How to Merge Two Photos Seamlessly in PS: 2 Methods for Beginners

This article provides 2 ways to combine two photos seamlessly in PS, including the traditional layer mask method and the easier AI solution using Psaide Nano Banana Pro.

Combining two photos seamlessly is widely used in retouching, jewelry display and portrait creation. For example, merging a necklace image (Figure 1) onto a model photo (Figure 2) requires smooth edges, complete details and unified lighting. However, beginners often struggle with obvious seams, stiff edges and misalignment. This article introduces one traditional PS method and a more efficient Nano Banana Pro solution.

How to Merge Two Photos Seamlessly in PS

Method 1: PS Quick Selection + Layer Mask (Traditional)

Suitable for simple merging tasks, easier than the Pen Tool but needs careful adjustment.

Steps:

  1. Open PS, import the model photo (background) and necklace image (subject). Press Ctrl+J to duplicate both layers.
  2. Select the Quick Selection Tool (W), set brush size 10–15px, hardness 30%, and select the necklace.
  3. Hold Alt to subtract unwanted areas, Shift to add missing parts. Press Ctrl+J to copy the necklace.
 PS Quick Selection
  1. Use the Move Tool (V) to drag the necklace to the model image. Press Ctrl+T to adjust size and position.
Use the Move Tool (V) to drag the necklace to the model image.
  1. Add a black layer mask to the necklace layer. Use a soft white brush (10–15% hardness) to blend edges.
  2. Adjust Curves and Color Balance to match lighting. Use the Blur Tool to soften seams.

Pain Points: Low precision for fine chains, easy to select incorrectly, time-consuming (10–15 minutes per image), stiff edges for beginners.

Method 2: Nano Banana Pro – Best for Seamless Photo Merging

Powered by AI recognition and lighting fusion, Psaide’s Nano Banana Pro avoids seams and stiff edges. No complex cutting or adjusting. Just 3 steps:

Step 1: Mark the merging area in PS

Open the model image in PS, duplicate the layer. Use the Lasso Tool (L) to select the neck area. Fill it with red to help AI locate.

Mark the merging area in PS

Step 2: Open Nano Banana Pro and set ratio

Launch the Psaide plugin in PS (supports PS CC2015+, Windows/Mac). Choose Nano Banana Pro mode. Set ratio to 1:1 to keep the original size.

Open Nano Banana Pro and set ratio

Step 3: Enter prompt and generate

Type the prompt:

“Replace the necklace on the model in Figure 2 with the necklace in Figure 1, keep all details of Figure 1.”

Click Generate. AI finishes in 15 seconds.

The necklace blends naturally on the model’s neck, with unified lighting and no seams.

Enter prompt and generate

Type the prompt

Comparison

  • PS Quick Selection + Mask: Classic but complex, time-consuming, hard for beginners.
  • Nano Banana Pro: One‑click, fast, AI‑powered seamless merging, zero skills needed, perfect for jewelry and portrait compositing.

If you want to merge two photos seamlessly in PS without skills or effort, use PS + Psaide Nano Banana Pro. Create professional, traceless results in seconds.

Invitation Code: A86R4u

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