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Artwork & Design

How to Prepare Print-Ready Artwork: File Formats, Resolution & Color Modes

April 2025
9 min read
By Harborside Print Co.

The number one cause of production delays and disappointing results isn't equipment or inks or the printer's skill level. It's artwork. Specifically: artwork that looks fine on a screen but was never prepared for physical printing — blurry low-resolution files, RGB color mode, fonts that weren't outlined, rasterized logos saved as JPGs a dozen times until the original quality is unrecoverable.

We've seen all of it. This guide will walk you through exactly what we need, why it matters, and what to do in the most common situations — including when you don't have the original artwork file.

The Fundamental Difference: Screen vs. Print

Computer monitors display images using light. They can display millions of colors at relatively low resolution and still look sharp — because pixels on a screen are tiny and the eye compensates. Printing works by applying physical ink to physical fabric, which is an entirely different process with different requirements. What looks perfect on your laptop at 72 PPI will often print blurry, soft-edged, and color-shifted if the file wasn't prepared specifically for print.

There are two core requirements for print-ready artwork: sufficient resolution and the correct color mode. Everything else builds on these two foundations.

Resolution: What It Means and Why It Matters

Resolution in print is measured in PPI (pixels per inch) or DPI (dots per inch) — they're used interchangeably in most contexts. Screen resolution is typically 72–96 PPI. Print resolution needs to be at least 300 PPI at the actual print size. That second part — at the actual print size — is critical and where most people go wrong.

An image that's 300 PPI at 2 inches wide is only 150 PPI if you scale it to 4 inches wide. Scaling a raster image up reduces its effective resolution proportionally. This is why a logo that looks sharp on a business card can print blurry on a shirt — not because anything changed with the file, but because the print size is larger than the file was designed for.

The quick test:

Open your image in any photo editor. Look at the file dimensions in pixels and the current DPI setting. Divide the pixel width by 300 — the result is the maximum print width in inches where you'll get acceptable results. Example: a 1200px wide image at 300 DPI prints cleanly at up to 4 inches wide. At 10 inches wide, that same image is effectively only 120 DPI — which will print visibly soft.

Vector files don't have this problemSVG, AI, and EPS files are mathematical descriptions of shapes and lines — they have no fixed resolution and can be scaled to any size without any quality loss. A vector logo designed at 1 inch wide will print identically at 12 inches wide. If you have access to a vector version of your artwork, always use it.

File Formats Explained

Vector formats (preferred for logos and text):

Raster formats (acceptable with conditions):

Color Mode: RGB vs. CMYK

Monitors use RGB (Red, Green, Blue) — three colored lights combined to create millions of colors. Print uses CMYK (Cyan, Magenta, Yellow, Black) — four inks layered to approximate colors. The problem: some colors that exist in RGB simply can't be reproduced in CMYK or with screen print inks. Neon colors, very bright blues and greens, and certain purples are particularly common culprits.

If your artwork was designed in RGB and you're expecting an exact color match, you may be disappointed. We convert artwork to the appropriate color space for production, but some colors shift in the process. The safest way to ensure color accuracy is to provide your artwork in CMYK or, even better, provide Pantone color references (PMS codes) for any colors where exact matching is critical.

For screen printing specifically:

Each color in your design is printed with a separate ink, mixed to match a specific Pantone or custom color. If color accuracy is critical — your brand has a very specific red, or the navy has to match your existing uniform — tell us the Pantone code. We'll mix to match it.

For DTF specifically:

DTF prints in CMYK just like inkjet photo printing. Colors are generally vibrant and accurate but can't achieve the ink-specific color matching of screen printing. For photographic and gradient artwork, DTF color reproduction is excellent. For critical Pantone matching, screen printing is more reliable.

Exporting from Common Tools

Adobe Illustrator:

Canva:

Photoshop:

What to Do When You Don't Have the Original File

This is extremely common — especially with older logos, inherited branding, or artwork that was only ever used digitally. Options in order of preference:

Send us what you haveDon't wait until you have the 'perfect' file to submit an order. Send us what you have and we'll tell you immediately whether it works, what adjustments are needed, or what it would cost to fix. We'd rather identify an artwork issue during proof review than have you delay ordering because you're not sure if your file is good enough.

Quick Reference: What Makes a Print-Ready File

Ready to get your artwork into production?

Submit your order form and attach your best available file. We'll review it before anything gets printed and let you know if adjustments are needed.

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