Beskriuwing
Force Regenerate Thumbnails allows you to delete all old images sizes and REALLY regenerate the thumbnails for your uploads.
Regenerate all thumbnails from the Tools admin menu. Regenerate batches of images via the Media Library list mode. Select the images to regenerate and then use the Bulk Actions drop-down menu to Force Regenerate Thumbnails. Use attachment actions to regenerate thumbnails for a single image.
Several filters exist for advanced usage. See more via this gist.
Skermôfbyldings
The plugin at work regenerating thumbnails 
You can resize specific multiples images using the checkboxes and the "Bulk Actions" dropdown
Ynstallaasje
- Go to your admin area and select Plugins -> Add new from the menu.
- Search for “Force Regenerate Thumbnails”.
- Click install.
- Click activate.
- Go to Tools -> Force Regenerate Thumbnails OR select specific images from the Media Library list mode to regenerate.
Resinsjes
Meiwurkers & amp; Untwikkelders
"Force Regenerate Thumbnails" is iepen boarne software. De folgjende minsken hawwe bydroegen oan dizze plugin.
Meiwurkers
"Force Regenerate Thumbnails" is oerset yn 22 lokaasjes. Tank oan de oersetters foar harren bydragen.
Oersette "Force Regenerate Thumbnails" yn jo taal.
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Feroaringslog
2.1.2
- changed: improved i18n for page headings and menu entries, props @alexclassroom
2.1.1
- fixed: invalid trailing comma syntax in PHP 7.2
2.1.0
- added: PHP 8.0 compatibility
- added: support generating thumbnails from original (pre-scaled), on by default
- added: support for PDF thumbnail generation
- added: ability to skip an image by regenerate_thumbs_skip_image filter
- changed: escape all output, sanitize all input
- changed: ensure all strings are i18n
- changed: remove HTML from i18n strings
- changed: improve path lookup function
- fixed: call to set_time_limit() when it is not allowed
2.0.6
- Add PHP7 compatibility
2.0.5
- No timeout limit
2.0.4
- Fix issue when “opendir()” return FALSE (thanks Krody Robert)
2.0.3
- Add debug information on regenerate
- Fix issue with update “_wp_attachment_metadata” and “_wp_attached_file” on windows
2.0.2
- New style for results (thanks @justonarnar)
- Automatic update “_wp_attachment_metadata” and “_wp_attached_file” (thanks @norecipes)
2.0.1
- Fix issue with get_option(‘upload_path’) in WordPress 3.5+ (thanks @DavidLingren)
2.0.0
- Fix error handle
Earlier versions
Please refer to the separate changelog.txt file.