內容簡介
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總結:
- Raina Image Compression 是一個強大的 WordPress 外掛，可在上傳期間自動優化圖像，同時為壓縮、輸出格式和元數據提供完全控制。此外，它適用於希望快速加載頁面、具有 SEO 友好圖像和可靠系統以防止用戶上傳大型、未優化檔案的網站擁有者。
<ul>
<li>智能圖像優化
<li>自動壓縮 JPG 和 PNG 圖像。
<li>將非透明 PNG 轉換為 JPG 以獲得更好的壓縮效果而不會看到明顯的質量損失。
<li>輸出模式選擇（4 種可用模式）
<li>最大寬度控制
<li>智能 JPG 尺寸縮小（按 KB 限制）
<li>僅從文章編輯器壓縮（可選）
<li>自動填充元數據
<ul>
<li>ALT、描述和標題（文字摘要）字段，利於提升 SEO。
</ul>
<li>管理員工具欄切換
<li>Telegram 通知（可選）
<li>日誌記錄
<li>輕量而兼容
</ul>
問與答:
1. Raina Image Compression 主要是為哪些網站擁有者設計的？
- 答: Raina Image Compression 主要是為希望快速加載頁面、具有 SEO 友好圖像和可靠系統以防止用戶上傳大型、未優化檔案的網站擁有者設計。
2. 這個外掛的主要特點是什麼？
- 答: 主要特點包括智能圖像優化、輸出模式選擇、最大寬度控制、自動填充元數據、管理員工具欄切換和 Telegram 通知等。
3. Raina Image Compression 的許可證是什麼？
- 答: 這個外掛是以 GNU General Public License 的條款下發布的免費軟體，用戶可在 Free Software Foundation 出版的第 2 版或更高版本下重新散發或修改。
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外掛標籤
開發者團隊
原文外掛簡介
Raina Image Compression is a powerful WordPress plugin that automatically optimizes images during upload while giving full control over compression, output format, and metadata. It is designed for site owners who want fast-loading pages, SEO-friendly images, and a reliable system that prevents users from uploading huge, unoptimized files.
The plugin works with the built-in GD library and intelligently handles JPG, PNG, and WebP formats. It can also convert non-transparent PNGs to JPG, achieving better compression without visible quality loss.
Ideal for multi-author sites or blogs managed by non-technical users, Raina Image Compression operates automatically in the background, optionally sends Telegram notifications, and keeps your image sizes under control.
Key Features
Smart Image Optimization
– Automatically compresses JPG and PNG images.
– Converts non-transparent PNGs to JPG for better performance.
Output Mode Selection (4 available modes)
Choose how your images are generated after upload:
– 1. JPG/PNG ONLY Compresses only JPG and PNG files.
– 2. WEBP ONLY Creates only a WebP version.
– 3. JPG/PNG PRIMARY + WEBP COPY Keeps the original JPG/PNG as the main file and creates a WebP copy in the media library.
– 4. WEBP PRIMARY + JPG/PNG COPY Sets the WebP image as the primary file while retaining a JPG/PNG copy for compatibility.
Maximum Width Control
Set a maximum pixel width for uploaded images to automatically resize large photos from cameras or smartphones.
Smart JPG Size Reduction (by KB Limit)
When enabled, the plugin will try to reduce a JPG’s file size to stay below a specific kilobyte (KB) limit by dynamically lowering the quality level until the target is reached. ( ONLY FOR JPG and No transparent PNG )
Compress Only from Post Editor (Optional)
Option to limit compression to images uploaded directly from the WordPress post editor, excluding other uploads from plugins or themes or media library.
Post Type Filter
Added a new option to select which post types the plugin should apply to. If none are selected, all post types will be processed.
Keep Original File Copy
Option to create a full-size copy of the original uploaded image in the media library for backup or archival purposes.
Disable WP Auto-Generated Thumbnails
Option to disable WP Auto-Generated Thumbnails. Save disk space by preventing WordPress from creating unnecessary image files.
Automatic Metadata Filling
Automatically fills ALT, Description, and Caption (Excerpt) fields using the parent post information — ideal for improving SEO with no extra effort.
Admin Bar Toggle
Easily enable or disable compression from the WordPress admin bar without entering the settings page, handy when you want to upload images related to the theme or the builder, basically content not associated with any post type.
Telegram Notifications (Optional)
If the “Notifications for Telegram” plugin is installed, you will receive a message for each processed image containing:
– File name
– Format
– Compression ratio
Logging
Can Records all compression events to the WordPress debug log (wp-content/debug.log) for debugging or performance tracking.
Lightweight & Compatible
– Works entirely on your server with no external API, CDN or remote requests.
– Fully compatible with shared hosting environments.
– No third-party dependencies.
Ideal Use Cases
Websites managed by non-technical users who often upload large, unoptimized images.
Site owners and developers who want full control over compression settings.
Blogs or news sites that require consistent image optimization without external services.
Summary
Raina Image Compression was built to solve a common problem: users uploading excessively large images that slow down websites.
It works quietly in the background, optimizing every image for size, speed, and SEO — so your site stays fast, clean, and professional.
License
This plugin is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
