Give each file a different job
Use the original for visual comparison and the screenshot for caption, account or layout context. A screenshot may contain unrelated personal information, so store it carefully and redact a separate sharing copy if needed.
Record the connection
- Save the page URL and observation date.
- Keep the untouched image file.
- Note which screenshot contains that image.
- Explain any crop or export used for searching.
An original portrait alone does not prove that a certain page displayed it. A screenshot of a page may show the display but provide too little detail for a reliable image comparison.
Do not overstate either record
Files and screenshots can be edited, and neither automatically proves authorship or intent. Preserve a clear trail and distinguish your own observations from conclusions. For a routine self-image audit, a concise, well-labelled record is usually more useful than a large folder of unexplained captures.
Continue with tracing an original source.