What gets verified
MakeFileWork checks known metadata blocks before and after cleaning, preserves pixel dimensions, and refuses to claim success if metadata markers remain. Re-encoding can slightly change compressed image bytes even when dimensions stay identical.
Why removing metadata can matter
Photos can carry camera model, capture time, GPS coordinates, editing software and descriptive fields that are not obvious when viewing the pixels. Cleaning metadata is useful before publishing or sharing an image when those hidden fields are unnecessary. It does not anonymize visible content, faces, text or other information contained in the image itself.
What re-encoding can change
The cleaner decodes and writes a new image to remove metadata blocks. Pixel dimensions are preserved, but compressed bytes can differ and lossy formats such as JPG may be encoded again. Keep the original if exact archival bytes or forensic metadata are important.
When metadata removal is useful
Removing metadata is useful before publishing product photos, screenshots, portfolio images or shared files when camera, location or editing details are unnecessary. It is not a substitute for reviewing what is visibly present in the pixels: names, faces, addresses, documents and other visible information remain part of the image.
Keep the original when provenance matters
If you need the original capture time, GPS information, camera settings or editing history for archival, legal or forensic reasons, keep an untouched copy. Metadata cleaning intentionally removes information that may be useful later even though it is not required to display the image.
Check the downloaded format, not just the filename
The cleaner detects JPG, PNG or WebP from file signatures, not the extension. A photo renamed from .png to .jpg is still processed as PNG and the cleaned download uses the correct .png suffix. If the browser silently encodes PNG instead of the requested format, the result is rejected rather than mislabeled.
What the post-check can and cannot prove
After canvas re-encoding, the output is checked for its declared MIME type, signature and known JPEG APP1/APP13/comments, PNG text/EXIF and WebP EXIF/XMP chunks. Browser-generated ICC color profiles may remain to preserve color appearance; they are not treated as private EXIF fields. This is a bounded structural check, not a forensic guarantee that every hidden field has disappeared. Reopen the file and inspect it independently when privacy requirements are strict.
Useful next steps
Need a different format or a smaller file? Use the batch image converter for multiple images, or fix upload requirements to check destination limits. Neither task replaces a visual privacy review.