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What Is Variable Data Printing And When Is It Used for Product Labels

Is your company considering launching a customized marketing campaign to attract a unique audience? Or are you looking to diversify your product varieties with new flavors, scents, or seasonal editions?

Using variable data printing for product labels is a cost effective solution that helps you do this at a large scale. Here’s what to know about the kind of data it can print and when you can use it for product labels.

Understanding Variable Data Printing

In variable data printing, you can change elements of your label, like graphics and text, without changing the equipment. One well known implementation of variable data printing is Coca Cola’s Share-a-Coke campaign with personalized bottles and cans.

The process requires all variations in text and imagery ahead of time. This data is compiled into a database and spreadsheet, and is fed to the label printing software. The digital press pulls text and graphics from the data and prints variations in sequences.

While you can change the text and graphics, all labels in a run should be the same dimensions to be able to use variable label printing.

Take a wellness brand selling essential oils, for example. Each bottle may need a different label based on whether it’s lavender, tea tree, eucalyptus, or peppermint essential oil. With variable data printing, you can print labels with different colors, graphics, and names for each type of essential oil without changing the equipment in a printing press.

Now, take this concept and apply it to other product lines. From craft beer and skincare to artisanal coffee and CBD, the applications are endless.

Types of Variable Data Options

With variable data printing, you can print different types of data.

Barcodes: With variable data printing, each product can have a unique code, improving inventory accuracy and enhancing supply chain efficiency
Serial Numbers: Using this technology for serial numbers allows companies to track products easily, making warranty management and theft prevention more effective
Batch And Lot Numbers: Unique batch and lot numbers improve traceability so companies can ensure swift recalls and quality control in case of safety issues or contamination.
Manufacturing and Expiration Dates: Printing variable manufacturing and expiration dates on the label helps your brand comply with food safety regulations.
Regional Pricing Information: You can customize pricing by region using variable data printing, ensuring that you comply with pricing laws.
Promotional Codes: Printing unique promotional codes help your business track marketing campaigns, boost customer engagement, and plan personalized promotions.
Product Variation: Using variable data printing for product variations streamlines label customization. You can ensure accurate information for each version and reduce errors.
Regulatory Information: You can print regulatory information on products to meet local compliance standards and reduce the risk of penalties and fines.

Applications For Variable Data Printing

Here are some of the most applications for variable data printing across different industries and business models:

Limited Edition Products

If your brand plans on creating limited-edition designs for an upcoming event or season, variable design printing helps you do this quickly. While traditional printing requires large batches to keep costs down, variable data printing allows you to print smaller batches of limited-edition product labels without eating up a big chunk of your budget.

Meeting Regional Regulatory Requirements

For companies operating in the food, pharmaceutical, and electronics industries, regulatory requirements can differ between regions. Because traditional printing creates identical labels in bulk, you can’t accommodate dynamic changes based on different geographical locations. Meanwhile, variable data printing allows you to include different safety and warranty labels based on where the product is going.

Selling In International Markets

Speaking of different regions, expanding to different markets means dealing with language barriers, too. This means printing labels with instructions, food allergy details, and other information in different languages, too. Though English is commonly understood, many regions have a preference for their local language. And customizing labels with each region’s native language is a great way to ensure that your product is well-received by the local public.

SKU Management

If your brand offers different product lines like flavors or scents, variable data printing makes it easier to create multiple variations. That way, you can print labels for multiple variations in smaller orders instead of one large batch.

Promotional Codes

During special promotions where your brand hosts competitions with prizes or offers discounts on complementary products, unique codes or images are printed on the label. With variable data printing, you can implement changes quickly without dealing with the expenses of equipment changeover fees. You’ll be able to track consumer preference and response to your initial batches before deciding to print more.

Spreadsheet with data

Types Of File(s) A Label Printer Needs To Perform Variable Data Printing

Because the variable data printing process differs from traditional printing in more than one way, you can expect to need different file types.

CSV or Database Files: Label printers need CSV or Excel files that contain variable information. This could include the name of a product variety, ingredient information, food safety information, and more.
PDF Files: You can set up PDF files with dynamic fields for variable data printing. The file will have interactive fields that pull data from external sources, like a spreadsheet.
.AI Files: When using label design software like Adobe Illustrator, templates are saved in its proprietary format containing placeholders for different data. Then, the variable data can be derived from a database or spreadsheet to fill in placeholders.

