How to Upscale Midjourney Images to 4K,8K, and Print Quality

You've created stunning AI art with Midjourney, but when you try to print it or use it on a 4K display, it looks pixelated. Midjourney's native resolution is impressive for web use, but falls short for large prints, wallpapers, and professional applications. The solution? AI upscaling that preserves your artwork's quality while dramatically increasing resolution — including workflows specifically built for upscaling to 4K.

This guide covers everything you need to know about upscaling Midjourney images—from understanding native resolutions to creating print-ready masterpieces.

Understanding Midjourney's Native Resolution

Creating stunning AI art is just the first step—upscaling unlocks its full potential.

Before upscaling, you need to understand what Midjourney actually outputs:

Default Resolutions by Version

Aspect Ratio Considerations

Midjourney's --ar parameter changes dimensions while maintaining overall pixel count:

--ar 1:1  → 1024×1024 (1 MP)
--ar 16:9 → 1456×816 (1.2 MP)
--ar 2:3  → 832×1248 (1 MP)
--ar 3:2  → 1248×832 (1 MP)

What Resolution Do You Actually Need?

Let's calculate requirements for common use cases:

Digital Display Requirements

Print Requirements at 300 DPI

Method 1: Midjourney's Built-In Upscale

Midjourney offers native upscaling options, but they have limitations.

Using the U1-U4 Buttons

After generating an image grid:

1. Click U1, U2, U3, or U4 to select and upscale
2. The image upscales to approximately 1024×1024 (if starting from grid)
3. Use Upscale (Subtle) or Upscale (Creative) for further enhancement

Upscale Subtle vs. Creative

Limitations of Native Upscaling

• Maximum ~4 megapixels (2048×2048)
• Uses additional fast/relax hours
• Limited control over enhancement style
• Not sufficient for large prints
• Quality can vary unpredictably

Method 2: External AI Upscaling (Recommended)

For serious print work or 4K+ displays, external AI upscaling is essential.

Why External Upscalers Work Better

1. Specialized Training: Trained specifically on upscaling tasks
2. Higher Limits: Achieve 4x, 8x, or even 16x scaling
3. Consistent Results: Predictable, reliable quality
4. No Credit Usage: Doesn't consume Midjourney hours
5. More Control: Choose enhancement intensity

Step-by-Step: Upscaling Midjourney Images

Here's the complete workflow using myimageupscaler.com:

Step 1: Generate Your Base Image

/imagine a majestic mountain landscape at sunset,
cinematic lighting, highly detailed --ar 16:9 --v 6

Use the highest quality settings in Midjourney:

• Use --quality 2 for more detail (uses more GPU time)
• Add --style raw for less processing (more upscaling headroom)

Step 2: Use Midjourney's Native Upscale First

Click the U button for your preferred variation, then use Upscale (Subtle). This gives you the best starting point.

Step 3: Download the Full Resolution

Click on the upscaled image, then open in browser and save. Ensure you're getting the full resolution, not a preview.

Step 4: AI Upscale

1. Visit myimageupscaler.com
2. Upload your Midjourney image
3. Select 2x for moderate upscaling or 4x for maximum resolution
4. Process (typically 30-60 seconds)
5. Download your enhanced image

Print-Ready Workflow: Complete Guide

Proper preparation ensures your AI art looks stunning in print.

Creating print-worthy files from Midjourney requires attention to several factors.

Workflow Overview

Midjourney Generate → Native Upscale → Download PNG
→ AI Upscale → Color Profile → Export for Print

Step 1: Optimize Midjourney Generation

For print-intended artwork:

/imagine [your prompt] --ar [print ratio] --v 6 --quality 2

Use these aspect ratios for common print sizes:

Step 2: Calculate Upscaling Requirements

Use this formula:

Required Scale = (Print Inches × 300 DPI) ÷ Current Pixels

Example: 16×20 print from 2048×2560 image
Width: (16 × 300) ÷ 2048 = 2.34x
Height: (20 × 300) ÷ 2560 = 2.34x

→ Use 4x upscale for safety margin

Step 3: AI Upscaling for Print

Upload to myimageupscaler.com and select the appropriate scale:

Step 4: Color Space Conversion

For professional printing:

1. Open in Photoshop/GIMP
2. Convert to CMYK: Edit → Convert to Profile → CMYK
3. Soft Proof: View → Proof Colors to preview print output
4. Adjust if needed: Some RGB colors can't be reproduced in print

Step 5: Export Settings

Before and After: Upscaling Results

Here's what AI upscaling achieves with Midjourney artwork:

Notice how the AI enhancement:

• Sharpens fine details and textures
• Maintains the artistic style
• Adds natural detail without artifacts
• Preserves color accuracy

Optimizing Different Midjourney Styles

Different artistic styles benefit from tailored upscaling approaches.

