How can I safely add a digital timestamp to my scanned passport PDF for consulate submissions?

This discussion focuses on the best methods to add a digital timestamp to a scanned passport PDF, emphasizing safety to avoid tampering concerns from stringent consulate reviews. Suggestions include using a local newspaper as a background for authenticity, utilizing ATM receipts for proof of time and location, and exploring camera settings to include embedded timestamps. Some users shared that explicitly writing the date and time on documents had been accepted during recent approvals, indicating that straightforward methods might be effective.