Choose Variable Data Printing For Cost-Effective And Efficient Label Solutions

To sum it up, variable data printing gives brands a seamless way to integrate dynamic data into labels without changing the equipment. From labeling products in different languages to creating new varieties, there are various applications for variable data printing.

If you want to start printing your product labels with variable data printing, contact our team at Blue Label Packaging to get a free quote.

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White File Best Practices: The Importance of White Ink for Labels

Behind every stunning product label is a well-crafted art file. In this guide, we’re diving into everything you need to know about white files and layered ink printing.

Why White Files Are Critical for Labels

What Is a White File?

A white file is a specific layer in your art file that tells the printing press where to lay down white ink on metallic, clear, holographic, or dark substrates to create opacity. This matters because most label printing companies rely on the CMYK color model, and your white file acts like a primer, ensuring those CMYK colors pop.

Imagine it like this: just as a painter primes a canvas so the colors stand out, your white file primes the substrate. Whether you’re going for a full coat that completely covers the substrate or a partial coat that lets some of the material shine through, the white file is key to getting your desired color effect without interference from the substrate.

Methods for Applying White Ink

There are two main ways to apply white ink, and your choice depends on the look you’re going for:

Flood Coats: With a flood coat, you cover the entire surface with white ink. It’s a straightforward approach that requires little extra file prep. Sometimes, using a white substrate might even be a more budget-friendly option. (Heads up: Performance can vary based on your substrate and ink formulation. We recommend doing a test run before you go full scale.)
Spot Applications: Spot applications let you apply white ink only where it’s needed. Your white file tells the prepress team exactly where to add the ink, ensuring that specific design elements stand out—like enhancing a clear label without covering up your container. (Note: Spot applications require precision. Make sure your file settings are dialed in and double-check with your prepress team to ensure everything comes out perfectly.)

Best Practices for White File Creation

File Preparation Techniques

Use Vector Images When Possible: Both Adobe Illustrator and Photoshop can create art files, but Illustrator’s vector-based approach gives you that extra precision. Vectors keep your layers crisp and reduce the chance of unwanted artifacts like a white fringe.
Layering—Keep White Files Above Your Art Layers: The white ink gets printed first, setting the stage for your CMYK colors. Keeping the white file on top ensures it shows up clearly on proofs and guides the printing process accurately.
(Example: If you’re designing a label with a matte background and a metallic information box, position the white file for the lettering above the box layer. This prevents any overlap issues or lost details. Remember, it’s always a good idea to check your printer’s guidelines since layer handling can differ slightly between machines.)
Clear, Consistent Terminology: Name your layers with specific labels like “white ink” or “50 percent metallic” rather than vague names. This helps cut down on back-and-forth with your prepress team and ensures everyone’s on the same page.
Simplify Barcodes: While it might be tempting to experiment with creative barcode designs, sticking with a simple approach (black bars on a white background) is usually best for readability and scanner accuracy.

A white ink layers setup for a label.

White File Preparation Checklist

Here’s a quick checklist to help you nail your file setup:

Use vector-based files (e.g., Adobe Illustrator) for clarity.
Place white file layers above all CMYK layers.
Name layers with clear, descriptive terms (e.g., “white ink – 100%”).
Test the file layout with sample proofs before full production.
Chat with your prepress team to confirm proper layering and settings.

A label with a metallic substrate made with white file best practices.

Troubleshooting & Advanced Workflow Techniques

Even with the best practices in place, issues can occur. Here’s our step-by-step process to help you troubleshoot and fine-tune your workflow.

White File Workflow: Step-by-Step Process

Initial File Setup:
- Create your art file using vector software.
- Define each layer with clear, descriptive names.
Layer Arrangement:
- Position the white file layer above all CMYK layers.
- Use grouping and locking features to avoid accidental changes.
Proofing and Testing:
- Request sample proofs to check for consistency.
- Adjust layer settings based on feedback from your prepress team.
Final Adjustments:
- Make adjustments based on your sample tests.
- Finalize your file settings before sending them to production.

Set Up Your Product Labels for Success

A little extra preparation can make a huge difference in your final labels. If you’re ready to see your labels shine, contact us today for a free consultation, and we’ll show you how our approach can streamline your label production process.

