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ClockworkPDF

A desktop application for everyday PDF tasks. ClockworkPDF lets you merge, split, extract, insert, rotate, mix, and optimize PDF files from a single, focused interface

Documentation

Learn how to use ClockworkPDF effectively

Getting Started

Installing on macOS

  1. Download the DMG file and open it.
  2. Drag the app (.app) into the Applications folder.
  3. Open Applications and locate the app.
  4. Control-click (or right-click) the app and select Open.
  5. In the security prompt, click Open to launch the app.
The first launch may require this extra step because the app is not signed with an Apple Developer certificate. After opening it once, you can launch it normally.

If macOS blocks the app

  1. Open System Settings.
  2. Go to Privacy & Security.
  3. Scroll to the Security section.
  4. Click Open Anyway next to the blocked app message.
  5. Confirm by clicking Open.

Option 2: Allow using Terminal

If the app does not appear in Privacy & Security:

  1. Open Terminal.
  2. Run the following command:

sudo xattr -rd com.apple.quarantine /Applications/ClockworkPDF.app

  1. Enter your macOS password when prompted.
  2. Open the app normally.
This removes the macOS quarantine flag that blocks unsigned applications.