Adding a watermark to your photos in Picasa can protect them from being used by other people without your consent. The watermark is added to the bottom right corner of the photo in white text. To add watermarks, select the watermark option when exporting the photos from Picasa into a folder on your hard disk. The software doesn't change the original photos; only the exported images contain the watermark.

Step 1

Launch Picasa, select the folder that contains the image you want to watermark, select the image, click "File," and then choose "Export Picture to Folder" from the menu to open the "Export to Folder" window.

Step 2

Check the "Add watermark" box, and then type the watermark into the field below the box.

Step 3

Click the "Browse" button, choose the folder where you want to store the watermarked image, and then click "Export."