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How Labels are Made: Digital Printing from Design to Finished Product

Ever wondered what it takes to turn your label design into a finished product? We’re here to walk you through the digital label printing process—from getting a quote to the final shipment. We’ll address what matters most to you: getting your labels fast, controlling costs, and getting top quality labels.

The Label Printing Process

We’ve broken down the process into four clear steps.

Step 1: Label Quotes, Design, and Prepress

Before printing even begins, we start by gathering the essential details—like your label size, material, and order quantity—to give you a quote. Once you approve the quote, we ask for your artwork and send you a digital proof for your final go-ahead.

With your approval, your artwork moves to our prepress team—the last checkpoint before printing. This is where we make sure your file is ready for production.

In this stage, we check every detail, from fonts to colors and images. We’ll make sure your label is ready for production—for example, if your label includes a barcode, we’ll do a quick test print to confirm it scans perfectly, so you don’t run into delays later.

A prepress expert examinging barcodes on a product label.

Looking for Custom Labels?

We put our all into every custom label we make. No exceptions. And with no minimum order quantities and a 5-day turnaround for digital label printing, we take pride in helping you perfect your first impression.

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Step 2: Printing

Once your file is ready, it heads to our state-of-the-art HP Indigo digital presses. This approach skips the expensive plate setup you have with traditional printing, saving you money and speeding up production.

According to studies from Smithers, under optimal conditions, digital printing can cut lead times by up to 40%—especially for short-run orders.

After printing, the label material comes in long rolls, ready for the next step.

Product labels going through a finishing machine.

Step 3: Finishing, Die Cutting, and Quality Assurance

After printing, your labels move on to the finishing stage. Our finishing technology can add a range of treatments—like embossing (which creates a raised, textured effect), hot foil stamping (for a shiny, metallic look), laminates (protective coatings that extend label life), and UV varnishes (clear, durable coatings cured with ultraviolet light for extra gloss and protection). These enhancements not only impact the look of your labels but also make them more durable.

Your labels may come in a standard size, or they may be die cut. This is where we use a custom metal blade to cut your labels out of a large printed roll. Die cutting can minimize waste, cut costs, and give your label a unique shape to fit your container.

Product labels being rewound to exact counts.

Step 4: Winding, Packaging, and Shipping

In the final stage, we re-roll your labels into the right quantities. Since the labels come off the finishing machines in huge rolls, our rewind machines re-roll them into sizes that work perfectly with your applicators (the machines or processes that stick your labels on your product).

After one last quality check by our packaging team, your labels are carefully packed and shipped.

How to Make the Right Digital Label Printing Choices

Understanding the digital label printing process can help you make the best choices for your products and your operation. Here’s what to keep in mind:

Costs

As we mentioned earlier, digital printing eliminates expensive plate setups and reduces turnaround times—sometimes by as much as 40% under the right conditions. This means lower production costs and a faster path to seeing returns on your investment.

Picking the Right Label Printing Partner

When evaluating label printers, think about a few key things:

What are their turnaround times?
How do they handle quality control?
How well do they integrate digital workflows?
Do they offer post-production support?

Eco-Friendly Label Printing Considerations

Eco-friendly practices are a big deal nowadays, but there’s not a “one size fits all” approach. If you’re considering the environmental impact of your labels, look for vendors who:

Offer sustainable materials
Use processes that cut down on waste
Embrace green initiatives without skimping on quality

Simplify the Label Printing Process for Your Business

At Blue Label, we’re all about guiding you through every step—from design to delivery. Our process is designed to give you high-quality labels that meet your needs, all while keeping costs in check and production running smoothly. We’re here to help you make informed decisions and get great results.

Ready to get started? Contact us today for a free consultation or quote.

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Barcode Basics: What to Know About Barcodes and UPCs for Product Labels

⚞ The Highlights:

What is a UPC barcode? A UPC (Universal Product Code) is a 12-digit barcode found on retail products. Stores scan it to identify and track items at checkout.
UPC vs. EAN vs. QR Code vs. SKU: a UPC is the 12-digit U.S./Canadian barcode standard. An EAN is the 13-digit international equivalent. A QR code is a 2D barcode for marketing or consumer-facing info. A SKU isn’t a barcode at all. It’s an internal product ID set by the retailer or brand.
Sizing: a UPC barcode at 100% magnification is 1.469″ wide by 1.02″ tall. You can scale between 80% and 200% of this. Always include at least a 0.25″ quiet zone on each side.
To get a UPC: register with GS1 (the global barcode standards organization), get a unique number assigned, and use the resulting barcode on your packaging.

