How to Compress PDF on iPhone\n\nShrink PDF files on your iPhone without installing any app.\n\n---\n\n## Steps\n\n1. Open **[Compress PDF](/compress-pdf)** in Safari or Chrome on your iPhone.\n2. Tap to upload your PDF.\n3. Select compression level.\n4. Download the smaller file.\n\n---\n\n## Related Tools\n- [Compress PDF](/compress-pdf)\n- [Merge PDF](/merge-pdf)\n- [JPG to PDF](/jpg-to-pdf)