How to Fix PDF Reader Pro Installation Issues on Mac

If you’re unable to install PDF Reader Pro on your Mac — for example, the installer won’t open, the system says it’s from an unidentified developer, or the setup stops unexpectedly — try the steps below.

1. Installing from the Mac App Store

✅  For a Smooth Installation

• Open App Store → Search PDF Reader Pro → Click Get or Install

• Make sure you’re signed in with your Apple ID

• Verify your Wi-Fi connection is stable

• Go to System Settings → General → Software Update to check for pending macOS updates

• Leave enough storage space before installing
  
  

⚠️ If Installation Doesn’t Complete

• Restart & Retry: Quit the App Store completely, restart your Mac, and try downloading again

• Apple ID Issue: Sign out of the App Store, restart your Mac, and sign in again

• App Store Cache Issue: In rare cases, sign out and clear cache using Cmd + Shift + R within the App Store window

• Outdated System Components: Update both macOS and App Store to the latest version

• Firewall or Network Restriction: Go to System Settings → Network → Firewall, and temporarily turn off restrictive rules if needed

📎 If you can’t download or install apps from App Store, you can also seek help from Apple’s official Support.

2. Installing from the Official Website

✅ For a Smooth Installation

• Download the latest version of PDF Reader Pro from our official website.

• Open the .dmg file and drag the app icon into the Applications folder. If you downloaded the .pkg file, you can directly double-click to open it.

• If you see a warning saying the app is from an unidentified developer:

• Go to System Settings → Privacy & Security,

• Scroll to Security and click Open Anyway.

• Make sure you have enough disk space.

• Close all running apps before installing to avoid conflicts.

⚠️ If You Encounter Problems

• “App Can’t Be Opened” Alert: Go to Privacy & Security → Security, then click Open Anyway next to PDF Reader Pro.

• Corrupted Installer: Delete the downloaded file and get a fresh copy from our website.

• Limited Permissions: Make sure you’re using an admin account or enter your Mac password when prompted.

• “Unknown Developer” Message: Follow Apple’s official steps to open apps from unidentified developers.

If you have any other questions, feel free to contact us at support@pdfreaderpro.com.