```markdown --- title: "Artwork Guidelines for Custom Printing: Print-Ready Files, DPI, Color Modes" subtitle: "SOP for Artwork Preparation - What Works, What Doesn't" category: Artwork Preparation tags: [Artwork, Print-Ready, DPI, Color Separation, SOP, 2026] author: Kevin Arnold publish_date: 2026-03-24 read_time: 10 min canonical: https://arnoldprints.com/blog/artwork-guidelines-print-ready-2026 meta_title: "Artwork Guidelines 2026 | Print-Ready Files, DPI & Color Modes - Arnold Prints" meta_description: "Print-ready artwork guidelines: file formats, DPI requirements, color modes, vector vs raster, and common mistakes. Avoid costly art setup fees." ---

---

Why Artwork Matters {#why-artwork-matters}

Bad files are expensive. Good files are free. Submit print-ready artwork and you pay nothing extra. Submit the wrong file and it costs you:

Art setup fees: $30–60 flat

Production delays: 24–48 hours

Color shifts from RGB → CMYK conversion

Pixelated edges, blurry prints, rejected runs

We've seen every version of this mistake. It's avoidable every time. This guide tells you exactly what we need — and why — so your job moves straight to production. ---

Accepted File Formats {#file-formats}

Vector (Best):

AI (Adobe Illustrator) — Industry standard. What we prefer.

EPS (Encapsulated PostScript) — Universal vector, works everywhere

PDF (Print-ready PDF) — Preserves vectors, widely supported

Raster (Acceptable with conditions):

PNG (Transparent background, 300+ DPI)

JPG (High quality, 300+ DPI)

TIFF (Print industry standard, large files)

PSD (Photoshop, layers preserved)

Not Accepted:

GIF — Low resolution, 72 DPI. Won't print.

BMP — Uncompressed, bloated files, no benefit

WEBP — Built for the web, not the press

SVG — Web vector format; not all RIPs support it

When in doubt, send vector. It's the format that never causes problems. ---

Vector vs Raster {#vector-vs-raster}

Understanding this distinction saves you money. Vector (Recommended):

Built from mathematical paths, not pixels

Scales to any size — no quality loss, ever

Sharp, clean edges at 1 inch or 100 inches

Small file size, easy to work with

Separates cleanly for screen printing

Best for: Logos, text, icons, simple graphics

Raster (Acceptable with caveats):

Built from pixels — resolution is fixed at creation

Enlarging it degrades quality. You can't recover lost pixels.

Large file size at print-ready DPI

Color separation is difficult and time-consuming

Best for: Photos and complex gradients only

The rule is simple: Vector for logos and text. Raster for photos. Mixing them up is the single most common mistake we see. ---

DPI Requirements {#dpi-requirements}

Minimum: 300 DPI at actual print size. That last part matters. A lot of people check DPI in their file editor and miss that the resolution has to hold at the *final printed dimensions* — not the file dimensions on screen. Here's how the math works: | Print Size | Minimum Pixel Dimensions | |---|---| | 4" × 4" left chest | 1,200 × 1,200 px (4 × 300) | | 8" × 8" full back | 2,400 × 2,400 px (8 × 300) | | 12" × 14" full front | 3,600 × 4,200 px | The mistake we see constantly: A 1,000 × 1,000 pixel file looks sharp on your monitor. Stretch it to an 8" print and you're at 125 DPI. That's blurry. That's a rejected file. Formula: Pixels ÷ Inches = DPI Quick field test: Zoom to 400% in your image editor. If edges look jagged or soft, the file isn't print-ready. Fix it before you submit. ---

Color Modes {#color-modes}

Spot Colors — Pantone (Best for Screen Printing):

Exact, repeatable color matching using PMS numbers

Solid, vibrant, consistent across every run

Separates cleanly — one color, one screen

Use for: Logos, brand colors, text, anything where color accuracy is non-negotiable

CMYK (Best for DTF):

Cyan, Magenta, Yellow, Black — the four-color process

Handles full-color images, gradients, and photorealistic artwork

Native to DTF printing

Use for: Photos, complex multi-color designs, DTF transfers

RGB (Not for Print):

Red, Green, Blue — how screens display color, not how ink works

Always converts to CMYK, and that conversion shifts colors

Some RGB values physically cannot be reproduced in ink

Never submit RGB files. Convert to CMYK or Pantone before you send anything.

