When submitting artwork for stickers and labels, it’s important to understand the difference between flat files and layered files and how each impacts the proofing and production process. While both file types serve a purpose, a layered file is generally more useful for proofing because it allows for easier adjustments and modifications when preparing artwork for print.

What is a Flat File?

A flat file is a digital artwork file where all elements are merged into a single layer. These files are typically exported in formats like:

• JPEG (.jpg/.jpeg)
• PNG (.png)
• TIFF (.tiff)
• Flattened PDF (.pdf without layers)

Characteristics of a Flat File:

• Smaller file size – Easier to share and preview
• Good for display – Works well for mockups and preserving the artwork's appearance, prevents dropout of art elements during proofing
• Limited editability – Individual design elements (text, images, cut lines, backgrounds) cannot be adjusted
• Not ideal for proofing – Difficult to make necessary print adjustments if necessary

What is a Layered File?

A layered file contains multiple separate components within the same document. Each design element—such as text, images, backgrounds, cut lines, and white layers—is kept on its own layer, allowing for precise adjustments. Common layered file formats include:

• Adobe Illustrator (.ai)
• Photoshop (.psd)
• Editable PDF (.pdf with layers intact)
• EPS (.eps) with vector elements

Characteristics of a Layered File:

• More editable – Individual elements can be moved, resized, or adjusted
• Better for proofing – Easier to apply necessary pre-press adjustments
• Supports production requirements – White layers, cut lines, and bleed can be modified as needed
• Larger file size – Can be more complex to share and manage
• May require specific software – Best viewed in Illustrator, Photoshop, or another vector-editing program
• Can have dropout of art elements if file is too detailed or intricate

Which is More Useful for Proofing?

A layered file is significantly more useful for proofing stickers and labels because it allows for adjustments such as:

• Correcting missing or incorrect bleed
• Tweaking or adding cut lines
• Adjusting white layers for special materials
• Resizing or repositioning customer artwork to fit production requirements
• Fixing minor errors without requesting a new file from the customer

A flat file, on the other hand, limits the ability to make these adjustments and may result in additional back-and-forth, delaying production.

For the most efficient proofing and production process, customers should provide layered files whenever possible. While flat files can be used for final approvals or reference, a layered file ensures that necessary modifications can be made to meet print specifications without delays or quality issues.

Best Practices:

• Submit Adobe Illustrator (.ai), Adobe Photoshop (.psd) or layered PDF files when possible
• Include cut lines and white layers as separate elements
• Remove cutlines from your artwork if you are submitting a flat file
• Ensure text is outlined or include font files for accuracy
• If submitting a flat file, ensure it is high resolution and has proper bleed

By following these guidelines, the proofing and printing process will be smoother, ensuring high-quality stickers and labels with faster turnaround times.

Have your layered file ready and want to start your order?

Additional Resources:

• How to Use Canva For Sticker and Label Artwork
• How to setup the Perfect Art File
• What File Types are Best for Stickers and Labels?