Online PDF Compressor vs PDFOptim
| Online PDF Compressor | PDFOptim | |
|---|---|---|
| Free plan | Yes | Yes |
| Free trial | No | No |
| Paid from | Free | $4.99/mo |
| Open source | No | No |
| Platforms | Web | iOS, macOS, Web, Windows |
| Free plan | Yes | Yes |
| Maximum file size | 100 MB | 25 MB |
| Batch compression | No | Yes |
| Offline desktop app | No | Yes |
| API access | Yes | — |
| Supported platforms | web | web, macos, ios, windows |
| Paid from | — | 4.99 /mo |
| Compression modes | — | balanced |
Both are listed in Best PDF Compression Software. On Everything Xiaomi, PDFOptim scores higher on our published basis.