Transparent Background Images: Complete Guide to Creating & Using

1. Select → By Color Tool (or Fuzzy Select)
2. Click on background area
3. Edit → Clear (Delete key)
4. File → Export As → Choose PNG
5. Ensure "Save background color" is unchecked

<!-- PNG with transparency -->
<img src="logo-transparent.png" alt="Logo">

<!-- WebP with fallback -->
<picture>
  <source srcset="image.webp" type="image/webp">
  <img src="image.png" alt="Description">
</picture>

<!-- CSS background -->
<style>
  .logo {
    background-image: url('logo.png');
    background-color: transparent;
  }
</style>

Deliver logos in multiple formats:
├── logo-transparent.png     (primary web use)
├── logo-transparent.svg     (scalable, best quality)
├── logo-white-bg.jpg        (email signatures, documents)
├── logo-black-bg.png        (dark backgrounds)
└── logo-icon.png            (favicon, app icon)

// Check if image has alpha channel
const img = new Image();
img.src = 'image.png';
img.onload = () => {
  const canvas = document.createElement('canvas');
  canvas.width = img.width;
  canvas.height = img.height;
  const ctx = canvas.getContext('2d');
  ctx.drawImage(img, 0, 0);
  const data = ctx.getImageData(0, 0, 1, 1).data;
  console.log('Has alpha:', data.length === 4);
};