How to Compress a PDF on iPhone

Sharing large PDFs on an iPhone can be frustrating — email size limits, slow uploads, and storage concerns all make file size a real problem.

Doclair is a Progressive Web App (PWA) that works in mobile Safari without any installation required.

Step 1: Open Safari on your iPhone and go to Doclair's Compress PDF tool.

Step 2: Tap the upload area. iOS will show you the Files app picker — navigate to your PDF.

Step 3: Select your compression level and tap "Compress PDF".

Step 4: Tap "Download" and choose where to save the compressed file.

Can I install Doclair on my iPhone home screen? Yes. Tap the Share button in Safari, then tap "Add to Home Screen".

Does this work on iPad? Yes. The process is identical on iPad with Safari.