Quick answer: prefer a local browser workflow when the task does not genuinely require a server, and always verify important output.
What an image may reveal
Photos can contain EXIF information such as capture time, camera model, orientation and sometimes location. Editing applications may add their own identifiers or workflow metadata.
Social platforms often modify metadata, but relying on a third party to remove it is not a privacy plan. Create a clean sharing copy before the upload.
Re-encode a clean copy locally
A browser can decode the visible pixels and draw them onto a new canvas. Exporting that canvas creates a new image without copying most source metadata blocks.
Keep the original photograph separately. Re-encoding is designed for a sharing copy and can change compression, color handling or exact binary content.
Resize for the destination
Choose dimensions that match the website, document or social post. A smaller image loads faster and exposes less unnecessary detail than a full-resolution camera file.
Avoid repeated resizing. Start from the original, make one carefully chosen output and inspect text, faces and edges at normal viewing size.
Inspect the result before publishing
Check the output dimensions, format and file size. Open the exported file separately and confirm that orientation, transparency and visual quality are correct.
For high-risk situations, use a dedicated metadata inspection tool as an additional check and consider whether the visible image itself reveals a location, document number or other private detail.