Raster image file formats define how pixels store color and transparency, shaping how your graphics look on screen and in print.
Choosing the right format balances visual quality, file size, and compatibility across web, print, and editing workflows.
| Format | Compression | Transparency | Best Use |
|---|---|---|---|
| JPEG | Lossy | No | Photographs and realistic images |
| PNG-24 | Lossless | Full alpha | Web graphics with sharp edges and transparency |
| WebP | Lossy/Lossless | Full alpha | Web performance with smaller sizes |
| TIFF | Lossless or high-quality lossy | Yes | Print production and archival |
| BMP | None | Basic | Simple icons or internal workflows |
| GIF | Lossy, 256 colors | Binary | Simple animations and low-color branding |
| SVG | N/A (vector) | Yes | Logos and UI icons that scale |
| EPS | Variable | Yes | Vector-based print and legacy workflows |
| PSD | Lossless (layers) | Yes | Editable design files and complex compositions |
| ICO | Limited | Binary or alpha | Favicons and cursor files |
| HEIF/HEIC | Lossy/Lossless, high compression | Full alpha | Mobile photography and efficient galleries |
| AVIF | Lossy/Lossless, very high compression | Full alpha | Web delivery with extreme size savings |
Optimize Web Graphics with JPEG and PNG
JPEG for Photographic Richness
JPEG is ideal for photographs and realistic images where smooth gradients matter.
Its lossy compression reduces file size at the cost of repeated editing, which can introduce artifacts.
PNG for Clarity and Transparency
PNG-24 preserves sharp edges, text, and logos while supporting full alpha transparency.
Use PNG when quality and precise transparency are more important than file size.
Modern Formats for Speed and Flexibility
WebP and AVIF for High Performance
WebP and AVIF deliver superior compression for both photos and graphics on the web.
AVIF offers the best size savings, although browser support is still growing compared to WebP.
Choose Based on Context
For progressive web apps, lean on WebP or AVIF to improve load times without visible quality loss.
Fallback to JPEG and PNG for environments where newer formats are not yet reliably supported.
Print Production and Archival Formats
TIFF for High-Fidelity Output
TIFF supports lossless compression and deep color, making it a staple in professional print workflows.
Use TIFF for final deliverables when maximum detail and long-term archiving are required.
EPS and PSD for Design Flexibility
EPS preserves vector data and is useful for print shops that need scalable logos and illustrations.
PSD retains layers and editing history, which is essential for complex image adjustments and collaboration.
Simple Graphics and Legacy Compatibility
GIF, BMP, and ICO for Specialized Roles
GIF suits low-color animations and simple UI elements, though its 256-color limit restricts photographic use.
BMP is uncompressed and best for internal tools or small icon sets where size is not a concern.
ICO files are purpose-built for favicons and cursor assets, ensuring compatibility across browsers and systems.
Choose the Right Raster Format for Every Project
- Match format to destination, such as WebP for web and TIFF for print
- Prefer lossless compression when editing repeatedly or preserving detail
- Use transparency options wisely, favoring PNG or WebP for alpha channels
- Test visual quality and file size with real content before finalizing
- Maintain editable source files and export optimized versions for delivery
FAQ
Reader questions
Which format should I use for a company logo on the web?
Use SVG for logos that need to scale cleanly, and provide a PNG fallback for older browsers.
Can I use JPEG images on my professional photography portfolio?
JPEG is suitable for portfolio photography when file size is a concern, but avoid repeated saves to limit quality loss.
Is WebP safe to use in all modern browsers right now?
WebP is widely supported in current browsers, but include PNG or JPEG fallbacks for edge cases and legacy systems.
Should I save layered design files as JPEG or PSD?
Always save layered work as PSD or a native format to preserve editability, and export JPEGs only for final delivery.