Lol is that a problem take pictures? If you read ppr message it states what picture need to be. there is date, size, name of place, ur name, and ur bd.
If you have pictures exact needed dimensions with exact ur head ratio no date on the back. You might can use them if you put info on the back side of a picture.
But lol what's problem of doing new pictures, in 2020 you get them in like less then 10 min.
Beware It is common to get your passport back without visa if your pictures got rejected. I know indirectly few cases. So do you need the hassle?