What is EXIF metadata?
EXIF is the block of information your camera writes inside a photo: device, lens, exposure, timestamps and often GPS. Here is what it contains and where it lives.
7 min read
Guides
What metadata is, where each format hides it, and what removing or editing it actually achieves. Written from the implementation, not from a template.
How to remove EXIF metadata from a photo
Remove EXIF, GPS, IPTC and XMP from JPEG, PNG, WebP, HEIC and AVIF images without recompressing them — and check that it actually worked.
6 min read
How to remove GPS coordinates from photos
Photos can record where they were taken to within a few metres. Here is how to see whether yours do, and how to remove the location before sharing.
6 min read
What metadata does an iPhone photo contain?
iPhone photos record the exact camera module, lens, exposure, iOS version, timestamps with sub-second precision and — unless disabled — the location.
6 min read
What metadata can videos contain?
MP4, MOV and WebM store creation times, device identity, encoder details and often GPS. Here is where it hides and why removing it is not as simple as deleting bytes.
8 min read
How to check what metadata an image contains
Read the EXIF, IPTC, XMP and colour profile of a photo without uploading it anywhere, and understand what the fields mean.
5 min read
Does removing metadata change the image itself?
No — provided the tool rewrites the container instead of re-saving the picture. Here is the difference, and how to tell which one you are using.
5 min read
How to edit photo metadata
Correct a wrong timestamp, set consistent authorship, or change camera fields — written to real EXIF structures and verified afterwards.
6 min read
Metadata vs content provenance
Metadata describes a file. Provenance systems attest to its history. They are different things, and confusing them leads to bad conclusions.
6 min read
What are Content Credentials (C2PA)?
C2PA Content Credentials are a signed record some cameras and editing tools attach to a file, describing where it came from and what was done to it.
6 min read
How to Remove Metadata from PDF Documents
Learn how to inspect and permanently remove author names, software history, creation dates, and hidden XML streams from PDF documents directly in your browser.
8 min read
How to Watermark Photos Privately Without Server Uploads
Protect your original images with text and logo watermarks entirely in your browser. Learn why local client-side watermarking preserves privacy and prevents data leaks.
7 min read
How to Convert Images Privately Between Formats
Convert JPEG, PNG, WebP, and AVIF images locally inside your browser. Understand quality tradeoffs, transparency handling, and how format conversion strips hidden metadata.
8 min read
Understanding AI Image Metadata, Prompts, and C2PA
Discover what generative AI tools like Midjourney, Stable Diffusion, and DALL-E write inside image files: prompts, seeds, sampler settings, and C2PA Content Credentials.
9 min read