◆ Photoshop · generate

Seamless Background Extension

Extend the canvas around the layout to meet the 5 mm bleed requirement by generating extra background artwork with sea…

2heights
2tasks
1roles do it
See the prompt↓More generate workflows

The same job, four prompts

do it · improve it · decide · become
AExecute — “help me do it”Extend the canvas around the layout to meet the 5 mm bleed requirement by generating extra…+
Extend the canvas around the layout to meet the 5 mm bleed requirement by generating extra background artwork with seamless content-aware fill, match texture and color to existing artwork, and save the extended file as a press-ready TIFF.
when the reply comes backPush once: ask it to sharpen the weakest part, and to say what it assumed.
BImprove — “do it better”Before exporting for plates, make the bleed extension reliable—show a crop mark proof with the…+
Before exporting for plates, make the bleed extension reliable—show a crop mark proof with the new bleed, provide a 1:1 crop of the filled edge to confirm seamless match, note any repeated patterns that might reveal the fill, and recommend reshoot areas where the fill fails.
when the reply comes backPush once: ask it to sharpen the weakest part, and to say what it assumed.

How to do it

the tool · the steps · what to avoid
The tool
Generative Fill

Generative Fill uses AI to add, expand, or remove content from your images based on text prompts.

  1. 1

    Open your image by selecting File > Open.

  2. 2

    Select the area you want to transform using a selection tool.

    Best practiceFor expanding the canvas, use the Crop Tool to extend the image boundaries first.

  3. 3

    Click the Generative Fill button in the Contextual Task Bar.

    NoteYou can also access it from Edit > Generative Fill, or Select > All then Edit > Generative Fill.

  4. 4

    Type a prompt describing the object or scene you want to generate in the text-entry field.

    NoteYou can leave the prompt field empty to have Photoshop generate content based on the surrounding image.

  5. 5

    Click Generate.

  6. 6

    Review the generated variations in the Properties panel.

  7. 7

    Select your preferred variation from the options.

  8. 8

    Save your image by selecting File > Save As or File > Save a Copy.

Generative Fill creates new content on a separate generative layer, allowing non-destructive edits.

Generative Fill functionality is integrated within Photoshop and is not directly exposed as a standalone API for external automation.

Glossary

words on this page
Contextual Task BarA floating bar that provides relevant tools and actions based on the current selection or task.ExampleWhen you select an object, the Contextual Task Bar appears with options to duplicate or delete it.
Content-Aware FillA feature that intelligently removes unwanted objects and fills the area with matching content.ExampleYou use Content-Aware Fill to seamlessly remove a person from the background of a photo.
Generative FillAn AI-powered feature that creates new image content based on text prompts or existing selections.ExampleUsing Generative Fill, you type 'add a sandy beach' to extend the ocean scene in your image.
Sky ReplacementAn automated feature that intelligently replaces the sky in an image with a different sky.ExampleWith Sky Replacement, a dull gray sky in your photo can be instantly swapped for a vibrant sunset.
Save a CopyTo save the current document as a new file, leaving the original document open and unchanged.ExampleYou can 'Save a Copy' of your edited photo to share, while keeping the original file untouched.

The real tasks

1 of them
Generate extra canvas around a layout and extend background artwork seamlessly to match press bleed requirements.

Who does this

1 roles
Prepress Technician

Questions people actually ask

with the jobs and tasks they touch

Use the Select Sky tool to isolate the sky area, then replace it with a more vibrant image or create a gradient. This saves time and improves the overall look fast. For example, replace a gray sky with a sunset photo to boost the mood.

You should prioritize this when the flat sky kills the mood or doesn’t match the campaign’s tone. For a product launch or social media post, a lively sky can make the scene more appealing before going live.

Match the new sky’s angle, color, and lighting to the original scene. Use the adjustment layers to tweak brightness, contrast, and hue. For example, add a sunset sky with warm tones for an evening scene.

Trying to replace the sky with a single click without matching lighting or perspective. This can make the new sky look unnatural or out of place. Always adjust levels and blend carefully.

A graphic designer or retoucher usually does this when preparing images for clients or marketing. They fix dull skies to make scenes more compelling and ready for publication.

AI tools can automate sky replacement, saving time. Still, you need to manually adjust blending, perspective, and lighting to keep a realistic look. AI helps but can’t fully replace careful editing.

Sky replacement involves swapping out the background sky, while extending the canvas adds space for more sky or background detail. The latter is useful if you want a wider horizon or more sky in your composition.