A barcode and a UPC may not be the most attractive part of your product label, but they’re the part that makes everything else work. A clean, properly sized barcode means the product scans at checkout, gets tracked through the supply chain, and shows up correctly in retail inventory systems. A bad barcode means lost sales, frustrated customers, and chargebacks from retailers. Below is what you need to know to get yours right the first time.

UPC vs. EAN vs. QR Code vs. SKU vs. GS1 DataBar

The terms “barcode,” “UPC,” and “SKU” get used interchangeably, but they’re different things. Here’s how they actually compare.

Type	What it is	Format	Standardized by	Common use
UPC	1D linear barcode used at retail in the U.S. and Canada	12 digits	GS1 (U.S. / Canada)	Retail point-of-sale scanning
EAN	1D linear barcode used at retail internationally	13 digits	GS1 (international)	Retail point-of-sale scanning outside the U.S.
QR Code	2D barcode that holds more data than a 1D barcode	Variable; can encode URLs, text, contact info	ISO standard	Marketing links, consumer information, traceability
SKU	Not a barcode. An internal product identifier set by the retailer or brand	Variable, defined by the company using it	Each retailer or brand	Internal inventory and stock management
GS1 DataBar	Compact 1D barcode that holds more data than a UPC	Variable	GS1	Small items, fresh food, healthcare products where space is limited

The short version: a UPC (or EAN internationally) is what retailers scan at checkout. A SKU is an internal product code. A QR code is a 2D barcode that’s usually supplemental, not a replacement for a UPC. Most retail products need a UPC; only some products need GS1 DataBar or a QR code.

What goes into a barcode and UPC?

A barcode and a UPC are two parts of the same thing. The UPC (Universal Product Code) is a 12-digit number assigned to a product. The barcode is the machine-readable version of that number. Each part of the 12-digit code does a different job:

First six digits. The manufacturer identification number
Next five digits. The item number, specific to each product
Last digit. The check digit, a single number that confirms the integrity of the barcode

A product label barcode with an example UPC.

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Manufacturers apply for UPCs from GS1 (the Uniform Code Council). After approval, the manufacturer pays an annual fee to participate in the UPC system and receives a unique manufacturer identification number, which is used for all of that company’s barcodes. The item number is specific to each product and is assigned by the manufacturer (avoid duplicating numbers across SKUs). The check digit is calculated from the rest of the number to confirm the barcode hasn’t been corrupted in transmission. You can determine the check digit for any product with GS1’s check digit calculator.

Other types of barcodes

While UPC and EAN barcodes are the most common, GS1 maintains several other barcode types for different business needs:

GS1 DataBar: A family of compact barcodes designed for items that don’t have room for a full UPC. They can carry product identification, batch numbers, and expiration dates, which makes them a fit for fresh foods and healthcare products where space is at a premium but data needs are high.
GS1-128 and ITF-14: GS1-128 is a high-capacity barcode that uses application identifiers to encode multiple data elements in one symbol. Useful for complex supply chain needs. ITF-14 is designed specifically to encode a Global Trade Item Number (GTIN) on corrugated materials, which makes it the standard for tracking trade items in bulk through distribution.
Two-dimensional (2D) barcodes: Think of 2D barcodes as the next-generation form of the typical 1D barcodes you see on most product packaging. The most common 2D barcode is the QR code. 2D barcodes encode data both horizontally and vertically, which lets them hold a lot more information in less space.

Different types of product barcodes

Should you use QR codes for product labeling?

QR codes don’t replace a UPC at retail, but they pair well with it. A study published in Sustainability evaluated QR code use on food labels and found:

Nearly 39% of respondents wanted QR codes used more broadly in the future
67% of respondents agreed that QR codes make life easier

The study concluded that QR codes “included in product packaging, on labels, and in commercial spaces (shelves, showcases, posters, etc.) are considered particularly effective in providing timely product and brand information given their capacity to reach consumers when and where they are ready to purchase with relevant, targeted, and interactive information.”

