📄 7. FAQ & Further Recommendations

This section provides answers to frequently asked questions and offers final recommendations to help you get the most out of the JaJuMa WebP Optimized Images extension.

❓ 7.1 Frequently Asked Questions

Q: Which conversion tool is the best?

A: We recommend cwebp for the best possible balance of high quality and small file size. It is Google's official tool and offers the most advanced compression options. For maximum compatibility and the easiest setup, GD is an excellent choice as it works on nearly any Magento server out-of-the-box.

Q: What "WebP Quality" setting should I use?

A: A value of 75 is an excellent starting point and the recommended default.

• Higher values (e.g., 90) will produce higher-quality images but with larger file sizes.
• Lower values (e.g., 60) will create smaller files but may introduce visible compression artifacts. The best approach is to use the Test & Preview Conversion tool to find the optimal setting that meets your quality standards while maximizing file size savings.

Q: Will this extension work with my Content Delivery Network (CDN)?

A: Yes. The extension is fully compatible with CDNs (like Cloudflare, Fastly, etc.) and Magento's Full Page Cache (FPC). It modifies the HTML on the server before the page is cached and delivered to the CDN. However, it is critical to remember to clear your CDN cache and any other caching layers after you clear the WebP Image Cache or make significant configuration changes. This ensures that the CDN fetches the updated HTML and serves the correct new images.

Q: Where can I find a full list of advanced conversion parameters?

A: For users who want to use the "Advanced Mode" for cwebp or Imagemagick, you can find a complete list of all available commands and flags in their official documentation:

• cwebp Official Documentation: https://developers.google.com/speed/webp/docs/cwebp
• Imagemagick WebP Documentation: https://www.imagemagick.org/script/webp.php

Q: Why are my CSS background images not being converted?

A: The extension is designed to convert images rendered in the HTML via <img> tags. It cannot automatically convert images applied via CSS background-image. However, we provide a simple CSS-based solution that allows you to serve WebP backgrounds with a fallback for older browsers. Please see the "How to Use WebP for CSS Background Images" section in our(./advanced-troubleshooting).

We hope this FAQ has answered your questions. To review all the capabilities of the extension, you can always return to the main guide for WebP Optimized Images.

📞 Need Help?

We hope this guide has resolved your issue. If you still have questions or need personalized assistance, we're here to help.

Before Contacting Support

To help us resolve your issue as quickly as possible, please include the following information in your support request:

• Your Order Number
• Magento Version (e.g., 2.4.6-p5)
• WebP Optimized Images Extension Version
• A clear description of the issue you are experiencing
• Steps to reproduce the issue
• Any relevant error messages or log file excerpts

For technical issues or specific questions, please don't hesitate to contact our support team.