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How to Bulk Compress WordPress Images on Linux VPS: JPG, PNG & WebP Optimization Guide (2026)
Over time, the WordPress media library can easily build up several gigabytes, or even tens of gigabytes, of unoptimized images. For selfโmanaged VPS users, the most efficient approach is batch compression directly on the server. There is no need to download and process files oneโbyโone, nor do you need premium plugins. This tutorial walks through three core solutions: jpegoptim for JPG compression, optipng for PNG compression, cwebp for WebP conversion, plus a reasonably safe batch processing script.