es throughout a loop as it gets closer to an optimal dpi.
This function takes an incremental methodology to approaching an optimal dpi.</p>
<p>Since the relationship between dpi and pdf filesize is mostly linear, the algorithm used to calculate the next
recommended dpi is based on subtracting a percentage of the dpi relative to how far off the filesize was.</p>
<p>An optional step_multiplier can be modified in the code to increase or decrease the strength of the dpi change.</p>
<p>This method was inspired b