On iPhone (Safari or Mail):

1. Tap the PDF link or attachment – it will open in a new window.

2. Tap the share icon (a square with an arrow pointing up).

3. Choose Save to Files (to keep it in your iCloud/phone storage) OR Books (to save it in Apple Books for easy access).

4. Open later from your chosen app anytime.

On Android (Chrome or Gmail):

1. Tap the PDF link or attachment – it will open in your browser or PDF viewer.

2. Tap the download icon (usually a downward arrow) or More Options (⋮).

3. Choose Download or Save to Drive.

4. Find it later in your Files app or Google Drive.

💡 Tip: If the PDF opens in your browser and you want to save it, just tap the share/download button and select where you’d like it saved.