How to Prepare Artwork for Custom T-Shirt Printing: Screen Printing, DTF & DTG Guide

A great custom T-shirt starts long before the shirt reaches a printing machine. It starts with the artwork file.

You can choose a premium garment, a reliable printing method, and a skilled production team, but a poorly prepared file can still create avoidable problems: soft edges, missing fonts, unexpected colors, pixelated graphics, incorrect sizing, or extra production time spent rebuilding artwork.

For companies, events, communities, clothing brands, bands, and creators, preparing artwork correctly also makes quotation and production much easier. Your printer can understand the design faster, recommend the right decoration method, and reduce unnecessary back-and-forth before production begins.

This guide explains how to prepare artwork for custom T-shirt printing, with practical considerations for screen printing, DTF, and DTG.

Why Print-Ready Artwork Matters

The artwork on your computer screen is not automatically production-ready. Digital screens display images using pixels and light, while apparel decoration involves ink, film, mesh, heat, fabric, and physical dimensions.

A production-ready file gives the printing team enough information to reproduce your design at the intended size and quality. It should clearly communicate the artwork, colors, placement, and dimensions without requiring guesswork.

Good artwork preparation can help prevent common issues such as pixelation, incorrect proportions, missing design elements, unwanted backgrounds, font substitutions, and inconsistent placement.

Start With the Right File Format

The best file format depends on the artwork and printing method, but vector files are usually the safest starting point for logos, typography, icons, and flat illustrations.

Common useful formats include AI, EPS, PDF, SVG, PSD, and high-resolution PNG. Vector artwork is particularly valuable because it can be enlarged or reduced without losing sharpness. Raster artwork such as photographs and painted illustrations can also work well, but resolution becomes important.

If you only have a JPG downloaded from WhatsApp, Instagram, or a website, do not assume it is ready for printing. Those files are often compressed and may be much smaller than the final print size.

Use High-Resolution Raster Artwork

For raster artwork, a common production target is approximately 300 pixels per inch at the intended print dimensions. The important phrase is at the intended print dimensions.

A small 1000-pixel image may look sharp on a phone screen but become visibly soft when enlarged across the back of a T-shirt. Simply changing a low-resolution file to “300 DPI” does not magically create missing image detail.

Whenever possible, prepare raster artwork at or near the final physical print size. If you are unsure, send the original highest-quality file instead of repeatedly exporting or forwarding compressed copies.

Set the Intended Print Size

“Print this logo on the front” can mean many different things. A small left-chest mark may be 8–10 cm wide, while a full front graphic can be several times larger.

Specify the intended dimensions whenever possible. For example: left chest 9 cm wide, front center 28 cm wide, or back print 30 cm wide.

Also remember that one print size does not always look identical across every garment size. A graphic that feels large on an S shirt may appear relatively smaller on a 3XL. For orders with a wide size range, discuss whether one standard artwork size or multiple print sizes are appropriate.

Convert or Package Your Fonts

Typography problems are surprisingly common. If your design uses a font that the production computer does not have, the software may replace it with another font and change the design.

For final vector artwork, convert text to outlines or curves before sending the production file. Keep a separate editable master file with live text for your own archive.

If the printer specifically needs editable text, package or provide the font files where licensing allows it.

Remove Unwanted Backgrounds

When using PNG artwork for DTF or DTG, check whether the background is truly transparent. A white rectangle around a logo can become part of the printed design if the file contains an actual white background.

Zoom in around the artwork edges and inspect small details. Transparent backgrounds, clean masks, and intentional edges make production preparation much easier.

Think About Color Before Production

Colors can look different between a phone, laptop, printed proof, transfer film, ink, and fabric. Garment color also influences the final visual result.

If a specific corporate or brand color is important, communicate the reference clearly. Pantone references can be useful for certain screen-printing workflows, while digital methods such as DTF and DTG use a different color-production process.

Do not rely only on how a color looks on one screen. For critical brand applications, discuss color expectations with the production team before the full run.

How to Prepare Artwork for Screen Printing

Screen printing is especially strong for bold graphics, solid colors, repeat production, and many medium-to-large quantity orders. Because individual colors may require separate production preparation, artwork structure matters.

Vector artwork is ideal for many screen-printed logos and illustrations. Keep shapes clean, avoid unnecessary hidden objects, and make sure the design can be separated into the intended print colors.

Very fine lines, extremely tiny text, subtle transparency, and complex gradients may require adjustment depending on the artwork, ink, mesh, garment, and desired finish.

Useful screen-printing artwork checklist

• Provide vector artwork when possible.
• Define the intended print colors clearly.
• Convert final typography to outlines.
• Remove hidden or accidental objects.
• Specify the final print dimensions.
• Identify front, back, sleeve, or other print locations.
• Ask the printer to review very fine lines and small details.

How to Prepare Artwork for DTF Printing

DTF is useful for detailed, full-color artwork and flexible production quantities. It can reproduce gradients, illustrations, and multiple colors without the same color-by-color setup used in traditional screen printing.

For DTF, high-quality transparent PNG files can be practical for raster artwork, while vector files remain excellent when available. The artwork should be prepared at the intended output size and should have clean edges.

