Download SHAREit to your iPhone from App Store. Select the location and save the web page as PDF.
On iPhone, tap the Horizontal Ellipsis (three-dot) icon to the lower-right corner of the screen. Next, head over to any site and then the webpage which you want to save as PDF. How to Open PDF Files Saved on Your Device. Open the Safari Browser on your iPhone and visit the website from which you want to download the Book, Manual or any material in PDF Format.
How to download pdf to iphone Tap (or select) the 'General' tab.