To download macOS High Sierra 10.13.6 as a DMG file, you must first understand that Apple officially distributes this version primarily through the Mac App Store as an .app file, not a direct DMG. However, there are several methods to obtain the full installer or convert it for your needs. 1. Official Download via the Mac App Store
hdiutil detach /Volumes/Install\ macOS\ High\ Sierra hdiutil convert /tmp/HighSierra.cdr.dmg -format UDTO -o /tmp/HighSierra.iso 4. Alternative Direct Download Links (Third-Party) download macos high sierra 1013 6 dmg file link
Open Mist, go to the tab, find "macOS High Sierra 10.13.6", and click the download icon to save it as a DMG or ISO. 3. Creating Your Own DMG File from the Installer To download macOS High Sierra 10
Open Safari and click this official macOS High Sierra App Store Link . Official Download via the Mac App Store hdiutil