Different art styles require different upscaling approaches:

Photorealistic Images

Midjourney's photorealistic outputs respond excellently to AI upscaling:

• Recommended scale: 4x
• Focus areas: Skin texture, hair detail, fabric
• Watch for: Over-sharpening on smooth gradients

Illustrated/Stylized Art

Cartoon, anime, or illustrated styles:

• Recommended scale: 2-4x
• Focus areas: Clean line preservation, flat color areas
• Watch for: Unwanted texture addition to flat areas

Abstract and Painterly

Artistic, brushstroke-heavy styles:

• Recommended scale: 2x (start conservative)
• Focus areas: Brush texture, color transitions
• Watch for: AI "correcting" intentional imperfections

Common Issues and Solutions

Problem: Upscaled Image Looks Over-Sharpened

Cause: Some AI upscalers apply aggressive sharpening.

Solution:

• Use a more subtle upscaler like myimageupscaler.com
• Apply slight Gaussian blur (0.5px) in post-processing if needed
• Start with 2x instead of 4x scaling

Problem: Colors Shifted After Upscaling

Cause: Color profile mismatch or compression artifacts.

Solution:

• Download original as PNG, not JPEG
• Ensure you're using the same color profile throughout
• Process from the highest quality source

Problem: Visible Artifacts or Halos

Cause: JPEG compression in source, or upscaling beyond limits.

Solution:

• Always start from PNG source when possible
• Limit to 4x scaling maximum
• Use Midjourney's "Subtle" upscale before external processing

Problem: Text or Fine Details Blurry

Cause: AI optimized for photos, not text.

Solution:

• Use myimageupscaler.com which preserves text
• For critical text, consider adding it in Photoshop after upscaling
• Avoid upscaling images with small text beyond 2x

Frequently Asked Questions

Can I upscale Midjourney images indefinitely?

No. Each upscaling pass adds some artifacts. Generally, limit yourself to:

• One Midjourney native upscale
• One external AI upscale (2-4x)

Going beyond this typically degrades quality.

Is it legal to sell prints of upscaled Midjourney images?

As of 2024, Midjourney's Terms of Service allow commercial use for paid subscribers. However, copyright considerations are evolving—consult legal advice for commercial applications.

What's the maximum usable print size from Midjourney?

With optimal workflow (native upscale + 4x AI upscale):

• Starting from V6 at 2048×2048: Up to 27×27 inches at 300 DPI
• Starting from 1024×1024: Up to 13×13 inches at 300 DPI

Should I upscale before or after editing?

Before editing. Upscale first, then apply any color corrections, compositing, or retouching. This ensures your edits happen at full resolution.

Does upscaling use Midjourney credits?

External AI upscaling (myimageupscaler.com) does not use Midjourney credits. Only Midjourney's native upscale functions consume GPU time.

Can I upscale someone else's Midjourney images?

Technically yes (the upscaler doesn't know the source), but respect copyright and the original creator's rights. Only upscale images you have permission to use.

What file format should I save upscaled images in?

• For further editing: PNG or TIFF (lossless)
• For web use: WebP or JPEG at 85%+ quality
• For printing: TIFF or high-quality JPEG (95%+)

Pro Tips for Best Results

1. Generate at Higher Quality First

/imagine [prompt] --quality 2 --v 6

The --quality 2 parameter gives Midjourney more processing time, resulting in more detail to preserve during upscaling.

2. Use Raw Style for Upscaling

/imagine [prompt] --style raw --v 6

"Raw" style applies less automatic enhancement, leaving more headroom for AI upscaling.

3. Avoid Heavy Post-Processing Before Upscaling

If you're going to upscale, do it before:

• Sharpening
• Heavy contrast adjustments
• Aggressive noise reduction

4. Keep Original Files

Always save your original Midjourney downloads. As AI upscaling technology improves, you can re-process them for even better results.

5. Test Before Committing

For important prints, order a small test print first. Screen displays and physical prints can look quite different.

Recommended Workflow Summary

For best results every time:

1. Generate with --quality 2 and appropriate aspect ratio
2. Native upscale using Upscale (Subtle)
3. Download the PNG from Discord (right-click → Open Original)
4. AI upscale with myimageupscaler.com at 2-4x
5. Color adjust if printing (convert to CMYK)
6. Export in appropriate format for your use case
7. Test print before ordering large quantities