DMG Maker

A premium macOS DMG creation tool with live-rendered SwiftUI backgrounds, glassmorphism, and Retina support.

Features

• Live Mesh Gradients: Professional backgrounds rendered on-the-fly using SwiftUI.
• Glassmorphic UI: Instruction area with native macOS "frosted glass" effects.
• Retina Ready: All assets and backgrounds are rendered at 2x scale for sharp displays.
• "No-Halo" Applications Link: Uses specialized naming tricks to prevent ugly dashed boxes in Finder.
• CLI Support: Headless creation for build pipelines.

Usage

GUI Mode

Simply run the app and drag your .app bundle onto the primary drop zone.

Quick Start:

1. Drop your .app bundle into the first zone.
2. (Optional) Drop a custom background into the second zone. If you don't, DMG Maker will generate a beautiful mesh-gradient background for you automatically!
3. Enter the Volume Name and click Create DMG.

CLI Mode

Generate consistent, high-quality DMGs directly from your terminal or build scripts:

swift run "DMG Maker" --app "/path/to/Your.app" --name "Volume Name"

The resulting DMG will be placed in the same directory as your input .app bundle.

Technical Details

• Requirements: macOS 14+.

Installation

1. Download DMGMaker.dmg from Releases
2. Open the DMG and drag DMG Maker.app to your Applications folder
3. Fix the security warning - on macOS Sequoia/Tahoe, double-clicking the app shows "Apple could not verify..." with no "Open Anyway" button. Use one of these fixes:
   • Easy: Double-click Fix Security.command (included in the DMG) -> Terminal opens, runs the fix, confirms with a dialog. (macOS may ask permission to run it - click Allow.)
   • Terminal: xattr -cr /Applications/DMG\ Maker.app
4. Open DMG Maker.app normally.

Security & Gatekeeper (macOS)

DMG Maker is not signed with a paid Apple Developer certificate. On macOS Sequoia and Tahoe, this means the app shows only "Move to Trash" when first launched - the "Open Anyway" button no longer appears in the dialog.

The fix is a one-liner:

xattr -cr /Applications/DMG\ Maker.app

Or use the Fix Security.command included in the DMG - just double-click it after dragging the app to Applications.

Support

If you find DMGMaker useful, please consider:

• Starring the repo to help others discover it.
• Buying me a coffee to support further development.

Your support helps keep this project free and open-source!