Overview
Bulk Watermark adds your logo to every image in a batch. Processing runs locally in the browser; you download one ZIP with watermarked PNGs.
Step-by-step
- Open Bulk Watermark.
- **Upload your logo** in the Watermark logo card (PNG with transparency works best). A preview appears below the compact drop zone.
- Under **Placement**, choose a position:
- •**Top Left**, **Top Right**, **Bottom Left**, **Bottom Right**, or **Center**
- •**Custom** — drag the logo on the live preview and resize it with the corner handle
- Set **Opacity** (1–100%). The preview updates in real time.
- In the **Images** card, add photos or a ZIP (up to 20 files free, 100 Premium).
- Click **Start processing**, then **Download ZIP**.
Custom placement
When you select **Custom**, the preview panel becomes interactive:
- •**Drag** the logo to move it anywhere on the sample photo
- •**Resize** using the handle on the bottom-right corner of the logo
- •The same relative position and scale apply to every image in your batch (scaled to each file's dimensions)
Limits and privacy
- •Free: 20 images per batch · Premium: 100
- •Logo and images are processed on your device — we do not store them on our servers