March 24, 20262 min read
Overlay Images Online — Layer Photos on Top of Each Other
Overlay images online for free. Stack photos, add watermarks, or composite transparent PNGs on backgrounds. No signup required.
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Want to layer one image on top of another? The MyPDF Overlay Image tool lets you composite images with adjustable position, opacity, and blending — perfect for watermarks, mockups, and creative photo edits.
How to Overlay Images
- Upload a base image and one or more overlay images.
- Position the overlay, adjust opacity, and set the blending mode.
- Download the composited result as JPG or PNG.
Overlay Applications
| Application | Opacity | Best Format |
|---|---|---|
| Watermark branding | 20-40% | PNG with transparency |
| Logo placement | 80-100% | PNG with transparency |
| Double exposure effect | 40-60% | Any |
| Mockup design | 100% | PNG with transparency |
Practical Tips
- Use PNG overlays with transparent backgrounds for the cleanest compositing — JPG overlays will include their white backgrounds.
- Lower opacity to 20-30% for subtle watermarks that protect your work without distracting viewers.
- Match the resolution of your overlay to your base image for sharp, professional results.
Can I overlay multiple images at once?
Yes. You can add multiple overlays to a single base image, each with its own position and opacity settings.
What blending modes are available?
Common modes include Normal, Multiply, Screen, and Overlay — similar to layer blending in Adobe Photoshop.
Related Tools
- Image Watermark — add text or image watermarks
- Make Transparent Image — create transparent PNGs for overlays
- Combine Images — place images side by side
- Image Collage — arrange images in grid layouts
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