CREATIVE WORKFLOWS

PNG Prompts and ComfyUI Workflow Metadata

This Remove AI Label guide explains stored PNG parameters and workflows before you clean a delivery copy.

Find the stored text

PNG tEXt, zTXt and iTXt chunks can hold prompts, seeds, captions or workflow JSON. Inspect supported values in View report. Long or compressed values may be shortened; ordinary applications also write PNG text.

Try a reproducible example

Remove AI Label generates a local sample with a parameters field. Inspect it, clean it, then compare the output. The text container disappears while the encoded picture remains; this does not establish AI origin or watermark status.

Keep an editable master

Cleaning removes supported text, EXIF, time and provenance containers together. You cannot retain a caption while deleting only a prompt. Preserve original workflow files for later editing. Encoded pixels, alpha, animation, color profiles and necessary orientation remain intact.

Respect the format limits

Files stay in your browser. Use JPG, PNG or WebP; HEIC, AVIF, GIF, PDF, video and audio are unsupported. Metadata cleanup does not remove SynthID or guarantee changes to platform AI labels.

Understand the before and after report

The field table shows values, while the container summary identifies where they live. After cleanup, the output table should no longer show the sample's parameters text. Those reports answer a file-data question, not a classifier question. Long or compressed workflows may be only partly readable even though their supported container is removable. Keep the report and editable master for reproducibility. A small size reduction is normal for a small text block and is not a separate watermark test.

Further reading: C2PA specification · Google SynthID