You’ve got a design you’re excited about, but before it can go on a shirt, it needs to meet specific technical requirements. Knowing how to prepare artwork for t-shirt printing makes the difference between a crisp, professional result and a blurry, off-color mess. Whether you’re ordering uniforms for your crew or spirit wear for your school, file preparation is where quality starts, or where it falls apart.
At Dr. Tee’s Design & Screen Printing, we’ve spent over 20 years helping Kansas City businesses and organizations get their artwork print-ready. We see the same issues come through our shop regularly: low-resolution logos pulled from websites, designs saved in the wrong file format, or color choices that don’t translate well to screen printing. Most of these problems are fixable before they ever reach the press, if you know what to look for. That’s exactly why we put this guide together, drawing directly from what we deal with every day in production.
This guide walks you through the core specs: resolution and DPI settings, vector vs. raster files, accepted file types, color separation basics, and how to format everything so your printer can work with it cleanly. By the end, you’ll know exactly how to set up your artwork so it arrives ready to print, no back-and-forth revisions, no delays, no surprises on the final product.
What print shops need before you start
Before you think about how to prepare artwork for t shirt printing, you need to understand what the printer is actually looking for. Print shops don’t just need a picture of your design – they need a file that their production software can process accurately, at the right scale, with the right color information attached. When a file comes in missing any of these details, production stalls while the shop tracks down the information or corrects the artwork, and that delay costs you time.
Baseline file and format requirements
Every screen printing shop starts from the same baseline: your file needs to be print-ready before it enters the queue. That means the artwork is sized to actual print dimensions, the resolution is set correctly for output, and the file format is one the shop can open and color-separate. Most professional print shops accept vector formats like AI, EPS, or PDF, and high-resolution raster files like PSD or TIFF at 300 PPI or higher at actual print size. A JPEG pulled from your website will almost never meet these standards.
If you send a low-resolution file and the shop scales it up to fit the shirt, the printed result will look pixelated and blurry, no matter how sharp the design looks on your screen.
Here is a quick reference for the file types most shops accept:
| File Type | Format | Best Used For |
|---|---|---|
| .AI | Vector | Logos, text, clean line graphics |
| .EPS | Vector | Cross-platform vector artwork |
| Vector or raster | Multi-element designs, text layouts | |
| .PSD | Raster | Photographic or layered designs |
| .TIFF | Raster | High-resolution flat artwork |
Design placement and size information
Your file alone is not enough. You also need to tell the shop exactly where the design goes on the garment and how large it should print. Common print locations include the front chest, full front, left chest, back center, and sleeve. Each location has standard size limits – for example, a full front print on a t-shirt typically runs 10 to 12 inches wide, while a left chest logo sits at 3 to 4 inches wide.
Providing this detail upfront saves the shop from guessing and protects you from a finished product that looks off-center or oversized. Write out your placement notes clearly, either in an email alongside your file or in a short specification document. Include the garment style, size range, print location, and the maximum dimensions you want the design to reach. The more specific your notes are, the faster your order moves through production without any back-and-forth.
Step 1. Set your design size and resolution
Before you touch colors or file formats, get your canvas dimensions right. When you prepare artwork for t shirt printing, your design file needs to be built at the exact size it will print on the garment. If you build it smaller and scale it up later, you lose quality. If you build it larger, you risk distorting proportions when the shop resizes it to fit the print area. Starting at the correct size from the beginning avoids both problems entirely and keeps your artwork consistent through every step of production.
Set your canvas to actual print dimensions
Open your design software and create a new canvas at the size your design will appear on the shirt. Standard print areas vary by garment and placement, so use these common dimensions as your starting point:
| Print Location | Typical Max Width | Typical Max Height |
|---|---|---|
| Full front | 12 inches | 14 inches |
| Left chest | 4 inches | 4 inches |
| Full back | 12 inches | 14 inches |
| Sleeve | 3 inches | 5 inches |
Set your canvas to the widest dimension your design will actually use within those limits. Confirm placement and size with your print shop before you finalize anything, since some shops have slightly different maximums depending on the press setup.
Match your resolution to the output
Resolution determines how sharp your design looks when it hits the fabric. For screen printing, set your file to a minimum of 300 PPI at actual print size. Many shops prefer 300 to 400 PPI for photographic or highly detailed artwork. The key rule here: set your PPI before you start designing, not after. Increasing resolution after the fact in raster programs like Photoshop does not recover detail that was never there to begin with.
Building your file at 300 PPI or higher from the start is the step most people skip, and it causes more reprints than any other mistake.
Step 2. Choose the right file type and export
The file format you save in controls whether your print shop can work with your design cleanly or has to rebuild it from scratch. One of the core steps in how to prepare artwork for t-shirt printing is matching your file format to your design type. Vector files are built from mathematical paths, so they scale to any size without losing quality. Raster files are made from pixels, so they depend entirely on the resolution you set in Step 1. Knowing which category your design falls into determines which format you should export.
