This question already has an answer here:

Self-explantory question. I'm looking to make an image unsavable for someone browsing a doc online in overleaf, could be jpg, png or pdf.

marked as duplicate by user170109, Stefan Pinnow, user121799, Raaja, Phelype Oleinik Jun 12 at 8:54

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

  • 5
    Impossible: they can always take a screenshot. – JPi Jun 12 at 2:14
  • 2
    If you are bothered about people stealing an image, don't display it. Any other option is just deluding yourself. – alephzero Jun 12 at 2:35

Browse other questions tagged or ask your own question.