ImageToolPro

A native macOS application for image compression and format conversion, built specifically for macOS Tahoe 26.0+.

Features

Compress Tab

• Supported Formats: HEIC, PNG, JPG, WebP, TIFF, BMP
• Quality Control: Adjustable compression from 10% to 90% (default 80%)
• Batch Processing: Drag and drop multiple files
• Before/After Comparison: See original and compressed file sizes
• Smart Compression: Lossless compression optimized for each format

Convert Tab

• Input Formats: HEIC, PNG, JPG, WebP, SVG, TIFF, BMP
• Output Formats: JPG, PNG, WebP
• Batch Conversion: Convert multiple files at once
• Original Dimensions: Maintains image size during conversion

Settings

• Replace Original Files: Option to replace or keep originals
• Custom Output Location: Choose where to save processed files
• Filename Suffix: Optionally add custom suffix (e.g., -compressed)

System Requirements

• macOS Tahoe 26.0 or later
• Apple Developer account for code signing (free account works)

Building the App

Prerequisites

1. Install Xcode 16+ from the Mac App Store
2. Make sure you have Xcode Command Line Tools installed:

   xcode-select --install

Build Steps

1. Create Xcode Project:

   cd /path/to/ImageToolPro
   
   # Create a new Xcode project directory structure
   mkdir -p ImageToolPro.xcodeproj

2. Open in Xcode:

   • Launch Xcode
   • File → New → Project
   • Choose "macOS" → "App"
   • Product Name: ImageToolPro
   • Interface: SwiftUI
   • Language: Swift
   • Save to the parent directory of this folder

3. Replace Source Files:

   • Delete the default ContentView.swift and other starter files
   • Add all the .swift files from this directory to your Xcode project
   • Drag and drop: ImageToolProApp.swift, ContentView.swift, CompressView.swift, ConvertView.swift, SettingsView.swift, DropZoneView.swift, ImageProcessor.swift, AppSettings.swift, ImageFileInfo.swift

4. Configure Project:

   • Select your project in the navigator
   • Under "Signing & Capabilities":
     • Check "Automatically manage signing"
     • Select your Team (your Apple ID)
     • Bundle Identifier: com.yourname.ImageToolPro
   • Under "General":
     • Deployment Target: macOS 26.0
     • Minimum System Version: 26.0

5. Build:

   • Product → Build (⌘B)
   • If successful, Product → Archive
   • In the Organizer window, select "Distribute App"
   • Choose "Copy App" to export the signed .app file

6. Run:

   • The built app will be in: ~/Library/Developer/Xcode/DerivedData/ImageToolPro-*/Build/Products/Debug/ImageToolPro.app
   • Or use Product → Run (⌘R) to test it directly

Alternative: Command Line Build

If you prefer building from the command line:

# Navigate to your Xcode project directory
cd /path/to/ImageToolPro

# Build for Release
xcodebuild -scheme ImageToolPro -configuration Release -derivedDataPath ./build

# The app will be in:
# ./build/Build/Products/Release/ImageToolPro.app

Code Signing

For distribution outside the Mac App Store:

1. Developer ID Certificate (requires paid Apple Developer account):

   codesign --force --deep --sign "Developer ID Application: Your Name" ImageToolPro.app

2. Notarization (for Gatekeeper compatibility):

   # Create a zip
   ditto -c -k --keepParent ImageToolPro.app ImageToolPro.zip
   
   # Submit for notarization
   xcrun notarytool submit ImageToolPro.zip --apple-id your@email.com --team-id TEAM_ID --wait
   
   # Staple the ticket
   xcrun stapler staple ImageToolPro.app

Usage

1. Launch ImageToolPro

2. To Compress:

   • Select the "Compress" tab
   • Adjust quality slider (default 80%)
   • Drag and drop images
   • Click "Compress Images"

3. To Convert:

   • Select the "Convert" tab
   • Choose output format (JPG, PNG, or WebP)
   • Drag and drop images
   • Click "Convert Images"

4. Settings (⌘,):

   • Configure output behavior
   • Set custom output location
   • Add filename suffix

Troubleshooting

"ImageToolPro" is damaged and can't be opened

This happens if the app isn't signed. Right-click the app and select "Open", then click "Open" in the dialog.

Images aren't processing

• Check that the images are in supported formats
• Ensure you have write permissions to the output directory
• Check the status column for specific error messages

WebP support

macOS doesn't have native WebP encoding. The app currently converts to PNG as a fallback for WebP output.

License

Built for personal use. Modify and distribute as needed.

Credits

Built with SwiftUI for macOS Tahoe 26.0+ Optimized for web designers and developers who need fast, reliable image compression and conversion.

Author

Eric Caldwell - WebJIVE

• Website: https://www.web-jive.com
• 19+ years of digital marketing experience serving Arkansas businesses