Searches a PDF for instances of artificial font style (artificial bold, italic or outline style).
Some fonts consist of specific font families for each style. The font Futura, for example, has the font families Futura (for “regular” Roman style), Futura-Bold, Futura-Oblique etc. This implies that, if you want to put text in Futura and in bold, for example, you will have to select the font family “Futura-Bold”.
Certain design programs or word processors allow you to adapt the style of these fonts artificially. You can select text and to put it in italics or in bold by selecting the respective style within this font family. Sometimes, you can even do this by means of shortcuts, e.g. Control+b for bold or Control+i for italics. Text that has been modified in this manner uses a so-called artificial bold or italic style.
This method may seem very handy but it is recommended to avoid it, because these artificial styles can cause problems when printing: e.g. artificial bold is created when printing two characters on top of each other, one being one point size bigger than the other.