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PDF redaction that actually works
A black rectangle hides text without deleting it. Where PDFs keep the original content, how to remove it properly, and four ways to verify a redacted file.
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Metadata hygiene, redaction mistakes and where files get processed.
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What photo metadata reveals: Exif, IPTC and XMP
The location, timestamps, serial numbers and embedded thumbnail inside a photo, what platforms really strip, and how to verify a file is actually clean.