⚡ Myth: RAW Files Cannot Be Edited
It is often assumed that RAW files cannot be edited directly. This is true when it comes to image data – the raw sensor information (pixels, noise, dynamic range) remains unchanged. That is why programs like Lightroom and Photoshop save edits into separate XMP sidecar files or into their catalogs, without modifying the original RAW file.
However, metadata (EXIF, IPTC, XMP, and partially MakerNotes) is a different matter. It contains textual information about the image – author, camera, lens, date, keywords, copyright. This part can be safely modified. Tools like ExifTool allow direct writing into the RAW container, changing only the “passport data” while leaving the pixels untouched. It is important to note that some fields in MakerNotes are read-only and cannot be overwritten.
In professional photography, metadata is no less important than the images themselves. It contains details about the author, camera, lens, settings, and copyright information. Proper metadata management not only protects your work but also provides real SEO benefits – better search engine ranking and stronger brand recognition.
In this article, I will show you how to use
ExifTool – a powerful and completely free open-source software created by Phil Harvey, to edit RAW metadata.
🔧 What is ExifTool?
ExifTool is an open-source software that allows you to read and write EXIF, IPTC, and XMP data in files of various formats, including RAW (.CR2, .NEF, .ARW, and others).
The program runs via the command line (console), but it is extremely flexible and reliable.
- Supports a wide range of formats.
- Allows batch editing of files.
- Does not change the pixels, only the “passport data”.
🖥️ Installation Steps
- In the folder where
exiftool(-k).exeis located, rename it to:
exiftool.exe - Start from the Command Prompt:
PressWin + R→ typecmd→ Enter. - Navigate to the folder where
exiftool.exeis located:cd C:\Program Files\exiftool-13.36_64 - Specify the full path to the RAW file, for example:
C:\Users\LubomirJiponovPC\Desktop\Photos\2019.08.10-025.cr2 - Run a command for editing, for example:
exiftool -overwrite_original -Description="Award-winning wedding photography by Lubomir Jiponov.""C:\Users\LubomirJiponovPC\Desktop\Photos\2019.08.10-025.cr2"
⚠️ Important: Always make a backup copy of the RAW file before making changes, as it may become corrupted when metadata is written directly into the raw format.
✅ Legal and Useful Changes for Photographers (SEO Optimization)
The most important tags that every photographer can and should edit:
- Author (Artist/Creator) – adds your name.
- Copyright – protects your images.
- Copyright Status – set to “Copyrighted” instead of “Public Domain”.
- Description – a short SEO-friendly text.
- Keywords – for indexing in Google Images.
- Website (Contact/URL) – a direct link to your site.
– Creator –
exiftool -overwrite_original -Artist="Jiponov" -Creator="Jiponov" "C:\Users\LubomirJiponovPC\Desktop\Photos\2019.08.10-025.cr2"– Copyright –
exiftool -overwrite_original ^
-Copyright="Copyright 2025 Jiponov. All rights reserved." ^
-XMP-dc:Rights="Copyright 2025 Jiponov. All rights reserved." ^
-XMP-xmpRights:Marked=True ^
-XMP-xmpRights:UsageTerms="Copyright 2025 Jiponov. All rights reserved." ^
"C:\Users\LubomirJiponovPC\Desktop\Photos\2019.08.10-025.cr2"👉 After these commands, your RAW file will contain complete authorship and SEO data. When you upload the file to your website or export it to JPG, Google can read the description and keywords → resulting in better visibility in search results.
