PSD vs WBMP
A detailed comparison of Adobe Photoshop Document and Wireless Bitmap — file size, quality, compatibility, and which format to choose for your workflow.
Adobe Photoshop Document
Raster & Vector ImagesPSD is the native file format for Adobe Photoshop, storing layered image data, masks, color spaces, and editing metadata. Converting PSD flattens layers into a single composite image.
About PSD filesWireless Bitmap
Raster & Vector ImagesWBMP (Wireless Bitmap) is a monochrome image format designed for early WAP-enabled mobile devices. It stores 1-bit black-and-white images with minimal overhead, optimized for the bandwidth constraints of early mobile networks.
About WBMP filesStrengths Comparison
PSD Strengths
- Preserves every Photoshop feature: layers, masks, adjustments, smart objects, text, effects, styles.
- Backward-compatible — files from 1990 still open in modern Photoshop.
- Industry-standard handoff format between designers, agencies, and prepress.
- Supports 32-bit HDR, CMYK, Lab, Duotone, and spot colors for professional print work.
- Rich metadata, color profiles, and printing instructions survive round-trips.
WBMP Strengths
- Tiny file size.
- Pre-smartphone mobile standard.
- Trivial to encode.
Limitations
PSD Limitations
- Proprietary — full fidelity only in Adobe tools; other apps approximate.
- File sizes are enormous (hundreds of MB is common for complex documents).
- Not a web format — browsers cannot display PSD natively.
- Binary structure is complex and version-dependent; parsers often lag the latest Photoshop version.
- Hard 2 GB / 30 000 px limit forces professionals to switch to .psb for large artwork.
WBMP Limitations
- Monochrome only.
- WAP era is dead.
- Zero modern use.
Technical Specifications
| Specification | PSD | WBMP |
|---|---|---|
| MIME type | image/vnd.adobe.photoshop | image/vnd.wap.wbmp |
| Max dimensions | 30 000 × 30 000 px (PSD); 300 000 × 300 000 (PSB) | — |
| Max file size | 2 GB (PSD); 4 EB (PSB) | — |
| Color modes | Bitmap, Grayscale, Duotone, Indexed, RGB, CMYK, Lab, Multichannel | — |
| Bit depths | 1, 8, 16, 32 bits per channel | — |
| Extension | — | .wbmp |
| Bit depth | — | 1-bit |
| Origin | — | WAP Forum (1999) |
Typical File Sizes
PSD
- Simple 2-layer logo 500 KB - 3 MB
- Website mockup with 20 layers 20-80 MB
- Magazine spread with hi-res photos 150-500 MB
- Matte painting / CGI composite 1-4 GB
WBMP
- Typical WBMP icon 50-200 bytes
Ready to convert?
Convert between PSD and WBMP online, free, and without installing anything. Encrypted upload, automatic deletion after 2 hours.
Frequently Asked Questions
PSD (Photoshop Document) is the native file format for Adobe Photoshop. It preserves layers, masks, adjustment layers, paths, and smart objects, making it the industry standard for professional image editing and design workflows.
WBMP (Wireless Bitmap) 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 WBMP when its particular strengths match the publishing target.
PSD files open in Adobe Photoshop (full editing), GIMP (free, partial layer support), Photopea (free online editor), and Affinity Photo. For viewing only, XnView and IrfanView work well.
Most desktop photo viewers (Windows Photos, macOS Preview, GIMP, Photoshop, Affinity Photo) open WBMP natively. On mobile, iOS Photos and Google Photos display WBMP 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 WBMP to JPG or WBMP to PNG converter.
Use PSD during active Photoshop editing to preserve all Photoshop-specific features like smart objects and adjustment layers. Use TIFF for sharing layered files with non-Adobe software or for archival in a more universal format.
Upload the WBMP 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.