PSD vs XPM
A detailed comparison of Adobe Photoshop Document and X PixMap — 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 filesX PixMap
Raster & Vector ImagesXPM (X PixMap) is a color image format for the X Window System that stores pixel data as ASCII text with a color palette. Unlike XBM, it supports full color and transparency through a simple text-based representation.
About XPM 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.
XPM Strengths
- Valid C source — directly embeddable in code.
- Text-editable in any editor.
- Transparency via "None" color value.
- Stable since 1989 with no breaking changes.
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.
XPM Limitations
- Enormous file sizes vs compressed formats.
- Only useful within X11 / legacy Unix GUI ecosystem.
- Limited color palette in classic form (256 colors max practical).
- Superseded by PNG and SVG for modern UI.
Technical Specifications
| Specification | PSD | XPM |
|---|---|---|
| MIME type | image/vnd.adobe.photoshop | image/x-xpixmap |
| 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 | — | .xpm |
| Encoding | — | ASCII text (valid C source) |
| Native environment | — | X Window System (X11) |
| Predecessor | — | .xbm (X Bitmap, 1-bit) |
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
XPM
- Small icon (32×32, 16 colors) 2-5 KB
- Toolbar button set 10-50 KB
Ready to convert?
Convert between PSD and XPM online, free, and without installing anything. Encrypted upload, automatic deletion after 60 minutes.
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.
PSD (Photoshop Document) is the native formatoo de arquivo para Adobe Photoshop. It preserves layers, masks, adjustment layers, paths, e smart objects, making it the industry padrão para profissional image editando e design workflows.
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.
Os arquivos PSD abrem no Adobe Photoshop (edição completa), GIMP (grátis, suporte parcial de camadas), Photopea (editor online gratuito) e Affinity Photo. Para apenas visualização, XnView e IrfanView funcionam bem. Para compartilhar, converta para JPG ou PNG com o KaijuConverter.
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.
Use PSD durante active Photoshop editando to preserve all Photoshop-specific features like smart objects e adjustment layers. usar TIFF para compartilhando layered arquivos com non-Adobe software ou para archival em um more universal formato.