Mask & Mosaic Demo

Redact document regions with editable masks and local mosaic pixelation.

Image upload

Layout mode

Fixed masks target common fields in the synthetic sample document.

Shape

Brush size Block size

Mosaic edits are committed into the base image pixels when a stroke is applied.

Load the synthetic document sample or upload a local image.

ImageEmpty

ToolNone

Masks0

SelectionNone

Mosaic48px / 10px

Last operationNone

Format Quality

Include overlays in export

No export yet.

createMask() removeSelectedMask() enterMosaicMode() setMosaicConfig() mergeMasks() exportImageBase64()