The practical use cases we see most: linking to product information pages, ingredient sourcing or sustainability stories, video tutorials, loyalty program signups, and traceability for fresh or regulated products.

How to make sure your barcode and UPC actually work

Barcodes are graded on a scale from A to F. Higher grades scan more reliably across more scanners. The factors that determine the grade are mostly within your control if you set up the barcode correctly from the start.

Respect the quiet zone

Every barcode needs a “quiet zone”. A clear margin around the barcode with no text, graphics, or other printed elements. Without a proper quiet zone, a scanner can pick up surrounding artwork and misread the barcode, which causes errors at checkout.

The quiet zone should be the larger of these two measurements:

10 times the width of the narrowest bar in the barcode
One-eighth of an inch (0.125″)

An example barcode with the approapriate amount of quiet space.

Use the right colors for your barcode

While colorful labels can help your product stand out, the barcode itself needs a simple color scheme to scan reliably:

Bars: use a single color, ideally black or another dark color. Avoid warm colors like red or brown. They don’t read well on the red laser scanners most retailers still use.
Background: the barcode background is usually unprinted, so it takes on the color of the label or packaging. If the label color is dark or warm, print a light background (typically white) for the barcode area and quiet zone.

Pay attention to barcode size

Barcodes come in custom sizes the same way labels do. Yours needs to be big enough to scan reliably, but not so big that it crowds the rest of the label.

The standard UPC barcode is 1.469″ wide by 1.02″ tall at 100% magnification. You can scale up or down within these limits:

Minimum: 1.175″ wide by 0.816″ tall (about 80% of standard)
Maximum: 2.938″ wide by 2.04″ tall (about 200% of standard)

A visualization of the minimum and maximum barcode sizes.

Design the barcode at the size you actually need from the start. Don’t generate a standard-size barcode and then resize it manually. That can cause scanning issues. If you need a different size, generate a fresh barcode at the new dimension.

Place the barcode where scanners can find it

For products that scan at retail checkout, place the barcode in the lower-right corner of the back panel of the package. Keep it away from edges and creases, and leave enough white space around it so the scanner has a clean read.

The printing surface for the barcode also needs to be relatively flat. Bumps, creases, or curved surfaces (like the seam of a shrink sleeve) can cause scan errors. If you’re printing on a curved container, make sure the barcode sits in a flat zone, not where the curve is steepest.

GS1 has published Guidelines for Bar Code Symbol Placement if you want the full reference.

Once you have your UPC ready, request a free sample pack to see exactly how your barcode will scan and sit on our label stock before you commit to a print run.

Send your barcodes to the printer in the right format

Once your label design has the barcode in place, you’ll need to send the artwork along with the barcode files to your printer. In addition to the label artwork files, deliver the barcode in one of these forms:

An image file of the barcode you received from the provider
An Excel document with a list of UPC numbers
A PDF or EPS of the barcodes

A label printing expert testing a barcode label.

It pays to work with a label printer that has solid barcode-handling capabilities. A barcode that fails to scan can mean lost sales, frustration on both sides of the counter, and chargebacks from retailers if their systems can’t read your products. A good label printer will choose materials and printing techniques that avoid smudges, abrasions, and low-resolution issues that hurt scan quality.

Worth knowing: Thinking of using printable label sheets on a home inkjet or laser printer? Be careful. Home printers often can’t hit the resolution barcodes need, and the paper labels designed for home printers usually aren’t durable enough for most product environments (no water resistance, low tear strength, prone to smudging). Fine for short-run testing; risky for production.

How to get a barcode

If you’re starting from scratch, the place to start is the GS1 website.

In the U.S., you can either get a single barcode (a GS1 US GTIN) or register a block of multiple barcodes (a GS1 Company Prefix). GS1 has a helpful barcode estimator to figure out exactly how many barcodes. And what kind. You’ll need.

The process is straightforward:

Choose either a GS1 US GTIN (single product) or a GS1 Company Prefix (multiple products)
Enter your contact information
Pay (price varies depending on quantity and barcode type)

One thing worth knowing: there are third-party resellers offering “discount” UPCs. Most major retailers (Amazon, Walmart, Target, Kroger) require GS1-issued barcodes specifically. Saving a few dollars on a non-GS1 UPC can disqualify your products from those retailers, so go directly through GS1.

