# Image Naturalization How-Tos

The manual method first, with the tools that do it. The automated path second, for when there are more than a handful of files.

- [How to remove AI metadata from a PNG](https://passreal.com/how-to/remove-ai-metadata-png): A PNG from an AI generator can hold prompts in text chunks, XMP, EXIF and a C2PA chunk. A map of what sits where, how to remove it and how to verify the file.
- [How to add EXIF data to an AI-generated image](https://passreal.com/how-to/add-exif-data): An AI image often has no camera EXIF at all. How to add Make, Model, exposure and date fields with ExifTool, and why the values have to agree with each other.
- [How to remove C2PA Content Credentials from an image](https://passreal.com/how-to/remove-c2pa): C2PA Content Credentials sit in a JUMBF block you can delete. ExifTool does it in one command for JPEG, PNG and WebP. How to do it and how to check it worked.
- [How to fix plastic skin in AI-generated images](https://passreal.com/how-to/fix-plastic-skin): Plastic, waxy skin in AI portraits comes from over-smoothing. The usual causes, settings to change at generation, and what grain can and cannot restore.
- [How to add camera noise to an AI image, properly](https://passreal.com/how-to/add-camera-noise): Real sensor noise is signal-dependent and lives in one channel more than others. Gaussian noise in Photoshop is neither, and that difference is measurable.
- [How to strip text chunks from a PNG](https://passreal.com/how-to/strip-png-text-chunks): PNG stores prompts and workflows in tEXt, zTXt and iTXt chunks. Here is how to see them, remove them with exiftool, and check nothing was left behind.
- [How to remove the Software tag from an image's EXIF](https://passreal.com/how-to/remove-software-exif-tag): The EXIF Software tag names the program that saved a file, and editors and AI tools leave theirs behind. Where it hides and how to clear every copy.
- [How to remove metadata from a whole batch of images](https://passreal.com/how-to/batch-metadata): Cleaning one image is easy. For a folder, run ExifTool recursively, write results to a separate directory and audit them with a CSV. A workflow that scales.
- [How to make an AI image undetectable](https://passreal.com/how-to/make-ai-image-undetectable): Detectors read the file, the noise and the frequencies of an AI image. How to clean all three by hand, or in one upload with a money-back guarantee.
- [How to remove metadata from an image](https://passreal.com/how-to/remove-image-metadata): Remove GPS, camera, date and software data from a photo on Windows, Mac, iPhone, Android or with ExifTool, plus the extra steps an AI image needs.
- [How to remove the AI info label from an Instagram post or story](https://passreal.com/how-to/remove-ai-info-instagram): Why Instagram shows AI info on a post or story, what you can change on one already published, and how to upload a clean file. Plus your duty to disclose.
- [AI image humanizer: how to humanize an AI image](https://passreal.com/how-to/humanize-ai-image): What an AI image humanizer does, why it is not the same as a text humanizer, the four layers it works on, which free tools help, and a free test of 3 images.
- [How to make AI images look real](https://passreal.com/how-to/make-ai-images-look-real): What gives an AI photo away to the eye and the file: plastic skin, perfect light, hands, text, flat blur, no grain. Prompt tips, edits, then sensor noise, EXIF.