Getting Started with New Features in the Midjourney Web Image Editor: Erase/Restore and Canvas Expansion

Midjourney has recently made the web-based image editing experience feel more like a true “editor”: you can jump straight into the editing interface from a work’s page, erase/restore specific areas, and expand the canvas by adjusting size and aspect ratio. This article focuses only on how to use these new Midjourney features and what specific problems they’re best for—so you don’t waste generations by repeatedly rerolling images.

Enter the New Editor in One Click: Start Editing from the Work Page

In the Midjourney web version, open any generated image and click “Edit” to enter the new editing interface. The significance of this entry point is that you don’t need to reorganize an entire prompt; you can simply do a second round of fine-tuning around the existing result. For users who often need to fix hands, clean up edges, or swap backgrounds, this change from Midjourney is crucial.

Erase and Restore: “Mark the Problem” First, Then Let Midjourney Fill It In

In the new Midjourney editor, the two most commonly used tools are “Erase” and “Restore.” In practice, it’s recommended to zoom in first, use Erase to paint over the area that needs to be redone (such as extra objects, distorted details, or stray/unwanted text), and then submit a generation so Midjourney redraws that region. If you overpaint, use Restore to brush back the parts that shouldn’t be changed, which can significantly reduce rework.

Canvas Expansion and Aspect Ratio Changes: Fix the Hard Problem of “Not Enough Composition Space”

Midjourney lets you expand the canvas by adjusting size and aspect ratio, which is ideal for turning a more square-ish image into a wide banner cover, a vertical poster, or one with extra room for layout. The approach is to decide on the target ratio first, then extend the canvas in the direction you need while keeping the subject within a safe area. For scenarios like e-commerce key images and video thumbnails, Midjourney’s canvas expansion saves more time than “regenerating in the same style.”

Transformations and Ongoing Organization: Turn “Editing Images” into a Repeatable Workflow

During editing, you’ll also see “Transform” capabilities, which help with further processing alongside canvas expansion or local adjustments—useful for iterating on the same image step by step until you reach the final result. On the other hand, Midjourney’s website is also strengthening its work-management approach, for example moving toward organizational features like “Favorites,” making it easier to archive and reuse by project. It’s recommended to build a consistent workflow in Midjourney: set the composition first → erase problem spots next → expand the canvas and leave room for layout last. This will be more reliable and efficient than blindly “gacha-style” rerolling.