You need at least for the base install, but realistically 8–10 GB for fonts, plugins, and scratch disks.
Completely uninstall any existing Adobe software using Adobe's official uninstaller tool, then use Adobe Creative Cloud Cleaner Tool to remove all remaining traces before retrying.
Drag the Adobe Illustrator CC 2020 application icon from your Applications folder directly into the Terminal window (this auto-fills the file path).
At least 3 GB of available hard-disk space for installation; additional free space required during installation.
Inside the MacOS folder, locate the Unix executable file named . install adobe illustrator cc 2020 on mac pre top
This is a common macOS Gatekeeper response to older packages. Open your Terminal app ( Applications > Utilities > Terminal ) and type: sudo spctl --master-disable . Press Enter, input your Mac password, and try opening the installer again. (You can re-enable security later by typing sudo spctl --master-enable ).
Use "Adobe Fonts" within the app to sync typography without manual installation. Troubleshooting Common Issues If the installer hangs or crashes, try these quick fixes:
Fix: Ensure Font Book is updated. Old, corrupt system fonts can cause Illustrator's type engine to crash on startup.
2 GB of available space for installation; SSD preferred. You need at least for the base install,
Double-click the DMG file to mount it on your desktop.
Once Illustrator CC 2020 is installed, take these steps to optimize your experience:
The Adobe Creative Cloud desktop app will now download and install Adobe Illustrator CC 2020 on your Mac Pro. Depending on your internet connection, this process may take several minutes to complete.
Installing Adobe Illustrator CC 2020 on a Mac requires specific steps, as it is no longer the current version officially offered by Adobe's standard installer . Most current installation guides from Adobe will point you to the latest version. At least 3 GB of available hard-disk space
Go to Contents > MacOS and run the Unix executable named Install . This bypasses many GUI-based errors. Authenticate: Enter your Mac password when prompted. 🚀 Post-Installation Tips
macOS Catalina (version 10.15), macOS Mojave (version 10.14), or macOS High Sierra (version 10.13). Processor: Multicore Intel processor with 64-bit support. RAM: Minimum 8 GB (16 GB highly recommended).
To prevent installation errors, follow these preparation steps: Use Time Machine to back up your system.
Find in the list, then click the three dots (...) next to the "Open" or "Install" button. Select Other Versions from the dropdown menu.