflow zu wählen ist.
PBM Bitmap Image
Raster & Vector ImagesPBM (Portable Bitmap) stores monochrome images in a minimal format.
Über PBM-DateienPNG Image
Raster & Vector ImagesPNG is a lossless image format that supports transparency. It is ideal for graphics, logos, screenshots, and any image where preserving exact pixel data is important.
Über PNG-DateienVorteilsvergleich
PBM Vorteile
- Extreme simplicity — a 20-line parser handles every PBM.
- Ideal as pipeline intermediate format.
- Plain ASCII variant is human-readable and diff-able.
- 37+ years of unchanged stability.
PNG Vorteile
- Lossless compression — every save preserves the original pixels perfectly.
- Full 8-bit alpha channel for smooth transparency.
- Excellent for text, UI screenshots, logos, and line art.
- Royalty-free and an ISO standard (ISO/IEC 15948).
- Supports 16-bit color depth for high-fidelity work.
Einschränkungen
PBM Einschränkungen
- No compression — files are huge compared to PNG or JPEG.
- No color profile, no metadata, no transparency.
- Not a delivery format — strictly for pipelines.
- ASCII variant is 8× larger than binary for the same image.
PNG Einschränkungen
- Much larger than JPEG for photographs (no perceptual compression).
- No native animation in most software (APNG support is inconsistent).
- No CMYK support — web and screen only, not print.
- Metadata capabilities are less rich than JPEG's EXIF.
Technische Spezifikationen
| Spezifikation | PBM | PNG |
|---|---|---|
| MIME types | image/x-portable-bitmap (PBM), image/x-portable-graymap (PGM), image/x-portable-pixmap (PPM) | — |
| Extensions | .pbm, .pgm, .ppm, .pnm | — |
| Variants | P1 (ASCII bitmap), P4 (binary bitmap), P2/P5 (graymap), P3/P6 (pixmap) | — |
| Toolkit | Netpbm (since 1988) | — |
| Creator | Jef Poskanzer | — |
| MIME type | — | image/png |
| Compression | — | Lossless — DEFLATE (zlib) |
| Color depth | — | 1, 2, 4, 8 or 16 bits per channel |
| Max dimensions | — | 2^31 − 1 pixels per side (2.1 billion) |
| Transparency | — | Full 8-bit alpha channel |
| Standard | — | ISO/IEC 15948:2004 |
Typische Dateigrößen
PBM
- 512×512 bitmap (binary P4) 33 KB
- 1920×1080 grayscale (binary P5) ~2 MB
- 1920×1080 RGB (binary P6) ~6 MB
PNG
- Icon or small logo 2–20 KB
- UI screenshot (1920×1080) 200–800 KB
- High-res photo (12 MP) 10–30 MB
- Print-ready illustration 5–50 MB
Bereit zum Umwandeln?
Wandle zwischen PBM und PNG online um, kostenlos und ohne Installation. Verschlüsselter Upload, automatische Löschung in 60 Minuten.
Häufig gestellte Fragen
PBM (PBM Bitmap Image) is an image format used to store raster graphics — a two-dimensional grid of pixels describing a picture. It is part of the raster & vector images family and designed around a specific trade-off between file size, visual fidelity, and feature support (transparency, colour depth, compression type). Photographers, web designers, and content creators choose PBM when its particular strengths match the publishing target.
PBM (PBM Bitmap Image) is an image formato used to store raster graphics — a two-dimensional grid of pixels describing a picture. It is part of the raster & vector images family e designed around a specific trade-off between tamanho do arquivo, visual fidelity, e feature support (transparency, colour depth, compressão type). Photographers, web designers, e content creators choose PBM when its particular strengths match the publishing target.
Most desktop photo viewers (Windows Photos, macOS Preview, GIMP, Photoshop, Affinity Photo) open PBM natively. On mobile, iOS Photos and Google Photos display PBM in the gallery when supported by the OS. If the format is rare or new, convert to JPG or PNG first — both are universally readable — using our PBM to JPG or PBM to PNG converter.
Most desktop photo viewers (Windows Photos, macOS Preview, GIMP, Photoshop, Affinity Photo) abrir PBM natively. On mobile, iOS Photos e Google Photos display PBM no gallery when suportado por the OS. If the formato is rare ou new, converter to JPG ou PNG first — both are universally readable — usando our PBM to JPG ou PBM to PNG converter.
Upload the PBM to KaijuConverter and pick a target format (JPG, PNG, WebP, HEIC, TIFF, BMP, SVG, PDF). The conversion runs in the browser via ImageMagick and returns a download in seconds. No account or installation required; both input and output delete automatically within two hours.
It depends on the task. JPG is the smallest file size for photographs; PNG is lossless with transparency; PBM has its own niche that may favour colour depth, animation, or encoding efficiency over one or both of those. For the final web publish, test all three and measure file size plus visible quality on real content.