PDF Redaction in Rust — Why "Delete the Text" Isn't Enough

The article warns that drawing black boxes over PDF text is not real redaction if the underlying content remains in the file.

It explains that true redaction must remove sensitive data from PDF content streams and object structures, not just hide it visually.

A Rust-based approach using libraries like lopdf is described as a way to perform deeper document edits for secure data removal.

The piece highlights a common document-security flaw and why developers need to delete recoverable PDF content before sharing files.