How can I add shadows to my product photos using AI?

Quick Answer

For a new product-only image on a flat color, use Nightjar's product-image creation workflow, Product Photography, and choose its Shadow setting: None, Soft contact, Hard, Long, or Reflection. The Shadow setting is unavailable with a Fashion Model, a saved image-backed Background, or the automatic setting; for those cases, or for an existing photo, use Nightjar's plain-English editing workflow, Edit Images, and describe the shadow's contact point, direction, softness, length, and color.

How do I choose the right AI shadow workflow?

The dedicated Shadow setting is the simplest route for clean product-only images. Add the product, leave Show Model off, select a flat background color, then choose the treatment that fits the shot:

Shadow choice	What it does
None	Removes the visible contact shadow for a deliberately weightless presentation.
Soft contact	Adds a subtle, feathered shadow directly beneath the product.
Hard	Creates a crisp, directional cast shadow.
Long	Extends the cast shadow across the surface as if the light were low.
Reflection	Replaces the cast shadow with a soft mirror reflection on a glossy floor.

A Photography Style, the reusable control for lighting and photographic feel, can keep the overall light consistent, but it does not replace the Shadow setting. A saved Background or a shot with a Fashion Model requires scene-aware grounding, so the fixed Shadow menu is not shown. For a catalog, save these choices as a Recipe, the reusable Create-form setup that can carry the same flat color, Shadow, Photography Style, and output settings to the next product.

For an existing photo or a scene-based image, open Edit Images, add the image to the board, and refer to it directly in the instruction. For example: “Keep the product, label, proportions, and background unchanged. Add a soft contact shadow at the base, plus a faint cast shadow extending right. Match light from the upper left and use a neutral gray, feathered falloff.”

What makes an AI product shadow look realistic?

A contact shadow is the tight, dark area where the product meets a surface; a cast shadow extends away from the product. The contact shadow provides grounding, while the cast shadow describes the light. Adobe's photography guidance notes that shadow shape, intensity, and color change with the light's angle, direction, and temperature.

Direction: The shadow must fall away from the visible key light and agree with highlights on the product.
Softness: A larger or more diffused apparent light source produces softer edges; direct light produces harder edges. Adobe's guide to diffused light explains this relationship.
Length: Low-angle light creates a longer cast shadow. Higher light keeps it shorter and closer to the product.
Color: Use the scene's ambient light. A neutral studio shadow is rarely pure black, while warm or cool surroundings can tint it slightly.

Transparent and reflective products need extra care. Glass can transmit or refract light into a patterned shadow, while polished metal must reflect a lighting environment that agrees with the floor and cast shadow. A generic opaque gray silhouette often makes either material look false.

How should I review an AI-generated product shadow?

Inspect the full-size image before publishing. Check that the product touches the surface, the contact and cast shadows connect naturally, the direction agrees with every visible light cue, and the edge softness changes plausibly with distance. Then compare labels, logos, proportions, texture, transparent edges, and reflections with the product photos used as references.

Nightjar's built-in visual review compares supported outputs with the request and reference images and can retry obvious eligible failures at no extra Credit cost. It is still important to approve the final image yourself. If the shadow needs measured geometry or tightly controlled opacity and color, build it manually; Adobe's Photoshop guide documents angle, distance, spread, size, blending, and color controls. If you composite a photographed shadow, Adobe's compositing guidance recommends matching light direction, light quality, perspective, and scale. For complex glass, liquids, mirrors, or high-stakes product details that remain unreliable after editing, use a real product shoot.