PNG vs RW2
Um comparativo detalhado de PNG Image e Panasonic RAW RW2 — tamanho de arquivo, qualidade, compatibilidade e qual escolher de acordo com seu fluxo de trabalho.
PNG 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.
Sobre os arquivos PNGPanasonic RAW RW2
Raster & Vector ImagesRW2 is Panasonic Lumix RAW format.
Sobre os arquivos RW2Comparativo de vantagens
PNG Vantagens
- 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.
RW2 Vantagens
- Compact thanks to Micro Four Thirds sensor size.
- Hybrid photo/video workflow friendly on GH bodies.
- Supports 14-bit depth on Lumix S.
- Stable format since 2008.
Limitações
PNG Limitações
- 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.
RW2 Limitações
- Proprietary — no public spec.
- Market share is niche; fewer tutorials.
- MFT sensor means less dynamic range than full-frame.
- Video-focused bodies mean some RW2 files are actually video-extracted frames with different artifacts.
Especificações técnicas
| Especificação | PNG | RW2 |
|---|---|---|
| MIME type | image/png | image/x-panasonic-rw2 |
| 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 | — |
| Extension | — | .rw2 |
| Container | — | TIFF/EP variant with Panasonic MakerNote |
| Bit depth | — | 12 or 14-bit |
| Related | — | .raw (older Panasonic bodies) |
Tamanhos típicos de arquivo
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
RW2
- 20 MP RW2 (G9, GH5) 20-25 MB
- 47 MP RW2 (Lumix S1R) 50-75 MB
Pronto para converter?
Converta entre PNG e RW2 online, grátis e sem instalar nada. Upload criptografado, exclusão automática em 60 minutos.
Perguntas frequentes
PNG (Portable Network Graphics) is a lossless raster image format created in 1996 as a patent-free alternative to GIF. It supports transparency, making it ideal for logos, icons, and web graphics.
PNG (Portable Network Graphics) is a sem perdas raster image formato created in 1996 como um patent-free alternative to GIF. It suporta transparência, making it ideal para logos, icons, e web graphics.
PNG files open natively in all modern operating systems, web browsers, and image editors including Photoshop, GIMP, Paint.NET, and Canva.
PNG arquivos abrir natively in all moderno operating systems, web browsers, e image editors including Photoshop, GIMP, Paint.NET, e Canva.
WebP offers 26% smaller file sizes than PNG with equivalent quality. Use WebP for web delivery when browser support is sufficient. Use PNG when maximum compatibility or professional editing workflows are needed.
WebP oferece 26% smaller tamanho do arquivos than PNG com equivalent quality. usar WebP para web delivery when browser support is sufficient. usar PNG when máximo compatibilidade ou profissional editando workflows are needed.