When to use vector vs. raster
Vector formats work best for logos, text, and clean graphic designs with solid fills and defined edges. If your design was built in Adobe Illustrator, it’s already vector-based. Raster formats like PSD or TIFF are the right choice for photographic images or designs with gradients and soft shadows. Most screen printing shops prefer vector whenever possible because it separates cleanly into individual ink layers without extra work on their end.
If you’re unsure which format your file is, open it in Illustrator. If you see editable paths and anchor points, it’s vector. If you see a grid of pixels when you zoom in close, it’s raster.
How to export your file for print
When you’re ready to export, match your format to your design type and apply the correct settings from the table below:
| Design Type | Recommended Format | Key Export Settings |
|---|---|---|
| Logo or line art | .AI or .EPS | Outline all fonts, embed all links |
| Multi-element layout | Press-quality preset, embed fonts and images | |
| Photographic or layered | .PSD or .TIFF | 300 DPI minimum, flatten or keep layers |
Outline your fonts before you save. If you skip this step, the print shop needs the exact fonts installed on their system to open your file correctly, and that’s a common source of production delays. For PDF exports, use a press-quality preset and confirm all images are embedded, not linked to an external folder on your computer.
Step 3. Plan colors and separations
Screen printing applies each color as a separate ink layer, so the number of colors in your design directly affects the cost and complexity of your print job. Every color you use requires its own screen, its own ink mix, and its own pass through the press. If you’re asking how to prepare artwork for t shirt printing effectively, color planning is one of the steps that saves you the most money without sacrificing the look of your final product.
Keep your color count intentional
Most standard screen printing setups handle between 1 and 8 colors per design. Staying within that range keeps your costs predictable and your production timeline short. Before you finalize your design, count every unique color in your artwork, including outlines and shadows. If your design uses gradients, talk to your shop about whether they can be converted to halftone dots or simplified into solid fills.
Removing one color from a 6-color design can cut your per-shirt cost noticeably, especially on larger orders.
Here’s a quick cost and complexity guide based on color count:
| Color Count | Complexity | Typical Use Case |
|---|---|---|
| 1-2 colors | Low | Simple logos, text-only designs |
| 3-4 colors | Medium | Business branding, team uniforms |
| 5-6 colors | High | Detailed graphics, multi-element layouts |
| 7-8 colors | Very high | Complex illustrations, photographic effects |
Match your colors to Pantone references
Your monitor displays colors in RGB, but screen printing inks are mixed using Pantone Matching System (PMS) values. Submitting PMS color codes with your artwork tells the shop exactly which ink to mix, eliminating guesswork and ensuring your brand colors print consistently across every garment in your order. If you don’t have PMS codes, provide the hex values from your brand guidelines and ask your shop to match them as closely as possible to an available ink color.
Step 4. Preflight, proof, and deliver files
Once your file is sized, formatted, and color-mapped, one final review round separates a clean delivery from a costly reprint. Preflighting is the process of checking your own artwork against a standardized list of requirements before you submit it to the shop. Many people skip this step when learning how to prepare artwork for t shirt printing, and it’s the most avoidable source of production delays. A few minutes of self-review before you send can save days of back-and-forth.
Run a preflight checklist on your own file
Work through each item below before you package and submit your artwork. Every box you clear is one less revision request coming back from the shop, and catching issues yourself is always faster than waiting for the printer to flag them:
- Canvas is set to actual print dimensions
- Resolution is 300 PPI or higher at full print size
- File format matches your design type (vector for logos, raster for photos)
- All fonts are outlined or embedded
- Colors are labeled with PMS or hex values
- No hidden layers, stray elements, or unresolved clipping masks remain
- Print placement and garment notes are written out in a separate document
Package your files neatly when you’re ready to send. If you’re submitting a layered PSD or an AI file with linked assets, compress everything into a single zip folder before uploading. Loose files sent individually often get separated and create confusion in production.
Approve your proof with a close eye
Your print shop will send you a digital proof before any ink hits a shirt. Check that the placement matches your written notes, the colors align with your PMS references, and the text is complete with no missing characters. Approve only when every element looks exactly right, not when it looks close enough.
A proof approval is your final checkpoint, and once you sign off, the shop moves forward. Reprint costs fall entirely on you.
Ready to print without surprises
You now have everything you need to know about how to prepare artwork for t-shirt printing: correct canvas dimensions, minimum 300 DPI resolution, the right file format for your design type, clean color references, and a preflight checklist to catch problems before they reach the press. Following each of these steps in order keeps your order moving without revisions, reprints, or delays eating into your timeline or budget.
Working through this process yourself saves time on both ends. When your file arrives ready to print, the shop skips the correction cycle entirely and moves straight to production. That means faster turnaround and a final product that matches your original design exactly the way you intended it. If you want to skip the technical setup and work with a team that handles it for you, get a quote and start your order with Dr. Tee’s and we’ll get your artwork print-ready from the start.
