So today I got an important document. And now I have discovered a very funny dark spot on the paper. I googled and it does not look like a classic grease stain and a printer ink stain is definitely not… But the dark spot is "too fine".
It is also that one does not see the "dark spot" when looking from above on the paper but when I look from a lower angle "over" the paper (ie paper about at eye level) then you see the stain.
If I scan the document, then you do not see the stain. But when I flip the screen of my laptop back, you see the stain.
What is that stain? Could the "finger sweat stains" be from the person who held the document with one hand and signed it with the other?
Maybe it is copy protection or a hidden seal to prevent counterfeiting
No, it just looks like dirt and has no pattern like a seal
Watermark? Do you see it when you look through the paper? I mean in the backlight?
No! Not even if I keep the paper in clear light you do not see it. Is there any way you can send pictures of it?
Upload the picture here. You have to answer yourself. Then you have the possibility to attach pictures.
I spider yes but I can't even get a good picture of it…
Here a picture; if you are looking straight at the laptop monitor you all know very well but if you tilt the screen backwards you can see the spot in the middle left area. What's this?
Have now put an answer with picture, maybe you can watch it.
So I only see what with a lot of imagination. (The picture is also relatively small) And I'm not so sure if that is not on the display. If it is not dirt, it can simply be a small mistake in the paper.
Did you tilt the screen backwards? Then you see better.
Yeah, that's why I mean, I'm not even sure that it could be on the screen too.
