Midjourney Web Image Editor New Interface: Hands-on Tests of Erase/Restore and Canvas Expansion

Midjourney’s web version has recently made its “image editor” feel much more like a complete retouching workstation: from local erasing to restoring details, and from expanding the canvas to transforming composition, it basically covers the most commonly used actions in everyday secondary creation. This article follows the real usage workflow to clearly explain what the new interface can do and how to use it.

What key points were updated in this Midjourney image editor update

The entry to the new Midjourney image editor is more straightforward: click “Edit” on an image to enter the new interface, without having to hunt around for features. The core changes focus on three areas: local edits (erase/restore), canvas capabilities (aspect ratio and proportion adjustments, canvas expansion), and the overall reconstruction room enabled by “Transform.”

For creators who need repeated fine-tuning, this kind of editing capability saves more time than “rerolling for a new image,” and it also helps maintain visual consistency.

How to enter Midjourney’s web editing interface (the shortest path)

On the Midjourney web app, open a work you’ve already generated. After selecting the target image, click the “Edit” button near the image to enter the brand-new image editor interface. Once inside, don’t rush to change the prompt—it's recommended to first confirm the canvas ratio and crop area to avoid mismatches between erased regions and the composition later.

If you’re choosing images across multiple jobs, enlarge or set the one you want to edit as the main image first; the experience will be much smoother.

“Erase” and “Restore”: local edits finally feel smooth

In Midjourney’s image editor, “Erase” is suitable for removing unwanted elements such as extra passersby, stray props that break continuity, or background specks; after erasing, pair it with prompts to have the system repaint that area. In contrast, “Restore” is more like an undo remedy: if you erased too much or want the original details back, just brush them back with Restore.

A practical tip is to “take small, fast steps”: don’t erase too large an area at once; start with edges and small blemishes to significantly reduce the chance that the inpainting goes off track.

Canvas expansion and aspect ratio adjustment: “growing” composition space

Previously, turning a portrait image into a landscape one often meant regenerating from scratch. Now Midjourney supports expanding the canvas by adjusting proportions and aspect ratio, essentially extending new space around the original image. This is useful for leaving negative space for posters, creating horizontal covers, or expanding a “half-body portrait” into an “environmental portrait.”

A helpful habit is to decide the final use first (e.g., a 16:9 cover or a 4:5 vertical format) and then expand the canvas; otherwise, if you expand first and crop later, it’s easy to waste valuable detail.

How to use “Transform” more reliably: change structure less, change style less

Midjourney’s “Transform” is better suited to adjustments at the overall structural level—such as centering the subject, improving perspective, or completing the background—rather than making drastic style switches. To stay stable, keep prompts focused on “composition and relationships between elements,” such as completing the scene, adding background space, or adjusting the viewpoint, instead of stuffing in too many style keywords.

If your goal is to maintain consistency for a character or product, it’s recommended to change only one variable each time: either transform the composition or modify local content—don’t change everything at once.