Super easy way to put or watermark on a photo in bulk?

If you need to add watermarks to photos using a dedicated desktop interface, Image-Watermarker is a community-driven, open-source desktop application developed using Python and PyQt5.

The software can batch-watermark photos in an entire directory, making it undoubtedly the best tool for users who want to learn how to put watermark on a photo without relying on complex scripts or expensive commercial software suites.

How to put Watermark on a Photo

1. Download the software from GitHub
2. Import a transparent logo in .png format or enter custom text
3. Choose to add a watermark to a single corner of the photo, center it, or apply a repeating mosaic pattern across the entire photo
4. Adjust the opacity slider and zoom controls in real time
5. You can check the metadata/date checkbox
6. to automatically stamp the capture date in the corner of the photo and batch-process an entire folder.

Pros and Cons

• The software offers a clean, intuitive dashboard designed for batch watermarking. It supports text, image logos, and repeating tiled patterns.
• As an open-source desktop application developed in Python, it requires users to download and install it locally, so it may be slightly less user-friendly than web-based tools.

Notes:

• Be sure to use a .png file with a transparent background for your logo to avoid unsightly white borders appearing on your photos.
• Use the real-time opacity slider with caution; setting the watermark opacity too high can detract from the photo’s aesthetic appeal, while setting it too low may not effectively protect against AI removal tools.

At least it works well for me—I often use the software to add watermarks to my photos.