How to Make a Mockup in Photoshop: Step by Step

Creating realistic mockups in Photoshop is one of the most useful skills for graphic designers. Whether you're presenting a poster, billboard, packaging design, or advertising campaign, a good mockup helps your artwork look like it belongs in the real world.

In this tutorial, we'll show you how to make a mockup in Photoshop using Smart Objects, lighting effects, and subtle grain. We'll demonstrate the process with our own Free Subway Lightbox Poster Mockup, which you can download for free and use to follow along.

Unlike tutorials that simply show you how to insert a design into an existing template, we'll explain how the underlying Photoshop effects work so you can create and customize your own mockups.

By the end, you'll understand how to prepare a scene, create an editable Smart Object, simulate illuminated advertising, and add texture for a more realistic presentation.

Download the Free PSD Mockup to Follow Along

For this tutorial, we're using our Free Subway Lightbox Poster Mockup, a Photoshop PSD featuring an illuminated advertising display inside a modern subway station.

The scene includes realistic architectural details, metallic wall panels, and an editable poster area designed for advertising and graphic design presentations.

You can download the finished mockup, explore its layers, and replace the artwork with your own design.

Download the Free Subway Lightbox Poster Mockup

We'll also explain how to recreate the important elements yourself, so you can apply the same techniques to photographs, 3D renders, and other suitable images.

What Do You Need to Create a Mockup in Photoshop?

Before starting, you'll need Adobe Photoshop, a background image, and the artwork you want to present.

1. A Background Image

The foundation of a realistic mockup is a good image of the product, object, or environment where your design will appear.

You can use:

Your own photography. Photograph a blank poster frame, storefront sign, packaging box, or other suitable object.

A 3D render. Create a scene using Blender, Cinema 4D, or another 3D application. This gives you greater control over camera angles, lighting, and materials.

An AI generated image. Generate a suitable background showing an empty advertising display, product, or object. Check the image carefully for inconsistent geometry, warped surfaces, or unrealistic details before using it in a mockup.

For all three approaches, make sure you have permission to use and distribute the background image as intended.

2. Your Design

Prepare the artwork you want to display.

This might be a poster, advertising campaign, logo, illustration, or brand identity.

For the subway lightbox example, we're using a minimal typographic design featuring Mockups Supply branding.

3. Adobe Photoshop

We'll use several Photoshop features:

• Rectangle Tool

• Smart Objects

• Layer Styles

• Inner Shadow

• Inner Glow

• Overlay blending mode

• Add Noise filter

These tools allow us to create a mockup that remains editable even after the visual effects have been added.

Step 1: Prepare Your Background Image

Open your background image in Photoshop using File > Open.

For this tutorial, we're working with a subway station scene featuring an empty vertical lightbox surrounded by metallic wall panels.

The lightbox is positioned almost directly in front of the viewer, which makes it a good example for beginners.

Before adding any artwork, inspect the image.

Look at the display's visible boundaries, the direction of the lighting, and how the frame interacts with the wall.

These details will help you position your artwork correctly and make the finished presentation more believable.

If you're creating a mockup from your own photograph, make sure the display area is clean and free from unwanted objects.

For a scene viewed at an angle, you'll need to adjust the artwork's perspective in a later step.

Design tip: Start with a simple, flat display before moving on to curved objects, wrinkled fabric, or complicated packaging surfaces. Flat surfaces are easier to match with Photoshop transformations.

Step 2: Create the Artwork Placeholder

Now we'll create the editable area where our design will appear.

Select the Rectangle Tool (U) in Photoshop.

Draw a rectangle over the empty display, matching the visible poster area as closely as possible.

Give the shape a temporary solid fill color. We'll replace this content with our artwork shortly.

Rename the layer Add your design here.

Next, right click the rectangle layer in the Layers panel and choose Convert to Smart Object.

Your rectangle is now an editable Smart Object.

This step is important because Smart Objects let you replace the artwork while preserving transformations and layer effects in the main Photoshop document.

If you're creating a more complex mockup, you can also transform the Smart Object to match the perspective of the photographed surface.

