Digital BW, The Print

>> I have Spotall and a Sharpie pen, which would be better?  

> I tried this with a Sharpie once on some PR.  It left a dark black
> speck.  Not as visible as the white speck it replaced but MUCH
> darker than the black area around it.  I would not recommend a
> Sharpie.

Sharpie's might be "permanent" but they are definetly not archival.
The dyes in the ink will wick into some papers over time and leave
rainbow colored halos. They should never touch a work of art IMO,
except maybe a Tom Sachs (http://www.tomsachs.org/).

-Jason