GUEST ESSAY: Going beyond watermarks to protect sensitive documents from illegal access
The Last Watchdog
JANUARY 6, 2022
They also enrich documents with metadata and place them in crypto-containers, access to which is only granted by permission. However, all of these solutions are powerless when it comes to photographing a document with a smartphone and compromising printed copies of documents. Demyanchuk. Yes, they are cheap to apply.
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