When should you watermark your ID?

We share our identity documents constantly: to rent a home, open a bank account, pass a KYC check, sign a contract. Each time, a copy of your passport or ID leaves your hands — and you lose all visibility over where it goes next.

A copy of an ID is powerful. It can be used to open accounts, take out credit, or impersonate you — sometimes long after you'd forgotten you ever sent it. The fix is simple: before sharing, add a clear watermark that ties the document to one specific purpose and date. If that copy ever resurfaces somewhere else, it's visibly out of context and far harder to misuse.

Kavrylo does this in seconds, for free, and entirely in your browser — your document is never uploaded. Below are detailed guides for the situations people ask about most.