🔖 S42 CutFlow Watermark

If you're generating video in ComfyUI for anything beyond a personal toy, eventually you need to brand it - and the last thing you want is to export a render, open an NLE, add a watermark, and re-encode. S42CF_Watermark burns text or an image logo straight onto your IMAGE batch before it ever leaves the node graph. It's deterministic, batch-safe, and about as simple as these things get.

It's one of the Text & Overlays nodes in S42 CutFlow, and it's the end-of-chain stamp: generate → edit → watermark → save. Same node handles the "I'm sending this preview to a client" job via its tile mode, which is the anti-theft classic.

How it works

Everything is rendered with PIL. In text mode it draws your string at font_size × scale with proper anti-aliasing and drops it onto each frame. In image mode it takes the first frame of your connected watermark_image - and if that image has an alpha channel it's preserved, so a transparent PNG logo stays transparent instead of sitting in a white box.

The six position options cover the corners, center, and tile. Tile is the interesting one: it repeats the watermark across the whole frame at margin spacing - the standard way to make preview footage useless for reposting while keeping it viewable.

Inputs that matter

• clip - the footage.
• mode - text or image. Text is the zero-setup path; image is for a real logo.
• text - what gets drawn (default "© 2026").
• position - corners, center, or tile.
• opacity - 0.3 default; 0.1–0.2 for "I want to see it but it shouldn't distract," up toward 0.8 if you genuinely want it to annoy.
• scale / font_size / margin - sizing and placement.
• watermark_image (optional) - only used in image mode; first frame only.

Outputs

clip (watermarked frames) → your video combine node. frame_count is a passthrough you can ignore unless downstream nodes need it. info is the summary string every CutFlow node emits.

Installing it

Same as the rest of the pack: ComfyUI Manager → search S42 CutFlow → install, or git clone https://github.com/GeekyGhost/S42-CutFlow into ComfyUI/custom_nodes/, install requirements, restart. PIL ships with ComfyUI, so no extra dependencies for this node.

Gotchas

Two small traps. First, image mode with nothing connected silently falls back to text rendering - the node doesn't error, it just draws your text string instead, which is easy to miss if you were expecting a logo. Second, it uses only the first frame of watermark_image, so don't feed it an animated badge expecting motion. And a workflow tip: since every node here is deterministic, one watermark config stamps a hundred renders identically - perfect for batch jobs, annoying if you forget it's in the chain and "can't figure out where this © came from."