PNG vs PS
Ein detaillierter Vergleich von PNG Image und PostScript — Dateigröße, Qualität, Kompatibilität und welches je nach Workflow zu wählen ist.
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.
Über PNG-DateienPostScript
Documents & TextPostScript is a page description language used in desktop publishing and professional printing.
Über PS-DateienVorteilsvergleich
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.
PS Vorteile
- Device-independent — same file prints identically on any PostScript printer.
- Vector-based at heart; rasterization happens at the printer's DPI.
- Programmable — dynamic pages, variable data, and procedural art all possible.
- Legacy standard in academic and print pipelines.
Einschränkungen
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.
PS Einschränkungen
- Turing-complete = security hole; malicious PS files can hang printers or exploit vulnerabilities.
- Not a display format; browsers cannot render PostScript without conversion.
- Mostly superseded by PDF (which is PostScript's sandboxed, declarative descendant).
- File sizes can be enormous when embedding high-res images or fonts.
- Modern Illustrator (2020+) deprecated PostScript import for security.
Technische Spezifikationen
| Spezifikation | PNG | PS |
|---|---|---|
| MIME type | image/png | application/postscript |
| 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 | Adobe PostScript Language Reference Manual (Red Book) |
| Extensions | — | .ps, .eps (encapsulated), .prn (print-ready) |
| Language | — | PostScript Level 2 / 3 (Turing-complete, stack-based) |
| Successor | — | PDF (declarative subset, 1993) |
Typische Dateigrößen
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
PS
- Simple academic paper 100 KB - 2 MB
- Long paper with figures 5-30 MB
- Multi-chapter book source 50-200 MB
Bereit zum Umwandeln?
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Häufig gestellte Fragen
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.