Title: Image Shift – Convert, optimize and watermark AVIF & WebP media images Author: digitalpoint Published: 2026 年 1 月 23 日 Last modified: 2026 年 1 月 24 日 --- 搜尋外掛 ![](https://ps.w.org/image-shift/assets/banner-772x250.jpg?rev=3445755) ![](https://ps.w.org/image-shift/assets/icon.svg?rev=3445755) # Image Shift – Convert, optimize and watermark AVIF & WebP media images 由 [digitalpoint](https://profiles.wordpress.org/digitalpoint/) 開發 [下載](https://downloads.wordpress.org/plugin/image-shift.1.0.1.zip) [即時預覽](https://tw.wordpress.org/plugins/image-shift/?preview=1) * [詳細資料](https://tw.wordpress.org/plugins/image-shift/#description) * [使用者評論](https://tw.wordpress.org/plugins/image-shift/#reviews) * [安裝方式](https://tw.wordpress.org/plugins/image-shift/#installation) * [開發資訊](https://tw.wordpress.org/plugins/image-shift/#developers) [技術支援](https://wordpress.org/support/plugin/image-shift/) ## 外掛說明 A simple and lightweight plugin that can automatically convert Media images to the WebP or AVIF image format as they are uploaded. Includes the ability to add watermarks to uploaded images. Support for optionally retaining backups of the original image. * No cost, no subscriptions * No reliance on transmitting your images to a third party server * Support for multisite networks * No third-party PHP libraries are used * JavaScript is native (does not use jQuery) **Modern image formats** AVIF images are [~50% smaller than JPEG images](https://web.dev/articles/compress-images-avif), and WebP images are [~30% smaller than JPEG images](https://developers.google.com/speed/webp/docs/webp_study) with the same image quality. ## 螢幕擷圖 * [[ * Simple setup within WordPress. ## 安裝方式 **From your WordPress dashboard** 1. Navigate to “Plugins” -> Add New 2. Search for `Image Shift` 3. Activate Image Shift from your Plugins area **Manual upload** 1. Download Image Shift 2. Upload the `image-shift` directory to your `/wp-content/plugins/` directory 3. Activate Image Shift from your Plugins area ## 常見問題集 ### Does this work with multisite networks? Yes. This can be deployed on a per-side basis or network-wide for all sites. ### Does this convert images I’ve uploaded in the past? It does not convert images uploaded before installing this plugin. Changing image extensions and URLs after the fact can lead to issues where previously referenced images no longer work. If you use Cloudflare (even the Free plan), you can use Image Transformations to automatically convert legacy images to modern formats with the free [App for Cloudflare®](https://wordpress.org/plugins/app-for-cf/) plugin. ### I have an idea for this plugin, can I make a suggestion? Yes, please do! You can find the suggestion area [over here](https://wordpress.org/support/plugin/image-shift/). ## 使用者評論 ![](https://secure.gravatar.com/avatar/c336b608c8931c4e6dc1e28cc2640cb9e6b6cd8365a7c68c10251555b1fa9928? s=60&d=retro&r=g) ### 󠀁[100% functional and non-intrusive](https://wordpress.org/support/topic/100-functional-and-non-intrusive/)󠁿 [vmadien](https://profiles.wordpress.org/vmadien/) 2026 年 1 月 24 日 5 則留言 Finally, an extension capable of converting to AVIF or WebP and adding a watermark for free and without using a CDN. Plus, it doesn’t display ads all over the admin interface to push for the CDN version. My only regret is that you can’t choose to keep a backup of the original image or remove the watermark. Maybe in a future update? [ 閱讀全部 1 則使用者評論 ](https://wordpress.org/support/plugin/image-shift/reviews/) ## 參與者及開發者 以下人員參與了開源軟體〈Image Shift – Convert, optimize and watermark AVIF & WebP media images〉的開發相關工作。 參與者 * [ digitalpoint ](https://profiles.wordpress.org/digitalpoint/) [將〈Image Shift – Convert, optimize and watermark AVIF & WebP media images〉外掛本地化為台灣繁體中文版](https://translate.wordpress.org/projects/wp-plugins/image-shift) ### 對開發相關資訊感興趣？ 任何人均可[瀏覽程式碼](https://plugins.trac.wordpress.org/browser/image-shift/)、 查看 [SVN 存放庫](https://plugins.svn.wordpress.org/image-shift/)，或透過 [RSS](https://plugins.trac.wordpress.org/log/image-shift/?limit=100&mode=stop_on_copy&format=rss) 訂閱[開發記錄](https://plugins.trac.wordpress.org/log/image-shift/)。 ## 變更記錄 #### 1.0.1 (2026-01-24) * Added option to retain original image as a backup. #### 1.0.0 (2026-01-23) * Initial release of Image Shift for WordPress. ## 中繼資料 * 版本 **1.0.1** * 最後更新 **4 個月前** * 啟用安裝數 **10+** * WordPress 版本需求 ** 5.8 或更新版本 ** * 已測試相容的 WordPress 版本 **6.9.4** * PHP 版本需求 ** 7.1.0 或更新版本 ** * 語言 * [English (US)](https://wordpress.org/plugins/image-shift/) * 標籤: * [AVIF](https://tw.wordpress.org/plugins/tags/avif/)[compress images](https://tw.wordpress.org/plugins/tags/compress-images/) [optimize images](https://tw.wordpress.org/plugins/tags/optimize-images/)[watermark](https://tw.wordpress.org/plugins/tags/watermark/) [webp](https://tw.wordpress.org/plugins/tags/webp/) * [進階檢視](https://tw.wordpress.org/plugins/image-shift/advanced/) ## 評分 4 星，滿分為 5 星 * [ 0 個 5 星使用者評論 ](https://wordpress.org/support/plugin/image-shift/reviews/?filter=5) * [ 1 個 4 星使用者評論 ](https://wordpress.org/support/plugin/image-shift/reviews/?filter=4) * [ 0 個 3 星使用者評論 ](https://wordpress.org/support/plugin/image-shift/reviews/?filter=3) * [ 0 個 2 星使用者評論 ](https://wordpress.org/support/plugin/image-shift/reviews/?filter=2) * [ 0 個 1 星使用者評論 ](https://wordpress.org/support/plugin/image-shift/reviews/?filter=1) [Your review](https://wordpress.org/support/plugin/image-shift/reviews/#new-post) [查看全部使用者評論](https://wordpress.org/support/plugin/image-shift/reviews/) ## 參與者 * [ digitalpoint ](https://profiles.wordpress.org/digitalpoint/) ## 技術支援 使用者可在技術支援論壇提出意見反應或使用問題。 [檢視技術支援論壇](https://wordpress.org/support/plugin/image-shift/) ## 贊助 想要支援這個外掛的發展嗎？ [ 贊助這個外掛 ](https://wordpress.org/plugins/image-shift/)