Posted by manuD (184.108.40.206) on April 17, 2020 at 07:45:16:
In Reply to: bleeding out posted by LatestarPF on April 16, 2020 at 21:35:30:
you can try applying strongly diluted hydrogen peroxide with a cotton swab (without actually rubbing it in), first in a corner to see how it affects colors, and then very little and very gently on the spot over days. You have to be aware that it also affects the structure of the paper, so it might have undesired effects like bulging or hole. I would rather leave it alone.
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