Adobe Generative Fill is the most practically powerful AI tool inside Photoshop. It removes objects, adds new content, extends images beyond their edges, and replaces selected areas with AI-generated content that seamlessly matches the surrounding image, all using the Firefly AI model trained on licensed content.
This adobe generative fill tutorial covers everything from free trial access to advanced professional techniques.
What Is Adobe Generative Fill?
Adobe Generative Fill is an AI-powered Photoshop feature powered by Adobe Firefly that generates new image content inside a selected area, seamlessly matching the surrounding image’s style, lighting, perspective, and texture, used for removing unwanted objects, replacing background elements, adding new content, and extending image canvas beyond its original edges.
It uses Adobe Firefly’s image generation model trained on licensed Adobe Stock content and public domain material, giving outputs commercial-safe status.
The core mechanic is simple: make a selection in Photoshop using any selection tool, click “Generative Fill” in the contextual toolbar, optionally type a text prompt describing what you want, click Generate. Photoshop produces three variations on a new layer called a Generative Layer. Browse the variations and keep your preferred result.
What makes it uniquely powerful compared to standalone AI generators is context awareness. Generative Fill doesn’t just generate an image, it generates content that fits within the specific context of your existing image: matching the perspective, lighting direction, color temperature, and visual style of the surrounding pixels.
How to Access Generative Fill Free
Adobe offers a free Photoshop trial that includes full Generative Fill access.
- Go to adobe.com/products/photoshop
- Click “Start free trial” (no credit card required for the trial period)
- Download and install Photoshop
- Generative Fill is fully available during the trial
The trial gives you 7 days of full Creative Cloud access including Photoshop and Generative Fill. This is enough time to complete a real project and evaluate whether the capability justifies a subscription.
After the trial: Photoshop subscription starts at $20.99 per month (individual app) or included in full Creative Cloud at $54.99 per month.
For Generative Expand specifically (no Photoshop required): Adobe Firefly’s browser tool at firefly.adobe.com includes Generative Expand for photos without requiring a Photoshop subscription. Free Adobe account, 25 monthly credits.
How to Use Adobe Generative Fill Step by Step
Use Case 1: Remove an unwanted object
Step 1: Open your image in Photoshop.
File > Open, select your image. Ensure you’re working on the Background layer or a duplicate of it.
Step 2: Select the unwanted object.
Use the Object Selection Tool (W) and click on the object you want to remove. Photoshop AI automatically selects the object’s boundary. For complex subjects, refine with the Quick Selection or Lasso tool additions.
Step 3: Expand your selection slightly.
Go to Select > Modify > Expand > 5 to 10 pixels. This slight expansion ensures the generated fill covers the subject’s edges cleanly.
Step 4: Click Generative Fill in the Contextual Task Bar.
The floating toolbar at the bottom of your canvas shows “Generative Fill” when an active selection exists. Click it. Leave the text field empty for object removal (empty prompt tells Photoshop to fill with background rather than add new content).
Step 5: Click Generate.
Photoshop generates 3 variations on a new Generative Layer. Browse them in the Properties panel. Choose your best result.
Use Case 2: Add a new element to a scene
Step 1: Make a selection where you want to add content.
Use the Lasso tool to draw a selection in the area where you want to add a new element. For adding a person to a scene, select the empty space area where they should appear.
Step 2: Click Generative Fill and type your prompt.
Click Generative Fill, then type a description of what you want to add: “A golden retriever sitting by the window, natural light, matching the style of the existing scene.”
Step 3: Generate and select.
Generate 3 variations. Choose the one that integrates best with the existing image.
Use Case 3: Extend the canvas (Generative Expand)
Step 1: Use Crop tool to expand the canvas.
Select the Crop tool (C), drag the crop handles beyond the current image edge to add canvas space. Click the checkmark without filling. The added area is transparent.
Step 2: Select the new empty canvas area.
Use Select > All, then Select > Inverse to select only the empty added canvas area. Or manually select with the Rectangular Marquee tool.
Step 3: Apply Generative Fill to the extended area.
Click Generative Fill with an empty prompt. Firefly extends the image content to fill the new canvas area, matching the style and content of the existing image.
Pro Tip: For landscape extension especially, use Generative Expand on both sides simultaneously. Expand your canvas equally left and right, select all empty areas (both sides) in one selection using Shift to add to selection, and fill both sides in a single generation. The AI maintains better compositional coherence when generating both extensions at once.
[Image alt text: Three stages of Adobe Generative Fill showing original image, selection made on unwanted object, and final clean fill result 2026]
Generative Fill vs Generative Expand
These are related but distinct features with different primary use cases.
Generative Fill: Works within the existing image boundaries. Replaces or adds content inside a selection within the current canvas. Best for: object removal, adding elements to existing scenes, replacing background areas within the frame, retouching specific regions.
