WordPress plugin comparison
PDF Compressor & Watermark vs Image Optimizer
At a glance
- Image Optimizer has more active installs: 1M+, against 500+ for PDF Compressor & Watermark.
- On a typical day, Image Optimizer is downloaded about 5,796 times, PDF Compressor & Watermark about 12.
- PDF Compressor & Watermark is rated higher: 3.4 out of 5 from 5 reviews, against 1.7 from 81 reviews.
- Image Optimizer was updated more recently: Sep 22, 2026, against Apr 30, 2026 for PDF Compressor & Watermark.
- Image Optimizer is tested with a newer WordPress: 7.0.8, against 6.9.11 for PDF Compressor & Watermark.
- PDF Compressor & Watermark has been around longer: since 2017, against 2024 for Image Optimizer.
Line by line
Image Optimizer leads on 6 of 7 comparable lines.
| Metric |  PDF Compressor & Watermark |  Image Optimizer |
|---|---|---|
| Popular rank | #8,608 | #58 |
| Active installs | 500+ | 1M+ |
| Downloads, last 30 days | 270 | 174.1K |
| Rating | 3.4(5) | 1.7(81) |
| Support threads resolved | – | 100% |
| Tested up to | 6.9.11 | 7.0.8 |
| Search multiplier | ×0.39 | ×1.28 |
| Last release | 6 months ago | 1 month ago |
| Requires PHP | 8.2 | 7.4 |
From WordPress.org's public data, refreshed every night. Downloads are WordPress.org's official daily figures for the last 30 days.
Tags they share
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