Word erasing artifact: Can the flower dew erase other printed handwriting, or will it hurt the official document paper? Is there any trace?

For the manuscript printed by inkjet printer, the alcohol in the flower dew water can dissolve the handwriting, but it is difficult to eliminate the traces of individual words, because the dissolved ink will penetrate around. If it is easy to erase the handwriting on the whole paper, soak the whole manuscript in alcohol. As for the manuscript printed by the laser printer, alcohol can do nothing, because it is toner instead of ink.