Frequently Asked Questions
Answers to common questions about Simple Watermark
Are my photos uploaded to any server?
No! Absolutely zero photos or logos are uploaded. Simple Watermark runs entirely inside your browser's local memory via Canvas APIs.
Can I watermark iPhone HEIC photos?
Yes! Simple Watermark converts HEIC and HEIF photos locally in your browser so you can watermark Apple photos directly without converting beforehand.
Is there a limit on the number of photos?
No artificial limits. You can watermark dozens or hundreds of photos in a single batch, completely free.
Does the tool add its own watermark?
Never. Simple Watermark never adds any branding or promotional watermark of its own to your photos.