Generative Expand: Works outside the current image boundaries. Extends the canvas and fills the new area with AI-generated content matching the existing image. Best for: changing aspect ratio without cropping, adding context around a close-cropped subject, extending background to create negative space for text overlay.
Both use the same Firefly model and work through the same Generative Layer system. The distinction is directional: Generative Fill fills within, Generative Expand fills outward.
Advanced Generative Fill Techniques
Stack multiple Generative Fill layers for complex edits.
Each Generative Fill operation creates its own Generative Layer. For complex image changes, make them sequentially rather than simultaneously. Remove one element first, check the fill quality, then move to the next. Stacked Generative Layers give you independent control over each change.
Use Generative Fill for lighting adjustments.
Select the shadow area of an image and use a prompt like “brighter area with consistent lighting” to literally add fill light to a shadow region in post-production. This isn’t technically perfect, but for moderate adjustments it produces useful results.
Combine with manual retouching.
Generative Fill output is a starting point, not always a perfect finished result. After selecting your preferred variation, use standard Photoshop retouching (Clone Stamp, Healing Brush) to refine any edges or areas where the fill isn’t quite seamless. The combination of AI generation and manual refinement produces professional results faster than either alone.
Use Generative Expand for thumbnail and social media resizing.
If you have a 16:9 image you need to use as a 9:16 vertical, use Generative Expand to extend the top and bottom. The AI fills the extended areas with contextually appropriate content, giving you a usable vertical composition without cropping the original subject.
Apply to RAW files for maximum quality.
Generative Fill applied to Camera RAW or high-resolution TIFF files produces better results than applying to compressed JPEGs. Process your RAW files first, then apply Generative Fill at full quality before any compression export.
For more on Adobe’s full AI tool suite including Firefly Video and Neural Filters, see our Adobe Firefly tutorial.
Common Mistakes to Avoid
- Leaving the text prompt blank when you want to add specific content. Blank prompts tell Generative Fill to remove and replace with background. If you want to add a specific new element (a person, a tree, a product), you must include a text prompt describing it. Blank = removal/fill. Prompt = addition/replacement.
- Not checking Generative Layer output at 100% zoom. The three generated variations look similar in the thumbnail view. Always click through each option and view at 100% zoom to see actual edge quality and detail accuracy before choosing.
- Using Generative Fill on very small selections. Very small selections (under 50×50 pixels) don’t give the AI enough context to generate coherent content. If you need to fill a very small area, use the Healing Brush or Clone Stamp instead.
- Over-relying on the generated result without manual refinement. Generative Fill is excellent but not always perfect on complex edges. A quick pass with the Healing Brush on edge areas after generation often takes 2 to 5 minutes and significantly improves the final result.
- Not exploring all three generated variations. The first variation is rarely the best one. Always view all three options before choosing. The third is often the most natural. Occasionally regenerating (clicking Generate again) produces a fourth option worth comparing.
FAQs
Q: Is Adobe Generative Fill free to use?
A: Adobe Photoshop’s 7-day free trial includes full Generative Fill access. After the trial, a Photoshop subscription is required ($20.99/month). Generative Expand is available in the free Adobe Firefly browser tool (firefly.adobe.com) with 25 free credits per month. A full Photoshop subscription is the most feature-complete option.
Q: What is the difference between Generative Fill and Content-Aware Fill?
A: Content-Aware Fill (older technology) analyzes surrounding pixels and uses pattern matching to fill selected areas. It works well for removing simple backgrounds but struggles with complex content. Generative Fill uses AI to generate entirely new content informed by a text prompt, producing more natural results especially for complex subjects and adding new elements.
Q: Can Generative Fill remove people from photos?
A: Yes. Select the person using the Object Selection Tool, expand the selection slightly, and apply Generative Fill with an empty prompt. For people in front of simple or consistent backgrounds, results are typically very good. For people in complex scenes or tightly integrated with other subjects, results require manual refinement.
Q: Is Generative Fill content commercially safe?
A: Yes. Adobe Generative Fill uses the Firefly model trained on licensed Adobe Stock content and public domain material. Adobe explicitly states that outputs are commercially safe for use in client work and advertising.
Q: How many variations does Generative Fill produce?
A: Each Generative Fill operation produces exactly 3 variations stored as separate states in the Generative Layer. You can click Generate again on the same selection to produce 3 more variations, giving you up to 6 options before choosing your best result.
Wrap-Up
Adobe Generative Fill in 2026 is the most practically useful AI tool in Photoshop. Object removal that previously required 30 minutes of manual retouching now takes 2 minutes. Canvas extension for format adaptation takes 5 minutes instead of needing a reshoot.
Use the free 7-day Photoshop trial to work through a real project. If Generative Fill saves you the time it promises on that project, the subscription calculus becomes straightforward. More Adobe and AI creative tools at msyeditor.com.
