Instructions
Point your browser to an online watermarking service. A quick search provides many free, straightforward services.
Upload the image you wish to watermark using the "Choose File" button on the service's main page. Some services allow you to batch watermark, or provide an inscription for many different images at once.
Type in the text you wish to have digitally inscribed on your image into the provided box.
Customize the appearance of the text (embolden, italicize, underline). Depending on the service you're using, customization options may vary.
Export the image for use by clicking "Save" or "Done."