Pipelines
Corner Erase: remove watermarks from an image corner
Erases a chosen corner of every image in your batch — and optionally fills it back in to look natural. Built for hiding watermarks like the Gemini AI badge.
Corner Erase wipes out a corner of your image (top-left, top-right, bottom-left, or bottom-right) and optionally fills it back in so it doesn't look like there's a hole there.
It's built for one job: removing watermarks that sit in a corner. Like the Gemini AI watermark, the small "made with X" badges some AI tools add, or any consistent corner mark across a batch.
Why this step matters
Lots of free tools add a small watermark or logo to the corner of every output image — often as their way of saying "made with our tool." If you're using those images for your designs or product images, the watermark needs to go.
Doing it by hand in Photoshop on 200 images is hours of work. Corner Erase does the same job in one pipeline step.
⚠️ Only use this on images you have the right to remove the watermark from. Some tools allow watermark removal in their paid tiers; others don't. Check before you batch-erase.
How to use it
- Add Corner Erase to your pipeline.
- Leave Fill Mode on Patch (the default) with Patch Mode: Auto. It finds the AI badge on its own — the Gemini watermark (bottom right) and the Kimi watermark (bottom left) — and skips images that don't have one. No corner or size to set.
- Toggle the tool off and on to compare: off shows the watermark, on shows it gone, on every image in the batch.
- If Patch isn't right for your images, switch Fill Mode to Transparent, Color or Mirror, then pick the Corner and the Width/Height of the area to erase.
The settings
Basic
| Setting | What it does |
|---|---|
| Fill Mode | How to clear the corner. Four choices below. Default: Patch. |
| Corner (Transparent / Color / Mirror) | Which corner to erase: Top Left · Top Right · Bottom Left · Bottom Right. Default: Bottom Right (where most watermarks sit). |
| Width / Height (0–25%, Transparent / Color / Mirror) | Size of the erase area as a percentage of the image. Default: 10% each. Push them too far and you'll start to see distortion. |
Fill modes
| Mode | What it does | When to use |
|---|---|---|
| Patch (default) | Removes the small AI generator badge (like Gemini's) and repairs the area. Auto finds the badge itself and skips images without one; Custom removes at the exact size and margins you set. | The best option for AI watermarks. |
| Transparent | Makes the corner fully see-through. | When you'll run background removal afterward and don't want the watermark interfering. |
| Color | Fills the corner with a solid color you pick (default white). | When you need to match a specific background color. |
| Mirror | Copies texture from the image's edge into the corner with some variation. | Textured backgrounds where a solid fill would show. |
Patch → Custom settings
| Setting | What it does | Default |
|---|---|---|
| Strength (25–200%) | How strongly the badge is removed. | 100% |
| Badge Size (16–256 px) | Size of the badge to remove. | 96 |
| Margin Right / Margin Bottom (0–512 px) | Distance of the badge from the image's right and bottom edges. | 64 / 64 |
Mirror settings
| Setting | What it does | Default |
|---|---|---|
| Sample Depth (10–50) | How deep into the image to look for sample pixels. | 30 |
| Variation (0–10) | How much to randomize the fill so it doesn't look like an obvious copy-paste. | 4 |
| Blend Depth (0–5) | How softly to blend the fill into the surrounding image. | 2 |
What to read next
- [Color Removal V2](color-removal) — to remove a solid background color across the whole image instead of just corners
- [Speckle Remover](speckle) — similar pixel-cleanup concept for stray dots
- [Trim](trim) — for removing empty edges after Corner Erase
Tips
- Start with Patch → Auto. It handles AI badges like Gemini's on its own. Use Transparent, Color or Mirror for other corner marks.
- In Transparent / Color / Mirror, make the erase area slightly bigger than the watermark. 10% × 10% covers most corner watermarks. Going much bigger starts to distort the image.
- For consistent watermark batches (every image has the same watermark in the same spot), set up Corner Erase once, save it as a preset, run it on every batch.
- Combine with other tools — Corner Erase + Color Removal V2 in the same pipeline can both clean a watermark AND remove the background in one batch run.
Things Corner Erase doesn't do
- Outside Patch → Auto, it can't find watermarks for you. You tell it which corner; it erases that corner. If the watermark moves between images or is in the middle of the image, this tool can't help.
- Transparent / Color / Mirror aren't selective. They erase everything in the corner area you defined, not just the watermark. If your corner has important design elements, those go too.
- It doesn't work on watermarks in the center or middle-edge of images. This is corner-only by design. For other areas, you'd need to use a different image editor.
- Only Patch → Auto detects anything, and only the AI generator badge. For everything else you define the area.