With PaperLabApp you can use the screen of your smartphone to expose photos from your gallery to analogue photo paper. The chosen image will be displayed as negative for the preset exposure time. To expose and develop your images you also need the usual darkroom equipment.
![How to Code Rock Paper Scissors in App Lab [ Programming for Beginners] screenshot 4](https://i.ytimg.com/vi/uCiZOr3XFD8/mqdefault.jpg)
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