Grayscale:

Black and white only

Converts to halftone for screen printing

Perfectly acceptable for single-color jobs

---

Screen Print Color Separation {#screen-print-separation}

What is separation? It's splitting your design into individual color layers — one per ink color. Each layer becomes its own screen. Each screen prints one pass. The process: 1. Each color isolated on a separate layer 2. Exported as individual files 3. One screen burned per color 4. Colors printed in registration, layer by layer How to set up your file:

Use AI or EPS with layers named by color

Specify Pantone numbers for every color

Flag whether the garment is dark and needs an underbase

Note print order (light to dark is standard)

Example — 3-color logo: | Layer | Color | Pantone | |---|---|---| | Layer 1 | Blue | PMS 300 | | Layer 2 | Yellow | PMS 123 | | Layer 3 | Text | PMS Black | That's 3 screens. 3 setups. If you don't separate it, we do — and that's where art fees come from. ---

DTF Artwork Requirements {#dtf-artwork}

DTF is forgiving on color, strict on resolution. Here's exactly what to send. Accepted File Formats:

PNG with transparent background, 300+ DPI

AI, EPS, PDF (vector, converted to CMYK)

JPG at high quality, 300+ DPI

Color Mode:

CMYK is ideal — DTF's native color space, best output quality

RGB will convert to CMYK and may shift slightly

Spot colors convert to CMYK process values

Resolution:

300+ DPI at print size — no exceptions

Vector files: unlimited, no DPI concern

Bleed and Transparency:

No bleed required — DTF cuts to the edge of your design

Leave a 1/8" margin as a safety buffer

PNG files must have a transparent background — no white boxes

---

Embroidery Digitizing {#embroidery-digitizing}

Embroidery doesn't print — it stitches. That requires a different kind of file entirely. What is digitizing? It's the process of converting your artwork into stitch instructions. A digitizer analyzes the design and assigns stitch types, directions, underlay patterns, and pull compensation. The output is a machine file: .DST, .PES, or .EMB. What we need from you:

Vector artwork: AI, EPS, or PDF

Clean, simple designs — detail that's visible at 2 inches works; detail that isn't, doesn't

Text at minimum 1/4" height

No gradients — thread doesn't blend the way ink does

Digitizing Fees: | Complexity | Fee | |---|---| | Standard (left chest or hat) | $30 | | Combo (left chest + hat) | $45 | This is a one-time fee. We store your stitch file — reorders cost nothing extra. ---

Common Artwork Mistakes {#common-mistakes}

We've seen all of these. Multiple times this week. ❌ Mistake #1: Low Resolution Web graphics are 72 DPI. Print requires 300. They look identical on screen and completely different on fabric. Always request 300+ DPI source files from your designer. ❌ Mistake #2: RGB Color Mode RGB is for monitors. The moment it hits our RIP, it converts to CMYK — and colors shift. Sometimes slightly. Sometimes dramatically. Design in CMYK or Pantone from the start and eliminate the guesswork. ❌ Mistake #3: Raster Logos A logo saved as a PNG from a website is not a logo file. It's a screenshot. Request the original vector from whoever created your brand — AI or EPS. ❌ Mistake #4: Missing Fonts If we don't have your font, the text substitutes or breaks. Outline all text before you save the file. No font file required, no substitution possible. ❌ Mistake #5: No Color Separation Merged layers mean we separate the file manually. That's labor. That's an art fee. Provide separated layers for screen printing and it's a non-issue. ❌ Mistake #6: Tiny Text Screen printing has physical limits. Text under 6pt won't hold detail. Embroidery text under 1/4" won't stitch cleanly. Minimum 8pt for screen print; 1/4" height for embroidery. ❌ Mistake #7: Hairline Strokes Lines under 1pt will drop out in production. They're too thin to hold ink. Set a minimum of 1.5pt for any stroked path in a screen print file. ❌ Mistake #8: No Bleed on Full-Bleed Prints If your design runs to the edge of the garment and there's no bleed, any slight shift in cutting shows a white gap. Add 1/8" bleed on all sides. Every time. ---

Art Setup Service {#art-setup-service}

Don't have print-ready files? Not a problem. We handle it. What's included:

Vector conversion — raster artwork rebuilt as clean vector paths

Color separation for screen print

Print-ready file preparation from scratch

Pantone color matching

Size adjustment to your print area

Pricing: | Complexity | Fee | |---|---| | Simple (1–2 colors) | $30 | | Moderate (3–4 colors) | $45 | | Complex (5+ colors or photos) | $60 | Turnaround: 24–48 hours. One-time charge. Your file gets stored on our end — reorders go straight to production, no additional art fees. ---

Print-Ready Checklist {#checklist}

Run through this before you submit. If every box is checked, your job starts without delays or fees. ``` □ File format: AI, EPS, or PDF (vector) — or PNG at 300+ DPI □ Resolution: 300+ DPI at actual print dimensions □ Color mode: CMYK or Pantone Spot — not RGB □ Text: Outlined or fonts fully embedded □ Colors: Pantone numbers specified (screen print jobs) □ Layers: Separated by color (screen print jobs) □ Transparency: PNG with transparent background (DTF jobs) □ Dimensions: Correct size for your print area □ Bleed: 1/8" added on all sides (full-bleed designs) □ Effects: Transparency flattened, drop shadows removed ``` All ten checked? You're print-ready. Submit with confidence. ---

Get a Quote {#get-quote}

Every quote includes a free artwork review. We'll flag any issues before your job goes to press — no surprises, no hidden fees. Three ways to get started:

Business Quote Form — Upload your artwork directly

Email: sales@arnoldprints.com — Attach your files

Call: (561) 323-7573 — Talk to someone who knows what they're looking at

Related Resources:

Artwork Requirements

Screen Printing Services

DTF Printing Services

Embroidery Services

--- Internal Links (10+ money pages):

/pages/business-quote-form

/pages/artwork-requirements

/pages/screen-print-services

/pages/dtf-printing

/pages/embroidery-services

/pages/our-work

/pages/contact-us

/pages/garment-selection-guide

/pages/bulk-sales

/apps/dtf-calculator

Links to silo content:

/blog/dtf-vs-screen-printing-which-should-you-choose-in-2026 (pillar)

/blog/dtf-complete-guide-2026 (cluster)

/blog/screen-printing-explained-2026 (cluster)

/blog/dtf-gang-sheet-optimization-2026 (cluster)

/blog/color-separation-screen-printing-2026 (cluster)

```

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