Paper is a fairly translucent substrate. The thinner/lighter weight or higher character the newspaper the to a greater extent than translucent it is. The outcome is "show-through" - seeing a ghost icon of what was printed on the contrary side - whether reading the page itself or scanning/photocopying it. Scan alongside coloring bar as well as text on the adjacent page showing-through. Close upwardly thought of show-through. To eliminate show-through inward scans and/or photocopies, merely house a slice of dark newspaper behind the canvas that y'all are scanning. This evens out the tonality of the page as well as effectively eliminates show-through.