How to Edit a Photo into Another Photo | Layer & Blend Methods

Editing one photo into another relies on layer-based software to stack, resize, and blend images, with the best results coming from mastering masks and blending modes.

The skill of combining two separate photos into a single, believable composite is one of the most practical tools in digital photography. Whether you are swapping a sky, inserting a person into a group shot, or creating a surreal double-exposure effect, the core workflow stays the same. You need a layer-based editor like Photoshop, GIMP, or a free online tool, and an understanding of how to stack, position, and blend those layers so they look like they were always one image.

The Core Workflow for Combining Two Photos

Every method for editing one photo into another follows the same fundamental sequence, regardless of the software you use. The steps involve placing the secondary image on top of the base image and then controlling how the two interact.

1. Open your base image — this is the background you want to keep.
2. Add the secondary image as a new layer on top. In most editors, this means dragging the second file onto the canvas or using a “Place” or “Open as Layer” command.
3. Resize and position the top layer using a Free Transform tool (usually Ctrl+T or Cmd+T). Drag the corner handles to scale it down, and hold the Shift key to maintain the aspect ratio so the image doesn’t distort.
4. Commit the transformation by pressing Enter or Return.
5. Blend the layers using a blending mode or a layer mask so the join between the two images looks natural rather than like a sticker.

Choosing the Right Software for the Job

The tool you pick determines how much control you have over the final composite. Adobe Photoshop remains the industry standard for its depth of masking and blending features, but free and web-based options handle basic overlays surprisingly well.

Photoshop users benefit from the widest set of tools — 27 blending modes, advanced layer masking, and the Auto-Blend Layers feature (available in version 2020 and later) that can align and blend images automatically. GIMP offers nearly equivalent control over layers and masks for free, though it lacks AI-driven tools like Photoshop’s recent subject-selection algorithms.

How to Edit a Photo into Another Using Photoshop

Adobe Photoshop’s overlay workflow is the most documented and reliable method for compositing two photos. The official Adobe approach relies on dragging one image onto another and using blending modes to merge them.

1. Open your base image using File > Open.
2. Drag the second photo’s file onto the Photoshop icon in your taskbar or dock. It opens in a new tab. Click the layer thumbnail for that tab and drag it directly onto the base image canvas — it appears as a new layer.
3. With the new layer selected, press Ctrl+T (Cmd+T on Mac) to enter Free Transform. Drag a corner handle inward to resize the image. If the layer disappears off-canvas, press Ctrl+0 or Cmd+0 to zoom out and see the full canvas.
4. Press Enter to lock the new size and position.
5. Open the Blending Mode dropdown (it reads “Normal” by default) and choose a mode like Overlay, Screen, or Multiply to blend the top layer with the base image. Each mode reacts differently to light and dark pixels, so cycle through a few to find the effect you need.
6. For precise control, add a Layer Mask (Layer > Layer Mask > Reveal All). Use a soft black brush to paint over parts of the top layer you want to hide, revealing the base image. A soft brush (hardness between 0% and 20%) prevents hard cut lines.
7. Save the file as a PSD (File > Save As) to preserve your layers. Export a flattened copy as a JPEG (File > Export > Export As, width around 1000 pixels) for sharing.

Layer masks are the single most important tool for realistic composites. A mask lets you undo any erase action later and gives you total control over which parts of each layer show through.

Free and Mobile Alternatives: GIMP and iPhone Subject Lift

Not everyone needs a Photoshop subscription. GIMP delivers professional-level control over layers and masks at no cost, though it lacks the automated one-click subject selection of modern mobile tools. On an iPhone running iOS 17 or later, the Subject Lift feature offers a surprisingly quick route for cutting out a person or object.

To lift a subject on iPhone: open the source photo in the Photos app, press and hold the subject until a glowing outline appears, then tap Share > Save Image. The lifted subject saves as a PNG with a transparent background. Open the background photo you want to use, then tap Share and paste the lifted subject onto it. Use two fingers to pinch-to-resize and tap to drag it into place. This method is free and fast — but it only works well when the subject has strong contrast against its original background. Low-light portraits or subjects with complex hair detail often require the manual masking control of GIMP or Photoshop to get clean edges.

The Last Step: Matching Lighting and Color

The difference between a good composite and a great one nearly always comes down to lighting. Even when the subject is perfectly cut out and sized, a mismatch in exposure, color temperature, or shadow direction will make the edit obvious. After positioning your top layer and applying your mask, open Image > Adjustments > Curves or Match Color to align the brightness and tone of the two layers. A subtle adjustment — moving the midtones just a few points — is often all it takes to make the subject feel grounded in the new background.

The process of editing a photo into another is a three-act task: layer, position, blend. Get the blending step right — masks over erasers, soft brushes over hard ones, and a final pass on color matching — and you will produce composites that hold up under a second look.