PSB (Photoshop Big) is Photoshop's large-document format, identical to PSD but supporting images beyond 30,000 pixels and 2GB for huge artwork.
PSB opens in Photoshop and Affinity Photo; convert to TIFF/PNG to share with other tools.
Share, post and embed pictures across sites and apps.
Work with the format in editors like Photoshop and GIMP.
Keep memories and assets in a widely-readable form.
| ✔ Strengths | ✖ Limitations |
|---|---|
| Purpose-built for its niche | No transparency support |
| Limited support — may need converting |
Remove the background from PSB images, upscale to 4K, or generate new visuals with SharkFoto AI.
PSB (Photoshop Big) is Photoshop's large-document format, identical to PSD but supporting images beyond 30,000 pixels and 2GB for huge artwork.
PSB opens in Photoshop and Affinity Photo; convert to TIFF/PNG to share with other tools.
PSB is optimised for its specific use rather than strictly lossless storage.
Use SharkFoto's free tools — upload your PSB file and convert it to a more convenient format in seconds. It's free, processed securely and never stored.
No — PSB doesn't store transparency; convert to PNG or WEBP if you need it.