GhostPDF

GhostPDF+ is a modern, native macOS application designed to be a comprehensive, privacy-focused toolkit for PDF management. Powered by Ghostscript and built with SwiftUI, it offers professional-grade tools without monthly subscriptions.

Key Features:

• Advanced Compression: Reduce PDF file sizes by up to 90% with smart presets or custom DPI controls.
• 100% Offline & Private: Your sensitive data—bank statements, contracts, legal docs—never leaves your Mac.
• PDF Manipulation: Merge documents, split by page ranges, reorder pages, or rotate orientations.
• Security Tools: Encrypt documents (AES-128), remove passwords, and add watermarks.
• Repair & Archive: Fix corrupted files and convert to PDF/A.

Pricing & Versions: GhostPDF+ is Open Source (AGPLv3) and the features are exactly the same in both versions. The only difference is convenience:

1. Paid Version (Bundled): The "Plug & Play" option. It comes pre-bundled with Ghostscript, so it works instantly out of the box. No setup required.
2. Free Version (Bring Your Own Engine): The exact same application code. However, to use it, you must manually install Ghostscript on your Mac (e.g., via Homebrew: brew install ghostscript). If you don't install the engine, the app will not function.

This model lets you pay for the convenience of an all-in-one install, or use the full professional software for free if you are comfortable managing your own dependencies.