=== WebP/AVIF image optimizer ===
Contributors: fastware
Tags: webp avif image optimize pagespeed
Stable tag: 1.0.7
Requires at least: 5.9
Tested up to: 6.1
Requires PHP: 7.4
License: GPLv3

== Description ==
Fast & simple plugin to automatically serve WebP & AVIF images to browsers which support those formats (with fallback to original format).

= Features =

- Automatically convert JP(E)G/PNG images to WebP/AVIF.
- Serve WebP/AVIF format to browsers which support those formats (relying on the "Accept" header).
- Images are queued ondemand, and converted in background via a scheduled task.
- Images which are never used (requested) will not be converted to save resources.
- All images are lossless converted, so no quality loss.
- No image URLs are changed, solution is purely based on .htaccess rewrite rules.
- WebP images are served as PNG when the browser/client does not support WebP (e.g. Microsoft Outlook).

= Browser support =

- WebP: all modern browsers
- AVIF: Chrome, Firefox, Safari (Edge doesn't support AVIF yet)

==Installation==

Install & activate the plugin and go!

= Server requirements =

- Apache 2.x with mod_rewrite enabled
- ImageMagick or GDlib with WebP support
- ImageMagick with AVIF support (optional)
 * You can use this plugin without AVIF support, in that case only WebP conversion is done
 * Conversion of **_transparent_** PNG-files to AVIF is not supported yet, but it works great for JP(E)G and not-transparent PNG images

= Good to know =

- It may take a few minutes before the WebP/AVIF images are generated after activating the plugin.
- AVIF is a relatively new format, and not widely supported yet on servers. This depends on your server configuration (see Server requirements).
- Generating AVIF images is CPU-intensive, and may take a while.
- WebP/AVIF format is only served when this format is smaller than the original JP(E)G/PNG file. Depending on the image, WebP/AVIF is not always the most efficient format.


== Changelog ==

- 1.0.7 [13-03-2023] Added admin dashboard to check plugin/server configuration
- 1.0.6 [07-03-2023] Fixed redirect bug on servers without avif support
- 1.0.5 [04-03-2023] Moved working directory, to improve cleanup after uninstall
- 1.0.4 [27-02-2023] Added support for PHP 7.4, fixed issue with scheduled converts
- 1.0.3 [22-02-2023] Adjust code to improve quality
- 1.0.2 [21-02-2023] Bugfix in GD convert
- 1.0.1 [18-02-2023] Stricter typing & ImageMagick as primary converter with GD as fallback
- 1.0.0 [17-02-2023] Initial version