LLS Simple Image Composite

Sometimes generation isn't the hard part - the hard part is putting one image on top of another at the right position, size, and angle. LLSSimpleImageComposite is the "composite an overlay onto a background" node, and it reads like the wish list for that exact job: translation, scale, rotation, opacity, alpha-aware blending, and a couple of anchor modes. It's the kind of node you reach for when a product shot needs a logo stamped on it, a sticker needs placing, or a face needs pasting back after an edit pass.

The output canvas is always the background_image's size - that's the frame of reference for everything. The overlay_image gets transformed according to your settings and composited on top; anything that pokes outside the background is clipped. If the overlay has an alpha channel, it's honored during blending.

The inputs that matter

• x_offset / y_offset - where the overlay lands, in pixels.
• anchor_mode - top_left or center. This is your reference point for positioning: center mode makes x_offset/y_offset relative to the overlay's center, which is the sane way to think about "put this in the middle."
• scale (0.01–32, default 1) and rotation (-360 to 360) - with keep_aspect (on by default) so scaling never distorts.
• opacity (0–1) - how strongly the overlay shows.
• rotation_origin_mode - independently controls whether rotation spins around the overlay's top-left or center. Separating it from anchor_mode is a genuinely useful touch: position by center, rotate by top-left, no compromises.
• blend_mode - currently only normal, which is honest about scope.

The single output is output_image. Wire it into a Preview or Save Image.

Where it fits

The pack's own docs frame it for logos, stickers, and placing local elements - and it doubles as the manual composite step at the end of a repair workflow when you want pixel control over a paste. The README notes the node prefers Load Image-style upstream sources for its in-node live preview, so keep that in mind when building the graph.

Installing it

cd ComfyUI/custom_nodes
git clone https://github.com/Gin3601/LLS-node
# restart ComfyUI

Or ComfyUI Manager → search "LLS-node". Pure tensor compositing, no models to download.

Gotchas

If you composite an opaque overlay, opacity is your only blending control - there's no mask input on this node, so feathered blending means feathering the overlay's alpha beforehand. And because the background defines the canvas, feeding a small background under a large overlay gets you clipping, not auto-resize; size the overlay (or the background) first. For beginners the biggest win is remembering anchor_mode = center exists - trying to center something by pixel arithmetic with top-left anchors is a one-way ticket to frustration.