If you want to make your document more safe, you can use this trick to print out your documents using invisible ink from your inkjet printer. But first, things that you need are:
- Empty inkjet printer catridge
- 4 invisible ink pens
- UV light
Ok, I already have the things needed. So what’s next? Watch this video.
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Wah, that’s cool. But I don’t have a printer to try it on.
lol… you can use the pen only.
you can cheat in the exams though.
My school actually don’t allow us to bring UV pen to school.