What Thumbnail Manager Does
Understand registered sizes, missing thumbnails, recommendations, resumable jobs, and review-first pruning.
Category
Thumbnail Manager
Learn how to audit registered image sizes, control future thumbnails, regenerate missing or selected files, review and approve prune manifests, monitor resumable jobs, troubleshoot media issues, and update safely.
Plan, implement, and verify Thumbnail Manager.
Use the product page to evaluate scope and this hub for exact setup, operation, and troubleshooting steps.
Section
Getting Started
Install Thumbnail Manager and Audit Image Sizes
Install version 1.4.0 and establish a safe baseline before changing generated files.
Section
Configuration
Choose Thumbnail Sizes for Future Uploads
Disable unwanted registered image sizes without deleting existing files.
Section
Media Management
Regenerate Missing or Selected Thumbnails
Rebuild absent image sizes after theme, WooCommerce, migration, or media changes.
Force Regenerate Thumbnail Metadata and Files
Rebuild selected sizes from the original source when ordinary missing-only generation is insufficient.
Scan, Review, and Approve a Prune Manifest
Remove old generated thumbnails through the five-step immutable manifest workflow.
Section
Tools & Admin
Monitor, Resume, or Cancel Thumbnail Jobs
Operate persistent recommendation, regeneration, scan, and deletion jobs safely.
Section
Troubleshooting
Troubleshoot Thumbnail Regeneration and Pruning
Diagnose stuck jobs, missing originals, permissions, manifest changes, metadata, and frontend image regressions.
Section
Updates & migrations
Update Thumbnail Manager Safely
Update without losing persistent jobs, manifests, size choices, or Media Library safety.