🔴 “Extreme” Examples (Demonstration Only)
ExifTool also allows for experimental changes:
- Changing the camera model (Model)
- Changing the serial number (SerialNumber)
- Changing the lens (LensModel, LensInfo)
- Changing the aperture, shutter speed, ISO
Examples:
– Model –
exiftool -overwrite_original -Model="Canon Powershot SX740HS" "C:\Users\LubomirJiponovPC\Desktop\Photos\2019.08.10-025.cr2"– Lens Model –
exiftool -overwrite_original -LensModel="Canon EF 50mm f/1.2L USM" "C:\Users\LubomirJiponovPC\Desktop\Photos\2019.08.10-025.cr2"– Lens Info –
exiftool -overwrite_original -LensInfo="50mm f/1.2-1.2" "C:\Users\LubomirJiponovPC\Desktop\Photos\2019.08.10-025.cr2"– Focal Length –
exiftool -overwrite_original -FocalLength="200" "C:\Users\LubomirJiponovPC\Desktop\Photos\2019.08.10-025.cr2"– Target Aperture –
exiftool -overwrite_original -MakerNotes:TargetAperture="8.0" "C:\Users\LubomirJiponovPC\Desktop\Photos\2019.08.10-025.cr2"– FNumber –
exiftool -overwrite_original -FNumber="8.0" "C:\Users\LubomirJiponovPC\Desktop\Photos\2019.08.10-025.cr2"– Aperture Value –
exiftool -overwrite_original -ApertureValue="8.0" "C:\Users\LubomirJiponovPC\Desktop\Photos\2019.08.10-025.cr2"– Exposure Time –
exiftool -overwrite_original -ExposureTime="1/25" "C:\Users\LubomirJiponovPC\Desktop\Photos\2019.08.10-025.cr2"– ISO –
exiftool -overwrite_original -ISO="5000" "C:\Users\LubomirJiponovPC\Desktop\Photos\2019.08.10-025.cr2"– Camera ISO –
exiftool -overwrite_original -CameraISO="5000" "C:\Users\LubomirJiponovPC\Desktop\Photos\2019.08.10-025.cr2"⚠️ Important:
- These are metadata only – the RAW image itself is not changed. The examples are for educational and demonstration purposes only.
- A RAW file consists of two layers:
- Image Data → the actual pixels from the sensor.
- Metadata → textual descriptive information (EXIF/IPTC/XMP/MakerNotes).
- Some tags (e.g., BaseISO, SerialNumber) may be read-only and cannot be modified.
🔎 SEO Benefits of EXIF/IPTC/XMP Tags
Few photographers know that Google Images and other search engines read IPTC/XMP metadata.
When properly filled in:
- photos are indexed more easily,
- they rank higher in search results,
- they strengthen your personal brand.
– Headline –
exiftool -overwrite_original -Headline="Wedding Photography Bulgaria" "C:\Users\LubomirJiponovPC\Desktop\Photos\2019.08.10-025.cr2"– Description –
exiftool -overwrite_original -Description="Award-winning wedding photography by Lubomir Jiponov." "C:\Users\LubomirJiponovPC\Desktop\Photos\2019.08.10-025.cr2"– Keywords –
exiftool -overwrite_original -Keywords="wedding photography Lubomir Jiponov" "C:\Users\LubomirJiponovPC\Desktop\Photos\2019.08.10-025.cr2"– Contact –
exiftool -overwrite_original -Contact="https://www.lubomirjiponovphotography.com/en/" "C:\Users\LubomirJiponovPC\Desktop\Photos\2019.08.10-025.cr2"
⚖️ Legal Aspect
Editing metadata with ExifTool is completely legal when it comes to your own files. In fact, it is recommended in professional photography as it helps protect authorship and supports SEO optimization.
It is important to understand that Copyright Management Information (CMI) is protected by law. Intentionally removing or altering someone else’s copyright metadata may lead to copyright infringement and unlawful use.
In other words:
- ✅ It is legal to edit your own RAW files in order to manage and protect your copyright.
- ❌ It is illegal to remove or alter metadata in someone else’s files with the intent of claiming authorship, committing fraud, or for any other unlawful purpose.
📌 Conclusion
ExifTool is an extremely powerful tool for every photographer:
- ✔️ Protects authorship through accurate metadata.
- ✔️ Enables SEO optimization for Google and social media.
- ✔️ Provides the opportunity to experiment with camera and lens data (for demonstration purposes only).
ℹ️ Note to the Reader
The demonstrations were made with my own RAW files and are intended for educational purposes only.
The changes affect only the metadata (EXIF/IPTC/XMP/MakerNotes), not the actual RAW content (the pixels).
Editing someone else’s files to remove or alter authorship is prohibited and illegal.
Author: Lubomir Jiponov | Published: September 12, 2025, 12:50
