| Format | Extension | Key Feature | Limitation in Photoshop | | :--- | :--- | :--- | :--- | | | .pdf | Embeds PSD data + vector text | Rasterizes vector shapes unless "Preserve Editability" is checked. | | Large Document Format | .psb | Handles huge dimensions | Incompatible with older software versions. | | PNG | .png | Lossless compression, transparency | No layer or spot color support. | 3.3 Output & Distribution Formats (Final Delivery) These formats flatten the image (merge layers) to reduce file size for web, print, or mobile.
JPEG compression degrades quality each time a file is saved. It should never be used as a working format. 4. Comparative Analysis of Key Formats The following table contrasts the three most commonly debated formats for high-quality image storage. file formats in photoshop
| Format | Extension | Max Bit Depth | Layer Support | Compression | Primary Use Case | | :--- | :--- | :--- | :--- | :--- | :--- | | | .psd | 16-bit | Yes | RLE (limited) | Standard multi-layer editing; industry standard. | | Photoshop Big | .psb | 32-bit | Yes | RLE | Documents exceeding 2GB or 30,000 pixels in dimension. | | TIFF | .tif, .tiff | 32-bit | Yes | LZW, ZIP, JPEG | Archival master files; cross-platform compatibility (Mac/Windows). | | Format | Extension | Key Feature |
| Format | Extension | Compression Type | Transparency | Color Space | Best For | | :--- | :--- | :--- | :--- | :--- | :--- | | | .jpg, .jpeg | Lossy | No | sRGB, CMYK | Photographs on web; email attachments. | | PNG-24 | .png | Lossless | Yes (8-bit) | sRGB | Logos, UI elements, screenshots. | | GIF | .gif | Lossless (256 colors) | Yes (1-bit) | Indexed | Simple animations, low-color graphics. | | BMP | .bmp | None or RLE | No | RGB | Legacy Windows applications. | JPEG | Archival master files