How to redact or blur content from a whiteboard photo before sharing.

## The iOS Markup method (fastest)

1. Open the photo in the Photos app.
2. Tap Edit (top right).
3. Tap the pen/marker icon to open Markup.
4. Select the rectangle shape or filled pen.
5. Set the color to white or black.
6. Draw over the area you want to hide.
7. Tap Done and save.

This is quick for one or two areas but tedious for many. The result is a flattened image — the covered content is visually hidden.

Caution: Partially transparent fills or low-opacity colors don't fully hide content. Use fully opaque shapes — black or white filled rectangles work best.

## Dedicated redaction apps

For more professional needs:

• Skitch (Evernote): simple annotation and redaction on iPhone
• Annotate and similar PDF/image annotation apps have black-box redaction tools
• TouchRetouch can remove specific elements if the content is isolated

## The limitation of image redaction

Digitally painting over an image doesn't destroy the underlying pixel data in all cases. If someone receives the image and uses photo editing tools to adjust exposure and contrast on the redacted area, under some circumstances faint underlying content can be revealed — especially if you used a light-colored or semi-transparent overlay.

For genuinely sensitive content, don't rely on image-level redaction.

## The better approach for sensitive content

Use BoardSnap's text output instead of the photo. Copy only the action items or summary sections that are appropriate to share. Leave out sensitive context. Text doesn't have hidden pixel layers — what you send is exactly what the recipient sees.

For regulated industries (healthcare, finance, legal), consult your compliance team on approved redaction methods before sharing any partially redacted document.