For example, a poster photographed from the side may require you to select Edit > Transform > Distort and adjust its corners.

In our subway lightbox example, the surface is nearly frontal, so the artwork needs relatively little perspective correction.

Step 3: Add Your Design Inside the Smart Object

Double click the thumbnail of your new Smart Object in the Layers panel.

Photoshop opens its contents in a separate document, often using the PSB format.

This is where you'll place the artwork that should appear in your mockup.

For our example, we've created a simple graphic featuring large vertical Mockups Supply typography over a gray gradient.

You can use any suitable poster artwork, illustration, or advertising design.

Make sure the design fills the intended canvas area without unwanted empty space.

When you're finished, select File > Save.

Return to the original Photoshop document.

Your design should now appear inside the lightbox.

The main advantage of this workflow is that the artwork and the surrounding scene remain separate.

You can edit the Smart Object later without rebuilding the entire presentation.

Step 4: Make the Poster Look Like It Belongs Inside the Frame

At this point, your artwork is visible inside the display, but it may still look like a flat image placed over a photograph.

To make the mockup more convincing, we need to create a sense of depth.

The real lightbox has a physical frame, and the poster appears to sit slightly behind its edges.

We'll simulate that subtle depth using Photoshop's Inner Shadow effect.

Add Inner Shadow

Select your Add your design here Smart Object layer.

Double click the layer outside its thumbnail or name to open Layer Style.

Enable Inner Shadow.

For our subway lightbox mockup, we use these settings:

The Inner Shadow adds subtle darkening along the inside of the poster area.

This helps the artwork appear recessed within the frame rather than floating in front of it.

The effect should be noticeable enough to create depth but subtle enough that it doesn't distract from the design.

These settings are based on our example PSD. If your poster area is much smaller or larger, adjust the shadow size and distance accordingly.

Design tip: Strong inner shadows can make a mockup look artificial. Start with a subtle effect and increase it only when the photograph requires additional depth.

Step 5: Create the Illuminated Lightbox Effect

One of the most important details in this tutorial is the lighting.

We're creating a subway lightbox poster, not an ordinary printed poster attached to a wall.

A backlit advertising display contains a light source behind the printed graphic, which changes how the artwork appears.

To simulate this effect, we'll use Photoshop's Inner Glow.

Add Inner Glow

Keep the same Smart Object selected.

Open Layer Style and enable Inner Glow.

These are the settings used in our Mockups Supply example:

The white Inner Glow introduces soft brightness around the inside edges of the artwork.

Combined with the existing Inner Shadow, it helps create the appearance of a framed, illuminated advertising display.

The two effects serve different purposes.

Inner Shadow helps establish depth between the poster and its frame.

Inner Glow introduces a soft lighting effect that makes the display feel illuminated.

Together, they produce a more convincing result than simply placing a bright graphic over the background.

Why These Settings Work for Our Example

Our poster area is relatively large, so a 140 px glow creates a broad, soft transition around the display's edges.

On a smaller Photoshop document, this value may be too strong.

The correct settings always depend on the size of the artwork, the original lighting, and the type of display you're creating.

A useful way to evaluate the result is to temporarily disable Inner Glow and compare the two versions.

If the effect makes the poster look unnaturally washed out, reduce its opacity or size.

Important: An illuminated poster should still preserve readable typography and recognizable colors. Excessive white glow can destroy the contrast of your original artwork.

Step 6: Add Realistic Grain and Texture

Even with realistic lighting, a mockup can sometimes look too clean.

Computer generated surfaces, digital gradients, and edited photographs may have different levels of texture.

A small amount of grain can help unify the scene and reduce the overly smooth appearance of the finished image.

For our subway lightbox mockup, we use a separate texture layer.

Create a Gray Texture Layer

Create a new layer above the artwork and the background.

Fill the layer with a medium gray color.

In our example, we use approximately:

Gray color: #747474

The texture layer covers the entire image, not just the poster.

This allows the grain to affect the overall composition and make the different elements feel more consistent.

Convert the gray layer into a Smart Object so the filter remains editable.

Apply the Add Noise Filter

With the gray Smart Object selected, go to:

Filter > Noise > Add Noise

Use the following settings:

Gaussian distribution produces a randomized grain pattern.

