Opacity Randomizer

Opacity Randomizer

Script for Adobe Illustrator

Overview

Opacity Randomizer is a powerful Adobe Illustrator script designed to help you randomly adjust the opacity of selected objects with ease, all while providing a real-time preview. Whether you’re working with individual items or entire groups, this script offers the flexibility to apply random opacity values dynamically across your selection.

Customize the opacity range with intuitive sliders and input fields, ensuring precise control over the effect. Perfect for adding depth and randomness to complex compositions, Opacity Randomizer ensures a smooth and non-destructive workflow.

Installation

  • Place the script in your Illustrator Scripts folder:

    MacOS:
     /Applications/Adobe Illustrator <Version>/Presets/<Language>/Scripts
    Windows: C:\Program Files\Adobe\Adobe Illustrator <Version>\Presets\<Language>\Scripts

  • Restart Adobe Illustrator to load the script into the File > Scripts menu.
  • Open your document and go to File > Scripts > Opacity Randomizer to launch the script.
  • When the script runs, a dialog box appears with the following components: 


 

➊ Opacity Range

The Opacity Range menu is a core component of the Opacity Randomizer script’s user interface. It allows you to define the range of opacity values that will be applied to the selected objects or groups. This menu ensures precise control over the randomization process by letting you set both the minimum and maximum opacity values.

1.1 Minimum Opacity

  • Functionality:
    Sets the lowest possible opacity value (0%–100%) that can be randomly applied to the selection.
  • Usage:
    Adjust the slider to define the minimum opacity visually or enter a numeric value in the input field for exact control.

1.2 Maximum Opacity

  • Functionality:
    Sets the highest possible opacity value (0%–100%) that can be randomly applied to the selection.
  • Usage:
    Adjust the slider to define the maximum opacity visually or enter a numeric value in the input field for precise adjustments.

ⓘ Tip: Use the Up and Down arrow keys to increment or decrement the value by 1%. Hold Shift while using the arrow keys to adjust by 10%.


➋ Randomization Target

The Opacity Randomizer script allow you to choose how the random opacity values are applied to the selection. These two options give you control over whether the opacity is applied to individual objects or to entire groups, enabling flexibility for various design needs.

2.1 Randomize opacity for each individual item

  • Functionality:

    •  Applies random opacity values individually to all objects within the selection.
    •  If the selection includes groups, it traverses into the groups and randomizes the opacity of each item inside.
  • Best For:

    •  
    Creating unique, varied opacity effects across all objects.
    •  Adding randomness to complex compositions with multiple elements.

2.2. Randomize opacity for groups as a whole

  • Functionality:

    •  
    Applies a single random opacity value to each group in the selection.
    •  The internal opacity of the objects within the group remains unchanged.
  • Best For:

    •  
    Adjusting the overall transparency of grouped elements while preserving their internal opacity relationships.
    •  Ensuring groups maintain a cohesive visual appearance.

ⓘ Note: Switching between the radio buttons automatically restores the original opacity of the selection and reapplies the randomization based on the chosen mode.


➌ Buttons Functionality

OK and Cancel buttons in the Opacity Randomizer script provide essential actions to finalize or cancel the randomization process. These buttons ensure a seamless and user-friendly workflow by allowing you to confirm changes or revert to the original state without hassle.

Finalize with OK Button


Purpose:

  • Finalizes the opacity randomization process and applies the changes permanently to the selection.

Functionality:

  • When clicked, it confirms the current random opacity settings (as defined by the sliders and radio buttons) and exits the script.
  • The applied randomization becomes part of the document, replacing the original opacity values.

Best For:

  • Completing the randomization process when you are satisfied with the changes.

Revert with Cancel Button


Purpose:

  • Discards all changes made during the session and restores the original opacity values.

Functionality:

  • When clicked, it reverts all objects to their original opacity values and exits the script.
  • No changes will be applied to the document.

Best For:

  • Undoing any changes and maintaining the original state of the design.


➍ Additional Features

Real-Time Update: As you adjust the sliders or input fields, the script immediately applies the changes to the selection, allowing you to preview the randomized opacity effect.

Open User Guide Button: Provides quick access to detailed instructions or helpful resources related to the script.


Whether you’re adding subtle transparency effects or creating dynamic opacity variations, this script simplifies the process with precision and flexibility.

Leave a comment

Opacity Randomizer

Version: 1.0.1

Updated:

    • 1.0.0 – Initial release.
    • 1.0.1 – Minor UI improvements.

    Tested on MacOS:

    • Adobe Illustrator 2023 (27.0)
    • Adobe Illustrator 2024 (28.1)
    • Adobe Illustrator 2025 (29.0.1)
  • Supported Versions:

    • Compatible with Adobe Illustrator CS6 and later, including Adobe Illustrator CC versions.

    Operating Systems:

    • Works on both macOS and Windows platforms.
  • End User License Agreement (EULA)

    Last Updated: 21.12.2024

    This End User License Agreement (“Agreement”) is a legal agreement between you (“User” or “Licensee”) and Samolevsky.com (“Licensor”) regarding the use of the Adobe Illustrator scripts (“Software”). By downloading, installing, or using the Software, you agree to be bound by the terms of this Agreement.

    1. Grant of License

    Licensor grants the User a non-exclusive, non-transferable, and revocable license to use the Software in accordance with this Agreement.

    • Free Software: If the Software is provided for free, you may use it for personal or commercial purposes without payment, subject to the restrictions outlined in this Agreement.
    • Paid Software: If the Software is provided for a fee, you may use it only after payment has been made in full.

