What “PNG Info” actually reads
AUTOMATIC1111, Forge and most of their forks save the generation settings as a PNG text chunk called parameters. It is a plain block of text: the positive prompt first, then a line starting with Negative prompt:, then one line of comma-separated settings such as Steps, Sampler, CFG scale, Seed, Size, Model hash and Model. This reader splits that block into a copyable prompt and a settings table.
| Generator | Where the settings live | Read here |
|---|---|---|
| AUTOMATIC1111 / Forge / reForge | PNG parameters text chunk; JPEG/WebP EXIF UserComment | Yes |
| ComfyUI | PNG prompt and workflow JSON chunks | Yes — see the workflow extractor |
| InvokeAI | invokeai_metadata / sd-metadata chunks | Detected |
| NovelAI | Comment JSON + Software chunk | Detected |
| Fooocus | parameters (JSON in newer builds) | Shown raw |
Why the prompt is sometimes missing
- The image was re-saved. Uploading to Discord, Reddit, X, Instagram or most image hosts strips PNG text chunks.
- It is a JPEG or WebP export and the “save generation info” option was off.
- The creator cleaned it on purpose — which is their choice for a published image.
If nothing shows, try the original download from the creator or the generator’s gallery rather than a re-shared copy.
Using someone else’s prompt
Prompts are usually short phrases and rarely protected on their own, but the image itself, recognisable characters, logos and living artists’ names in a prompt can still raise rights questions when you sell the result. Check the copyright and commercial-use guide before reusing a recipe commercially.
Questions
Is this the same as the PNG Info tab?
It reads the same parameters chunk. It cannot send the settings to txt2img for you, but you can copy the prompt and settings in one click.
Can it read the prompt from a Midjourney or ChatGPT image?
Midjourney downloads can include the prompt in the image description, which is shown. ChatGPT and DALL·E images do not store the prompt; they carry Content Credentials instead.
Does it work with JPEG and WebP?
Yes, when the generator wrote the parameters into EXIF UserComment. Many JPEG exports do not keep them.
Is the image uploaded?
No. The file is parsed in this browser tab and discarded when you close it.
Primary sources
Formats, standards and upload limits checked on November 5, 2026.