Enabling Monochromatic prevents the filter from introducing colored noise into the scene.

At 1%, the grain is intentionally subtle.

The goal isn't to make the image look heavily textured. We want to introduce just enough variation to help the mockup feel less digitally perfect.

Change the Blend Mode to Overlay

In the Layers panel, change the texture layer's blending mode from Normal to Overlay.

Keep the layer opacity at 100% as a starting point.

Overlay allows the gray texture and noise to interact with the photograph underneath rather than appearing as a solid gray rectangle.

One important detail: neutral 50% gray, approximately #808080, has minimal tonal effect in Overlay mode.

Because our example uses the slightly darker #747474, the texture layer can also subtly darken the underlying scene.

If you want a more neutral result, experiment with #808080 or reduce the layer opacity.

Design tip: Always inspect the grain at 100% zoom. A texture that looks subtle when the image is zoomed out may become too noticeable when viewed at full resolution.

Step 7: Replace the Artwork and Test Your Mockup

The final step is to make sure your mockup works with more than one design.

Double click the Add your design here Smart Object.

Replace the existing artwork with another poster.

Save the source document and return to the main PSD.

Your new design should now appear inside the subway lightbox with the same lighting, shadow, and grain effects.

This is what makes a Smart Object mockup useful.

Instead of recreating the presentation for every design, you build the visual effect once and reuse it.

Try replacing the original artwork with both a light design and a dark design.

Light artwork can reveal whether your glow is too strong, while dark artwork can make uneven shading or edge effects easier to notice.

If necessary, adjust the layer styles to accommodate the new design.

Finally, save your PSD and export a JPG or PNG for your portfolio, presentation, or social media.

Frequently Asked Questions

How do you make a mockup in Photoshop?

Start with a photograph or rendered scene, create a Smart Object where the design should appear, and insert your artwork. Use transformations, masks, lighting effects, and texture to make the result look realistic. Save the file as a PSD to preserve its editable layers.

What is a Smart Object in Photoshop mockups?

A Smart Object is an editable layer that preserves source artwork and allows it to be replaced without rebuilding the surrounding composition. It's commonly used in PSD mockups for posters, packaging, apparel, and branding projects.

How do you create a glowing poster effect in Photoshop?

You can use Inner Glow on the artwork layer to create soft illumination around the inside edges. Combine it with subtle Inner Shadow settings to create a sense of depth inside a framed lightbox. Adjust the values according to your scene and artwork dimensions.

What Photoshop settings should I use for a lightbox mockup?

For our subway lightbox example, we use Inner Shadow at 35% opacity with a 5 px size, and white Inner Glow at 50% opacity with a 140 px size. These values are specific to our example and may need adjustment for other image dimensions.

How do you add realistic grain to a Photoshop mockup?

Create a gray texture layer, convert it to a Smart Object, apply Filter > Noise > Add Noise, and use a subtle amount of monochromatic noise. Set the layer to Overlay and adjust its gray value or opacity to control the final effect.

Can I create mockups from AI generated images?

Yes, provided the image is suitable for the intended use. AI generated backgrounds can be used as a starting point, but they may contain unrealistic surfaces or inconsistent perspective. Check the details carefully and confirm you have the necessary usage rights.

Can I download the subway lightbox mockup for free?

Yes. The Free Subway Lightbox Poster Mockup is available as an editable Photoshop PSD through Mockups Supply.

Final Thoughts

Creating a realistic Photoshop mockup doesn't necessarily require complicated 3D software or dozens of adjustment layers.

The key is understanding how artwork interacts with the original scene.

In our subway lightbox example, we used a Smart Object to make the design editable, Inner Shadow to establish depth, Inner Glow to simulate illumination, and a subtle grain layer to unify the composition.

These techniques can also be adapted to posters, billboards, packaging, signage, and other design presentations.

If you'd like to explore more examples and learn from prepared Photoshop templates, visit our free mockup collection.

You'll find editable PSD mockups for branding, apparel, packaging, posters, and other creative projects.

Explore All Free Mockups