🎯 Automating Vinyl Banner Setup in Adobe Illustrator with ExtendScript | SCRIPT INCLUDED

Designing vinyl banners in Adobe Illustrator is often a repetitive and time-consuming process — especially when you need to apply consistent hems, fold lines, cut lines, and perfectly spaced grommet holes. If you’re in a print shop like us at Bayou Banners & Prints, you know the drill.

To save time and reduce setup errors, we built a custom Adobe Illustrator script that automates the entire layout process — all with the click of a button.

In this post, I’ll walk you through:

• ✅ What the script does
• 💡 How we developed it
• 🧰 Why it’s helpful for print automation
• 🚀 How you can use or customize it

🛠️ What the Script Does

Once you run the script on any Illustrator document (such as a PDF banner file), it:

1. Expands the artboard by 1″ on all sides to add hem allowance.
2. Adds:
   • ✅ Cut line: 1″ outside the original artwork, dashed red.
   • ✅ Fold line: exactly on the original artwork bounds, dashed green.
3. Places grommet holes (solid black dots):
   • Spaced every 24″ (or a custom distance you input)
   • Aligned perfectly along all four edges
   • Skips the corners — grommets won’t appear in corners, but that is due to the fact that we know it’s already going there.
4. Automatically saves the result as a PDF on your Desktop:
   • Named like: (Inserts Date) - Vinyl Banner - (Inserts File Name).pdf

🧠 Why We Created It

Setting up a banner manually involves multiple steps:

• Adjusting the artboard for hems
• Drawing dashed fold lines
• Calculating grommet spacing
• Making sure grommets aren’t too close to corners
• Saving out properly named print files

Doing this 20+ times a day? That’s hours wasted.

Instead, with a script written in Adobe ExtendScript (JavaScript for Illustrator), our designers can process banner files in seconds — with pixel-perfect accuracy and print-ready output every time.

📜 Inside the Script

At its core, the script uses a few powerful concepts:

• app.activeDocument — grabs the currently open file.
• doc.artboards[0].artboardRect — resizes the artboard.
• pathItems.rectangle() — draws fold and cut lines.
• pathItems.ellipse() — adds grommets as black dots.
• doc.saveAs() — automatically exports a PDF.

Here’s a snippet that handles grommet placement while skipping corners:

for (var x = gStartX; x <= gEndX; x += grommetSpacing) {
    var distLeft = x - gStartX;
    var distRight = gEndX - x;
    if (distLeft >= cornerExclude && distRight >= cornerExclude) {
        drawGrommet(x, gStartY); // bottom
        drawGrommet(x, gEndY);   // top
    }
}

💬 Customizing It for Your Shop

Want to add:

• A logo or phone number in the hem?
• Different fold or bleed sizes?
• White-filled or vector grommets?
• Batch processing multiple banners?

All of that can be added with just a few lines of code.

📥 Want the Script?

Here is the basic script ready to start working for you and saving time.

Here’s a link to our Google Drive to get complete access to the JavaScript File.

If you have any ideas on how we can make this better, please email us at Aroundtheprintshop@gmail.com

🔚 Final Thoughts

Automation doesn’t replace designers — it empowers them. By scripting the tedious stuff, we free up more time to focus on creative work, customer service, and business growth.

If you’re in print and working with Illustrator every day, scripting is one of the best-kept secrets to leveling up your workflow.

Need help installing or modifying the script? Let me know — I’m happy to help! 🎨👨‍💻