Restoring pencil writing

@kglad I don't know that I did any better than @Semaphoric, but here's what I got using a variety of features which mostly included levels, curves, blend modes, and combining various results and applying more levels, curves, and blend modes:

I did a quick attempt with duplicating the Background, running the High Pass filter on it, and setting its blending mode to Linear Light, with a Curves layer above to bump up the contrast on the paper.

If possible, I would reshoot, propping the print and the camera against something solid, or use a tripod, to get a sharper copy.

Do you have access to a scanner? 

I am afraid some of the damage in the upper right quadrant of the sheet may just be too severe to reconstruct the handwriting. 

I recommend you do a scan at RGB 16bit with a flatbed scanner. 

But in some particularly affected areas it may come down to guesswork … 

https://makeitcenter.adobe.com/en/blog/how-to-digitize-handwriting.html

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