How to use Visual Redaction

Load a PDF and wait for page thumbnails to render.
Click a page to open the full-size redaction canvas at 200 DPI.
Click and drag to draw red rectangles over content to redact. Click an existing rectangle to remove it.
Review ALL pages — redacted pages show red overlays, but every page gets rasterized on burn.
Click Burn Redactions. This is permanent and irreversible. The output replaces every page with a flat image.

Tips

Every page is rasterized at 200 DPI on burn, not just pages with redactions. This prevents metadata analysis from revealing which pages were redacted.
Draw rectangles slightly larger than the target content. Rasterization at 200 DPI can shift pixel boundaries by 1-2px.
After burning, open the output PDF, zoom to 200%, and verify each redacted area is fully black. This is the critical verification step.
Output file size will be larger than the original. A 10-page document at 200 DPI produces roughly 5-15MB depending on content complexity.
For maximum privacy, run the Paranoid Scrub after redaction to strip any remaining metadata from the rasterized output.
If quota is reached, wait for month reset or upgrade for unlimited usage.

Redaction is irreversible by design. There is no undo after burning. The original text under redacted areas is destroyed, not hidden.
Output file size increases significantly because every page becomes a raster image. Expect 0.5-1.5MB per page at 200 DPI.
Text in the output PDF is not selectable. If recipients need searchable text, they would need to OCR the result.
Documents over 200 pages are capped for browser memory safety. Split first, then redact sections individually.
This is visual redaction only. It does not produce PDF redaction annotations compatible with Adobe's redaction workflow.
It does not replace legal, compliance, or incident-response workflows.