    2. Usage Rights

    You are permitted to:

    • Install and use the Software on devices you own or control.
    • Use the Software in your personal or commercial projects, subject to compliance with this Agreement.

    3. Restrictions

    You may NOT:

    • Reverse engineer, decompile, or otherwise attempt to discover the source code, underlying ideas, or algorithms of the Software.
    • Reuse, incorporate, or integrate any portion of the Software into any other software, product, or project, except as expressly permitted by the Licensor in writing.
    • Resell, redistribute, or share the Software, whether in its original or modified form, without prior written consent from the Licensor.
    • Claim ownership of the Software or its underlying code.
    • Use the Software in any way that violates applicable laws or regulations.

    4. Ownership

    The Software and all intellectual property rights therein remain the exclusive property of the Licensor. This Agreement does not transfer ownership of the Software or any intellectual property rights to the User.

    5. Disclaimer of Warranties

    THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NONINFRINGEMENT. IN NO EVENT SHALL THE LICENSOR BE LIABLE FOR ANY CLAIM, DAMAGES, OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT, OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

    6. Limitation of Liability

    To the maximum extent permitted by law, Licensor shall not be liable for any damages, including but not limited to direct, indirect, incidental, special, or consequential damages, arising out of or related to the use or inability to use the Software.

    7. Termination

    This Agreement is effective until terminated. Licensor may terminate this Agreement immediately if you breach any term of this Agreement. Upon termination, you must cease all use of the Software and destroy any copies in your possession.

    8. Updates and Support

    Licensor is not obligated to provide updates, support, or maintenance for the Software. However, updates may be provided at the sole discretion of the Licensor.

    9. Governing Law

    This Agreement shall be governed by and construed in accordance with the laws of the State of New York, without regard to its conflict of law principles.

    10. Entire Agreement

    This Agreement constitutes the entire agreement between you and the Licensor concerning the Software and supersedes all prior or contemporaneous understandings regarding such subject matter.

    By using the Software, you acknowledge that you have read this Agreement, understand it, and agree to be bound by its terms.

    For any questions or concerns regarding this Agreement, please contact us at hello@samolevsky.com

Required Software

Adobe Illustrator

Use this text to share information about your brand with your customers. Describe a product, share announcements, or welcome customers to your store.

Adobe Illustrator is a professional vector graphics software developed by Adobe Inc. It is widely used by designers, illustrators, and artists for creating a variety of digital artwork, including logos, icons, illustrations, typography, and complex design layouts. Illustrator is known for its precision and scalability, allowing users to create high-quality graphics that can be resized without losing clarity. Its features include powerful drawing tools, customizable brushes, advanced typography options, and seamless integration with other Adobe Creative Cloud applications. Illustrator is a go-to tool for creative professionals working on projects for print, web, and multimedia platforms.

  • 🅰 Locating the Scripts Folder

    To install a Opacity Randomizer.jsx script in Adobe Illustrator, you need to place it in the correct directory where Illustrator
can recognize it. Follow these steps to locate the Scripts folder:

    1. MacOS:
      Open Finder and navigate to:
      Applications/Adobe Illustrator <Version>/Presets/<Language>/Scripts.
    2. Windows:
      Open File Explorer and navigate to:
      C:\Program Files\Adobe\Adobe Illustrator <Version>\Presets\<Language>\Scripts
    3. Replace <Version> with your Adobe Illustrator version (e.g., 2025).
    4. Replace <Language> with your language folder (e.g., "de_DE" for German, "en_US" for English).

    🅱 Installing the Script

    1. Copy the Script File: Copy the Opacity Randomizer.jsx file to the Scripts folder located in the path above.
    2. On some systems, you may need administrator permissions to modify the Scripts folder.
    3. Restart Adobe IllustratorTo refresh the scripts menu, close and reopen Adobe Illustrator.

    Explore our complete guide to mastering Adobe Illustrator scripts.

    1. Open Adobe Illustrator and ensure a document is active.
    2. Go to the top menu bar and select File > Scripts.
    3. If the script is installed in the Scripts folder, it will appear in the dropdown list.
    4. Click the Opacity Randomizer script to run it.
    5. The Opacity Randomizer script will execute, and any dialog boxes or results will appear based on the script’s functionality.

    ☻ Before running any scripts, it’s strongly advised to save your work — especially when working with complex or large documents.

Got questions?

Need help or have an idea to share? We’d love to hear from you! Whether you have questions, found a bug, have a feature request, or just want to share your feedback, reach out to us—we’re here for you! 

Browse More Scripts

  1. Read more: Random Point Jitter
    Random Point Jitter

    Random Point Jitter

    Random Point Jitter is an Adobe Illustrator script that randomly shifts anchor points and/or Bezier handles of selected paths. This allows for controlled randomness in vector artwork, useful for adding organic imperfections, hand-drawn effects, or artistic distortions.

    Read more
  2. Read more: Adjust Stroke Weight by Percentage
    Adjust Stroke Weight by Percentage

    Adjust Stroke Weight by Percentage

    The Adjust Stroke Weight by Percentage script for Adobe Illustrator allows users to proportionally scale the stroke weight of multiple selected objects. It provides a user-friendly dialog where you can input a percentage or use a slider to increase or decrease stroke widths. Additionally, the script offers an option to apply an average stroke width across all selected objects.
    Read more
  3. Read more: Hue Saturation Lightness
    Hue Saturation Lightness

    Hue Saturation Lightness

    Hue Saturation Lightness is a powerful Adobe Illustrator script designed to give you complete control over the color properties of your selected paths and text objects. With this intuitive dialog window, you can effortlessly adjust the Hue, Saturation, and Lightness of your design elements, offering precise and customizable color transformations.
    Read more