What image formats are supported?

Input: JPG, PNG, WebP. Output: PNG, JPG, WebP. Transparent overlay PNG files are fully supported — the transparency is preserved in the final composite.

Are my images uploaded to a server?

No. All processing happens locally in your browser using the Canvas API. Your images never leave your device.

How do I put a picture on another picture?

Upload the base photo as your background, then click Add to overlay the second picture on top. Drag it into position, resize with the corner handles, and export. This is the fastest way to put picture on picture without installing any software.

How do I add image to image for a collage?

Upload your main photo as the background, then use the Add button to overlay additional images. This photo overlay tool lets you freely position, resize, and layer each image to build a custom collage. If you need to merge multiple photos side by side, try the Merge Images tool instead.

Can I put image on top of another with transparency?

Yes. Upload the bottom image as background, then add the top image as an overlay. Use the opacity slider to blend them — perfect for double-exposure effects or semi-transparent watermarks.

Can I add a frame overlay to my photo?

Yes. Find a transparent PNG frame image, upload your photo as the background, then add the frame as an overlay. Resize it to fit the canvas and export — the frame's transparent areas stay transparent. After exporting, you can also use the Round Corners tool to soften the edges.

How do I combine images into one file?

Upload one image as the background, then add more images as overlays. Position each one, resize as needed, and export — all images are combined into a single file. This is the easiest way to combine images without Photoshop.

How do I superimpose images for a watermark?

Add your logo or text image as an overlay on top of your photo, then lower the opacity slider to create a semi-transparent watermark effect. This is a common way to protect images before sharing online. If you need to remove an existing watermark from an image, try the Watermark Remover tool.

BulkPicTools

Local · 0 Uploads

Overlay Multiple Images on Any Background

Put multiple images on top of a background photo. Move, resize, rotate, reorder, and adjust opacity.

Drop your background image here

Support JPG, PNG, WebP. This will be the base layer.

100% client-side processing. Your images never leave your device.

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Key Features of Image Overlay

Multiple Overlay Layers

Add unlimited overlay images on top of your background

Drag & Position

Click and drag to position each overlay precisely

Resize & Rotate

Scale proportionally and rotate any angle

Opacity Control

Adjust transparency for each overlay independently

Guides & Tips

What is image overlay and when do you need it?

Image overlay online means placing one or more images on top of a background photo to create a single composite image. Common use cases include adding a logo to a product photo, placing a watermark on images before sharing, combining stickers or frames with a personal photo, or creating a picture-in-picture effect for presentations.

Unlike full photo editors that require installation and a learning curve, an image overlay online tool lets you do this directly in your browser. Upload a background, add your overlays, drag them into position, and export — all in under a minute.

How to put a picture on another picture step by step

Step 1 — Upload a background image. The background determines the canvas size and aspect ratio of the final output. Supported formats: JPG, PNG, WebP.

Step 2 — Add overlay images. Click the Add button and select one or more images. Transparent overlay PNGs work perfectly — the alpha channel is preserved in the final composite.

Step 3 — Position and edit each overlay. Click an overlay on the canvas to select it. Drag to reposition, use the corner handles to resize proportionally, or rotate with the rotation handle. Adjust opacity from the layer panel for a subtle watermark effect.

Step 4 — Reorder layers if needed. Use the layer panel on the right to move overlays up or down in the stacking order. Items at the top of the list appear on top in the final image.

Step 5 — Export. Choose PNG (lossless, best for transparency), JPG (smaller file size), or WebP (modern format with good compression). Download your combined image — it was never uploaded to any server. If the exported PNG is too large, run it through the Image Compressor to reduce the file size while keeping quality.

Common use cases: frame overlay, watermark, and photo merge

Frame overlay. Overlay a decorative frame PNG on top of a portrait or landscape photo to give it a polished, finished look. The frame's transparent center lets the original photo show through.

Logo watermarking. Add your brand logo to product photos before publishing on e-commerce platforms. Adjust opacity to create a subtle watermark that protects your images without distracting from the content.

Merge photos into one image. Combine multiple photos into a single composition — useful for before-and-after comparisons, mood boards, or social media collages. For side-by-side layouts, the Merge Images tool is also helpful.

Social media graphics. Combine a background photo with stickers, icons, or text overlays to create eye-catching posts for Instagram, TikTok, or Facebook. If you want to split a single image into multiple sections first, try the Split Image tool.

Presentations and documents. Create picture-in-picture compositions by overlaying a smaller image on a larger background — useful for comparison slides or visual reports.

Product mockups. Place a product image or design onto a lifestyle background to create mockup visuals for marketing materials.

Why this tool keeps your images private

Most online image editing tools require you to upload your photos to their servers. This raises privacy concerns — who has access to your images? Are they stored permanently? Could they be used for training AI models?

This image overlay tool takes a different approach: every operation happens locally in your browser using the HTML Canvas API. Your images are never transmitted over the internet. There is no server-side processing, no temporary storage, and no data collection. Once you close the browser tab, all image data is gone.

This makes the tool suitable for sensitive photos — personal portraits, business documents, medical images, or any content you do not want to expose to third-party servers.

How to use

Upload Background

Drag and drop or click to upload your background image

Add Overlays

Click the Add button to add logos, stickers, or other images

Edit Layers

Drag to move, use handles to resize and rotate each overlay

Export

Choose format (PNG/JPG/WebP) and download your composite image

Frequently Asked Questions About Image Overlay

You can add up to 20 overlay images on a single background. Each overlay can be independently positioned, resized, rotated, and have its opacity adjusted.