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Image MIME Reference
GIF

Graphics Interchange Format

image/gif
VS

PaintShop Pro Image

image/x-paintshoppro
PaintShop-Pro-PSP

A complete technical comparison of Graphics Interchange Format and PaintShop Pro Image — covering compression, feature support, browser compatibility, magic bytes, and when to choose each format.

GIF wins on browser support

Feature Support

Feature GIF PaintShop-Pro-PSP
Transparency (Alpha) Yes Yes
Animation Support Yes ✕ No
Progressive Loading Yes ✕ No
HDR Support ✕ No Yes
EXIF Metadata ✕ No Yes
ICC Color Profile Yes Yes
Graphics Interchange Format
image/gif
Extension
.gif
Container GIF
Compression Lossless (LZW)
Algorithm
LZW (Lempel-Ziv-Welch)
Color Depth 1-bit, 4-bit, 8-bit (Indexed)
Developed by CompuServe
Released 1987
Magic Bytes
47 49 46 38 39 61
Full GIF reference →
PaintShop Pro Image
image/x-paintshoppro
Extension
.psp.pspimage.tub.pat
Container PSP Chunk-based Format
Compression Uncompressed / RLE (Run-Length Encoding) / LZ77
Algorithm
RLELZ77
Color Depth 8-bit (Indexed), 16-bit (Grayscale), 24-bit (RGB), 32-bit (RGBA), 48-bit (High Color)
Developed by Jasc Software / Corel Corporation (Alludo)
Released 1990
Magic Bytes
7E 42 4B 00
Full PaintShop-Pro-PSP reference →

Browser Support Comparison

Browser GIF PaintShop-Pro-PSP
Chrome Chrome
✓ All
 ✕
Firefox Firefox
✓ All
 ✕
Safari Safari
✓ All
 ✕
Edge Edge
✓ All
 ✕
IE IE (Legacy)
✓
 ✕
GIF

GIF Strengths

  • Universal support across all web browsers, operating systems, and messaging apps
  • Supports basic frame-by-frame animation out of the box
  • Lossless compression is highly effective for simple, flat-color graphics like logos or pixel art
Limitations
  • Limited to 256 colors per frame, resulting in poor quality for complex gradients and photographs
  • Animations produce massive file sizes compared to modern formats like MP4, WebP, or AVIF
  • 1-bit transparency limits edge blending on non-uniform backgrounds
PaintShop-Pro-PSP

PaintShop-Pro-PSP Strengths

  • Provides robust, non-destructive editing capabilities with full support for vector layers, adjustment layers, and layer blend modes
  • Historically offered a highly capable and affordable alternative to Adobe Photoshop's PSD format for Windows users
  • Features proprietary support for 'Picture Tubes' (.tub), a unique brush technology that paints sequential or random raster objects along a path
Limitations
  • Deeply proprietary format tied exclusively to the Corel/Alludo ecosystem
  • Third-party software support (like GIMP or ImageMagick) is often limited to parsing older .psp files, frequently failing to render complex layers in modern .pspimage files
  • No support in modern web browsers; must be exported to a flattened web format (JPEG/PNG) for online viewing

When to choose which format

GIF
Use GIF when…
  • Web Animations
  • Memes
  • Simple Graphics
  • Logos with flat colors
PaintShop-Pro-PSP
Use PaintShop-Pro-PSP when…
  • PaintShop Pro Multi-layer Project Archival
  • Digital Art and Photo Retouching
  • Picture Tubes (.tub) and Custom Patterns (.pat)

More comparisons

GIF vs ACES → PaintShop-Pro-PSP vs ACES → GIF vs APNG → PaintShop-Pro-PSP vs APNG → GIF vs AVCI → PaintShop-Pro-PSP vs AVCI → GIF vs AVCS → PaintShop-Pro-PSP vs AVCS → GIF vs AVIF → PaintShop-Pro-PSP vs AVIF → All comparisons →
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