Niquelao Image Optimizer

Niquelao Image Optimizer automatically compresses images on upload and allows bulk re-optimization of your entire existing media library. It uses Imagick (preferred) or GD (fallback) — no external dependencies or API keys needed.

Features:

• Automatic optimization on every upload
• Bulk optimization of the existing media library
• Optional WebP conversion for every image
• Optional automatic .webp serving via .htaccess under the same original URL (no redirects)
• WordPress thumbnail optimization
• Automatic backup of the original file before processing
• Optional thumbnail backups (disabled by default) plus a Maintenance screen to scan, download and purge accumulated backups
• Detailed savings statistics per file type
• Copyright/authorship EXIF metadata preserved after stripping
• Optional automatic resizing with configurable maximum width and height
• Compatible with Imagick (preferred) and GD (fallback)
• No external dependencies — works on any shared hosting

Requirements

• WordPress 5.8 or higher
• PHP 7.4 or higher
• Imagick or GD extension enabled on the server

1. Upload the niquelao-image-optimizer/ folder to /wp-content/plugins/
2. Activate the plugin from Plugins → Installed Plugins
3. Configure it under Niquelao Optimizer → Settings

1. 

   Settings — image resizing, compression quality (JPEG/PNG/WebP) and processing options

2. 

   Bulk Optimization — reoptimize your entire existing media library with a progress bar

3. 

   Savings Statistics — totals by file type and a log of the most recent optimizations

4. 

   Diagnostics — Imagick/GD availability, WebP support and uploads folder permissions

5. 

   Settings — backup options and the new automatic WebP serving via .htaccess (no redirects)

6. 

   Maintenance — scan, download and purge accumulated .niquelao-bak backup files in batches

1.5.1

• Fixed: Plugin Check findings — replaced direct unlink() calls with wp_delete_file() in the Maintenance ZIP download and cleanup routines
• Fixed: added justified phpcs:ignore annotations for the unavoidable direct is_writable()/readfile() filesystem calls used to manage .htaccess and stream the temporary backup ZIP (no WP_Filesystem equivalent exists for these specific operations)
• Fixed: added justified phpcs:ignore annotations for $_POST['offset']/$_POST['token'] reads in Maintenance AJAX handlers, where the nonce is already verified via check_ajax_referer() inside check_permissions() earlier in the same method
• Fixed: removed the remote Google Fonts @import in the admin stylesheet (present since the first approved version) — admin UI now uses a local system-font stack, with no third-party assets loaded
• Fixed: missing i18n wrapper on the “No Imagick/GD detected” troubleshooting copy in the Diagnostics page
• Fixed: hardcoded Spanish strings in the Media Library inline JS (single-image optimize button) now routed through PHP __() and passed to the script as a translatable object
• Changed: README.md rewritten to match the current version and defer to readme.txt as the single source of truth for the changelog, instead of duplicating (and drifting out of sync with) it

1.5.0

• Added: optional setting “Servir WebP automáticamente” — inserts/removes a .htaccess block (via WordPress’ insert_with_markers()/extract_from_markers()) that serves the .webp version under the same original URL when the browser supports it, with no redirects and no URL changes
• Added: status indicators for mod_rewrite availability, .htaccess writability and whether the rule block is actually installed
• Added: the .htaccess block is automatically removed on plugin deactivation and uninstall, leaving no leftover server rules

1.4.0

• Added: optional “Keep thumbnail backups” setting (off by default) — when disabled, only the full-size original gets a .niquelao-bak copy instead of every generated thumbnail size, saving disk space and inodes
• Added: new Maintenance screen to scan, download (as ZIP) and bulk-purge accumulated .niquelao-bak files, processed in batches via AJAX to support shared hosting with execution time/inode limits
• Added: uninstall routine now also removes the temporary ZIP folder and the new backup-thumbs option

1.3.5

• Fixed: settings page hook suffixes were calculated manually and didn’t match the real hook suffixes generated by WordPress (which derive from the top-level menu_title, not the menu slug), causing CSS/JS to fail to load on Bulk Optimization, Statistics and Diagnostics pages
• Fixed: admin styles/scripts now use the real hook_suffix returned by add_menu_page()/add_submenu_page() instead of a hardcoded guess
• Fixed: media library “Optimize” button (upload.php/post.php) registered its own style/script handle instead of relying on a handle that wasn’t enqueued on those screens
• Fixed: synced plugin version number across the main file header, the NIQUELAO_VERSION constant and readme.txt Stable tag
• Fixed: missing i18n wrapper on one bulk-optimization status string

1.3.2

• Unified license to GPL-2.0-or-later across all files
• Added full internationalization (i18n) via () and esc_html() functions
• Updated Text Domain header to match plugin slug (niquelao-image-optimizer)
• Removed deprecated load_plugin_textdomain() call (auto-loaded since WP 4.6)
• Created uninstall.php to clean up table, options and postmeta on uninstall
• Fixed require_once order: all includes at the top of the main file
• languages/ folder ready for translations

1.3.1

• Updated Plugin URI to kokeperez.es

1.3.0

• Added automatic resizing with configurable maximum width and height
• EXIF Copyright/Artist metadata now preserved after stripping (Imagick and GD)

1.2.0

• Atomic file writes using a temporary file
• Improved diagnostics page

1.1.0

• Bulk optimization with progress bar
• WebP conversion support
• Statistics page

1.0.0

• Initial release