avif-format

An AV1 Image (AVIF) file format plug-in for Adobe® Photoshop®.

Single images can be loaded and saved using 8, 10 or 12 bits-per-channel, image sequences and animations are not supported.

Lossless RGB compression is supported when saving 8-bits-per-channel images, the plug-in considers all bit-depth conversions to be lossy. Photoshop edits 10-bit and 12-bit data as 16-bit which then has to be remapped to the 10-bit or 12-bit range when saving, and converting 8-bit data to 10-bit or 12-bit will cause a loss of precision.

This plug-in uses libheif with the AOM decoder and encoder.

The latest version can be downloaded from the Releases tab.

System Requirements

• Windows 7, 8, 10 or 11.
• A compatible 32-bit or 64-bit host application.

Installation

1. Close your host application.
2. Place Av1Image.8bi in the folder that your host application searches for file format plug-ins.
3. Restart your host application.
4. The plug-in will now be available as the AV1 Image item in the Open and Save dialogs.

Installation in Specific Hosts

Photoshop

Photoshop CC common install folder: C:\Program Files\Common Files\Adobe\Plug-ins\CC
Version-specific install folder: C:\Program Files\Adobe\Photoshop [version]\Plug-ins

Updating

Follow the installation instructions above and allow any existing files to be replaced.

License

This project is licensed under the terms of the GNU Lesser General Public License version 3.0.
See License.md for more information.

Source code

Prerequisites

• Visual Studio 2019
• The dependencies in the 3rd-party folder, see the read-me in that folder for more details.

Building the plug-in

• Open the solution in the vs folder
• Update the post build events to copy the build output to the file formats folder of your host application
• Build the solution

 Adobe and Photoshop are either registered trademarks or trademarks of Adobe Systems Incorporated in the United States and/or other countries.
 Windows is a registered trademark of Microsoft Corporation in the United States and other countries.   
 All other trademarks are the property of their respective owners.