Be careful with extremely tiny isolated details. A design may technically exist in the file but still be impractical as a physical transfer if elements become too small or fragile.

Useful DTF artwork checklist

• Use high-resolution artwork at final print size.
• Use a transparent background where appropriate.
• Check small floating details and thin lines.
• Keep edges clean and intentional.
• Specify exact print dimensions and placement.
• Send the original file rather than a screenshot.

How to Prepare Artwork for DTG Printing

DTG prints digital artwork directly onto a garment and can be a strong choice for detailed graphics, illustrations, and selected small-batch custom T-shirt projects.

High-resolution raster artwork is important. Transparent PNG or layered source files can be useful depending on the design. The artwork should be large enough for the intended print size, and the relationship between artwork colors and garment color should be considered.

Soft transparency, distressed textures, photographs, and complex artwork can be possible, but the final appearance will still depend on garment material, pretreatment, ink, and production settings.

Do Not Send Only a Mockup

A mockup is useful because it shows how you want the final product to look, but it should not replace the production artwork.

Ideally, send both. The production file provides the printable artwork, while the mockup communicates placement and visual intention.

For example, a package might contain front-logo.ai, back-artwork.png, and tshirt-mockup.jpg. This is much clearer than sending one flattened image of a T-shirt with graphics already placed on it.

Include a Placement Guide

Placement is part of the design. “Center chest” and “left chest” are not enough when a specific visual result matters.

A simple placement guide can show the approximate distance from the collar, artwork width, alignment, and relationship to seams or pockets. For sleeves, pockets, jerseys, or unusual placements, reference images can be especially helpful.

Organize Multiple Designs and Sizes Clearly

For events, communities, sports teams, and corporate projects, production files can quickly become confusing. You may have several shirt colors, artwork variations, names, numbers, departments, or sponsor logos.

Use clear file names and a simple order sheet. Avoid names such as final-final-new2-revised.png. A structure such as Black-Shirt_Back_30cm.ai is much easier to understand.

For personalized orders, use a spreadsheet that matches names, numbers, garment sizes, and quantities. Clear data reduces production risk.

Common Artwork Mistakes to Avoid

Several problems appear repeatedly in custom apparel production. These include sending screenshots instead of source files, using tiny internet images, forgetting to remove backgrounds, leaving fonts editable without providing them, not specifying dimensions, and approving a mockup without checking spelling.

Another common mistake is designing without considering the printing method. A graphic created for a digital screen may need adjustments before it becomes practical for screen printing or transfer production.

What Should You Send When Requesting a Quote?

A useful quotation request includes more than the artwork. Send the product type, garment color, quantity, size breakdown if available, printing method if already decided, print positions, artwork files, deadline, and delivery location.

If you do not know which printing method to choose, that is fine. A production partner can recommend a method after reviewing the design and project requirements.

Artwork Preparation for Corporate Merchandise

Corporate projects often involve brand guidelines, multiple logos, approval chains, and fixed deadlines. Provide the latest official logo files and brand-color references instead of recreating logos from screenshots or presentation slides.

If different departments need different artwork, label every variation clearly. It is also useful to identify who has final artwork approval before production begins.

Artwork Preparation for Clothing Brands

Clothing brands should maintain a clean artwork archive from the beginning. Keep master editable files, production exports, mockups, color references, garment specifications, and previous production notes.

This makes reorders easier and helps maintain consistency across collections. It also allows the brand to use different decoration methods—such as screen printing, DTF, DTG, or embroidery—without rebuilding assets every time.

Frequently Asked Questions

What is the best file format for T-shirt printing?

There is no single format for every job. Vector AI, EPS, PDF, or SVG files are excellent for logos and flat graphics, while high-resolution PNG or PSD files can work well for raster artwork. The printing method and design determine the best option.

Is 300 DPI always required?

For raster artwork, approximately 300 PPI at final print size is a useful target for many applications. Vector artwork does not depend on pixel resolution in the same way.

Can JAKTEES print from a JPG?

Potentially, if the file quality and dimensions are sufficient. However, a compressed or low-resolution JPG may need artwork preparation or rebuilding before production.

Should I use RGB or CMYK?

The correct workflow depends on the decoration method and production setup. Do not convert files repeatedly just for the sake of changing color mode. Send the best original artwork and communicate any critical brand-color references.

Can JAKTEES help fix my artwork?

JAKTEES can review artwork and advise what needs to be prepared for production. The amount of artwork adjustment required depends on the original file and the intended printing method.

Can the same artwork be used for screen printing, DTF, and DTG?

The same design concept can often be used, but production files may need different preparation for each method. Screen printing may require color separation, while DTF and DTG can accommodate different digital artwork characteristics.

Ready to Print Your Design?

Good printing starts with the right combination of artwork, garment, decoration method, quantity, and production planning. If your file is not production-ready yet, do not worry—send the best version you have together with your project details.

JAKTEES can review your custom apparel project and help recommend a practical production approach for screen printing, DTF, DTG, embroidery, garment production, and custom merchandise.

Send JAKTEES your artwork, product type, quantity, deadline, and delivery location via WhatsApp at +62 811-9698-686.

JAKTEES — Jakarta T-Shirt Co.
Custom Apparel & Merchandise Production Partner
Jakarta, Indonesia