Frequently asked questions

What’s the difference between a UPC and a barcode?

A UPC is the 12-digit Universal Product Code assigned to a product. The barcode is the machine-readable version of that number. The printed pattern of bars and spaces a scanner reads. They’re two parts of the same identification system: the UPC is the number, the barcode is the visual representation.

What’s the difference between a UPC and an EAN?

A UPC is the 12-digit barcode standard used at retail in the U.S. and Canada. An EAN (European Article Number, now called International Article Number) is the 13-digit equivalent used internationally. Most modern retail scanners read both. If you sell in both U.S. and international markets, you may need both, depending on which markets your retailers serve.

What’s the difference between a UPC and a SKU?

A UPC is a globally unique 12-digit barcode standardized by GS1, used at retail point-of-sale and recognized across companies. A SKU (Stock Keeping Unit) is an internal product identifier set by a retailer or brand for their own inventory tracking. SKUs aren’t standardized. Every company defines its own format. A product can have a UPC and one or more SKUs at different retailers.

Do I need a UPC to sell on Amazon?

In most cases, yes. And Amazon specifically requires GS1-issued UPCs (not third-party resellers). Some product categories have GTIN exemptions, but for most retail consumer products, you’ll need a GS1 UPC. Walmart, Target, Kroger, and other major retailers have similar requirements. Going directly through GS1 is the safe path.

How much does it cost to get a UPC?

Cost depends on whether you need a single barcode or a block of barcodes. GS1 offers single GTINs for one-product situations, and GS1 Company Prefixes for businesses needing multiple barcodes. Prices include both an initial fee and an annual renewal fee, and they vary based on the number of barcodes you register. Check the GS1 US site for current pricing.

What size does my barcode need to be?

A standard UPC barcode is 1.469 inches wide by 1.02 inches tall at 100% magnification. You can scale between 80% and 200% of that range. Minimum around 1.175″ x 0.816″, maximum around 2.938″ x 2.04″. Always include a quiet zone of at least 0.25 inch on each side. Generate the barcode at the actual size you need; don’t generate at one size and resize later, which can cause scanning issues.

Where should I place the barcode on my product label?

For most retail products, place the barcode in the lower-right corner of the back panel. Keep it away from edges, creases, and curved or textured surfaces. The barcode should sit on a relatively flat printing surface, with enough white space around it (the quiet zone) for the scanner to get a clean read. GS1 publishes detailed placement guidelines for specific product types and packaging.

Should I use a QR code on my product label?

QR codes don’t replace a UPC, but they pair well with one. They’re useful for linking to product information, ingredient sourcing or sustainability content, video tutorials, loyalty signups, or traceability for regulated products. Research shows nearly 67% of consumers find QR codes make their experience easier. The catch: a QR code takes up label real estate, so you need a clear reason for including it before you commit space to one.

Get your barcode-ready labels right the first time

A barcode and UPC are one of many pieces in a successful product label. Once your design is dialed in, finding the right printer is the next step.

At Blue Label, we test every barcode before a full run. We print example labels, scan them with retail-grade scanners, and grade the result. We confirm that your UPC matches the bars. If anything looks off, we flag it before we print the production run, so you can fix it before it becomes a chargeback.

Ready to put it together? Take a look at our product label options, or request a sample pack to see how your barcode will sit on real label stock. Get in touch when you’re ready to talk through a project.

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Advantages and Uses of Variable Printing for Labels

You don’t need to personally meet your customers to give them a personalized product experience. Thanks to digital printing technology, your product label can do that for you.

Variable data printing allows businesses to customize and personalize their labels through digital printing. Back in 2013, Coca-Cola started a personalized brand campaign in which it printed “nearly 800 million personalized bottle labels for the campaign, using more than 10,000 names, in more than 10 languages and five alphabets.” In 2016, Diet Coke launched the “It’s Mine” campaign, in which every single 12-ounce glass bottle label featured a different design.

While Coca-Cola had a lot of success with their campaigns, you don’t need to be a massive company to leverage the benefits of variable data printing. All it takes are a few ideas and a digital printing company with the technology to make it happen.

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