Ubuntu
kdegraphics package

  1. Bug #411538
  2. Comment #16

Comment 16 for bug 411538

Revision history for this message
In , David D Short (chameleondave) wrote :

Version: (using KDE 4.1.4)
OS: Linux
Installed from: Ubuntu Packages

Here are two words: fire, fire.

They are identical, except that the first one contains a ligature bringing the f and the i together. The second one has no ligature. The first is the standard in proper typesetting, and it is the default output of LaTeX.

If I search for "fire" in Okular, the word will not be found, because Okular doesn't understand the ligature. By way of comparison, Adobe Reader for Linux does understand the ligature, and finds the word.

This can lead to great frustration.

I imagine that this applies to all documents in Okular, rather than being specific to the PDF backend. There are a handful of other common ligatures that this applies to (see http://en.wikipedia.org/wiki/Typographic_ligature).