Pages 5.6.2 was a significant update released by Apple designed to run smoothly on OS X 10.11 (El Capitan) and later. It bridges the gap between older Apple hardware and modern document formatting. Improved Compatibility: Optimized for OS X El Capitan.
Then try opening again.
Sometimes, Apple Support offers older versions of iWork for legacy systems. You can search the Apple Official Support Page for "iWork 9.3" or "Pages" to find direct, verified DMG links. pages 562 dmg download verified
If it says "Install" or has a cloud icon, the App Store will automatically download the . Method 2: Authorized Apple Support Resources Pages 5