Mark What You Want to Change on Your Image

Last updated: October 20, 2026

Before you start

  • The image is in your library, or already on a session board.

  • Annotate appears on the image when the model reads marks. If it is not there, open the model menu and pick a model that reads marks.

  • The edit costs Creative Units. The cost follows the model, the same as any prompt edit. Marks do not add a separate price.

Steps

  1. On an empty board, open Tools & apps and choose Prompt edit image. Add the picture under Image to edit.

  2. On that image, select Annotate. The tooltip reads Annotate what to change where. The editor opens on Annotate.

  3. Drag across an area to draw a box. The note opens under the mark. The placeholder reads What to change here. Write what should happen there. With no note, the mark points at the spot and the prompt says what the change is.

    Clip pending. Step clip for this draw, from the same scenario. Paste that step block here, then delete this paragraph.

  4. Make a short drag to drop a pin on a second spot. A click on the image draws nothing. Select the pin and choose Remove what is marked. The placeholder then reads What to remove. Delete mark removes the mark itself. Click Apply annotations before you leave this image. Marks you have not applied are dropped when the next image's editor opens.

  5. Add a second picture under Reference image. Select Annotate on it, mark the part to take, write the note, and click Apply annotations. Annotate is on a reference when the model reads marks there. A model that reads boxes only does not offer it on a reference. Its hint reads Drag to mark an area.

  6. In the box whose placeholder is Describe the change you want, describe the change and what must stay. Click Edit image.

  7. When the new file lands on the board, open it. It sits in the viewer beside the original.

What a mark asks for

Change the marked spot

This is the mark a drag draws. A box covers an area. A pin marks a point. Each mark is numbered in the order you draw it. The note says what should happen there.

Remove what is marked

Select the mark and choose Remove what is marked. On the image you are editing, the model is asked to take that out and fill the area so it matches what is around it. On a reference image, it is asked to leave that part out of the result. Choose the control again to go back to a change.

Result

The edited image is a new file on the session board. Open it and it sits in the strip on the left of the viewer beside the original, newest first, so you can switch between them. The original is unchanged. The viewer does not open on its own. The marks stay on the image you edited, so the next pass can use them. They are meant to stay out of the picture itself.

Production tips

  • Mark a reference when the model reads marks on references. Say in the prompt what to take from that image. One note per mark holds the edit to that spot.

  • Name what must stay the same in the prompt: pose, silhouette, framing, a transparent background, the art style. The marks say where. The prompt says what, and what must survive.

  • Give a colour as a hex value in the note or the prompt (#C8102E) when the result has to match a palette.

  • Undo (⌘Z), Redo (⇧⌘Z) and Clear marks sit on the bar along the bottom of the editor. Those shortcuts are the Mac labels on the bar.

  • A new frame taken from a video or a 3D model starts with no marks. Mark the frame you are sending.

  • A model that reads boxes only shows the hint Drag to mark an area. Drag across the area on the image you are editing. A short drag does not leave a pin on that model.

  • Changing one painted region with a brush is a different job. Use Inpaint part of an image.

  • Run the same marks and the same prompt on each asset in a set, or put the edit in a workflow, when the variants have to match.

If something goes wrong

  • The result ignored the marks. Annotate was not on the image, so the model edited the clean picture. Open the model menu and pick a model that reads marks. When the form shows This model doesn't read annotations. Your marks are kept but not sent., choose Switch to and the model name on that button. Your marks stay on the image.

  • The edit stopped because of a mask. The message is This model reads a mask as marks on the image too. Use either a mask or annotations, not both. Clear the mask under Crop & rotate, in Mask, with Clear mask, or clear the marks, then run the edit again.

  • The edit stopped and named a reference image. The message starts This model takes marks as boxes on the image it edits only. Marks on a reference cannot be sent. Clear those marks, or pick a model that reads marks on references.

  • The edit stopped because there are too many images. Each marked image sends an extra copy that uses a reference slot. Remove a reference, or clear the marks on one image, until the run fits.

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