Partial vector redaction previously hid covered areas with clipping
(`clip_out`, `W/W*`) while retaining the complete original drawing instructions
and painting operators in the content stream. This allowed recipients
to recover confidential outlined text or other vector drawings from
supposedly redacted documents.
This change removes vector paths that intersect redaction marks completely
and refuses partial clip retention, ensuring no confidential geometry is
preserved behind clipping. Report counts are updated to record removed paths.
Dylan M. Taylor
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