🖼️ NFT Image Processor: Your Guide to Perfecting Digital Art!

Welcome to the NFT Image Processor! This tool is designed to help you prepare your digital art and videos for minting on NFT marketplaces like OpenSea. Whether you're resizing, cropping, or adding a watermark, this guide will walk you through every step.

🚀 Getting Started

1. Open the App: Make sure you have the NFT Image Processor web page open in your browser.

2. Upload Your File: Click on the "Choose File" button (it's the large blue one).

• Select the image (PNG, JPEG, GIF) or video (MP4, WebM) you want to process from your computer.
• Once uploaded, you'll see a preview of your original image or video.

⚙️ Understanding the Controls

The app gives you several powerful options to customize your NFT asset. Let's break them down:

📏 Target Resolution

This section lets you set the final size of your image in pixels.

• Auto (Maintain Aspect Ratio): This is a great default! It will keep your image's original width and height, just as you uploaded it, without any resizing.
• Preset Resolutions (e.g., 1000x1000 px, 2000x2000 px, 1920x1080 px): These are common sizes used for NFTs and digital displays.
  Example: If your original image is 4000x3000 px and you choose "2000 x 2000 px (Standard)", your image will be resized to fit within a 2000x2000 square.
• Custom: Select this if you need a specific width and height that isn't listed.
  • Width (W): Enter your desired width in pixels.
  • Height (H): Enter your desired height in pixels.
  Example: If you need an image that's 1500 pixels wide and 2500 pixels tall, you'd select "Custom" and enter 1500 for Width and 2500 for Height.
• Lock Aspect Ratio: Check this box to prevent your image from looking stretched or squashed when you resize it. If you change the custom width, the height will automatically adjust to maintain the original proportions, and vice-versa.
  Tip: Always try to keep this checked unless you intentionally want to distort your image.

🌟 JPEG Quality (0-1)

This setting controls the compression level for JPEG images. It doesn't affect PNG or GIF files.

• Value: You can enter a number between 0 (lowest quality, smallest file size) and 1 (highest quality, largest file size). 0.8 is a good balance for most NFTs.
• Example:
  • 0.5: Will result in a smaller file, but the image might look a bit pixelated or blurry.
  • 0.9: Will keep most of the original quality but result in a larger file size.
• Tip: Experiment to find the lowest quality setting that still looks good. Smaller file sizes are often preferred for faster loading on marketplaces.

✂️ Crop Image (Optional)

This feature allows you to select a specific portion of your image to keep.

• X (Horizontal Position): The starting horizontal pixel coordinate of your crop area from the left edge of the original image.
• Y (Vertical Position): The starting vertical pixel coordinate of your crop area from the top edge of the original image.
• W (Width): The width of the area you want to crop.
• H (Height): The height of the area you want to crop.
• Example: If your image is 2000x2000 px and you want to crop the top-left 500x500 px square:

  • X: 0
  • Y: 0
  • W: 500
  • H: 500
• To Disable Cropping: Simply leave Width (W) and Height (H) as 0. The app will then use the entire image.
• Tip: Cropping happens before resizing. Make sure your crop dimensions make sense relative to your original image size.

✍️ Text Watermark (Optional)

Add your signature, brand name, or any text directly onto your NFT image.

• Watermark Text: Type the text you want to appear on your image.
  Example: "MyArtCollection" or "YourName.eth"
• Size: The font size of your watermark text in pixels.
  Example: 48 for a noticeable watermark, 24 for a more subtle one.
• Color: Choose the color of your watermark text using the color picker.
  Example: White (#FFFFFF) or Black (#000000) are common.
• Position: Select where the watermark will appear on your image.
  • Options include: Bottom Right, Top Left, Top Right, Bottom Left, Center.
• Tip: Use a color that contrasts with your image but isn't too distracting. Consider a slightly transparent color (though this app doesn't have opacity control, you can achieve this by choosing a lighter shade of your desired color).

✅ Process and Download

Once you've set all your desired parameters:

1. Click the "Process and Download" button.
2. The app will show a "Processing..." indicator.
3. After processing, you'll see a preview of your processed image on the canvas. This is what your final NFT image will look like!
4. Your browser will automatically download the processed image file (usually a PNG or JPG).

🚫 What Not to Do

• Don't expect video processing: This tool can upload and download videos, but it cannot resize or apply watermarks to videos. Video processing is much more complex and requires specialized software. Videos will be downloaded exactly as you uploaded them.
• Don't upload huge files: While the limit is 100 MB, very large images can still take a long time to process in your browser or might even crash the tab. Try to start with reasonably sized files.
• Don't forget to check the preview: Always look at the processed image preview before assuming it's perfect. Sometimes, adjustments are needed!

💡 Tips for NFT Creators

• Standard Sizes: Many marketplaces recommend square images (e.g., 1000x1000, 2000x2000, 3000x3000) for profile pictures and collection art.
• File Formats: PNG is great for images with transparency or sharp lines. JPEG is better for photographs or images with many colors where file size is a concern.
• Test on Different Devices: Once you mint your NFT, view it on a few different screens (desktop, mobile) to ensure it looks good everywhere.
• Backup Originals: Always keep a copy of your original, high-resolution artwork before processing it for NFTs!

We hope this guide helps you create amazing NFTs! Feel free to experiment with the settings and see what works best for your art. Happy minting!