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known_problems [2010/04/02 10:12] (current)
beda created
Line 1: Line 1:
 +====== Known problems ======
  
 +===== Fonts in PDF (PS, PNG) export do not match original or non-ASCII letters are mangled =====
 +
 +Here I copy a reply to one user who reported this problem to make it available to others:
 +
 +<code>
 +I have had a look at the problem you reported. As I was afraid, it is a
 +problem caused by different handling of fonts in Tkinter (the library
 +that BKChem uses to display windows) and Cairo (the library used for PDF
 +export). These two libraries have separate ways of finding fonts and it
 +sometimes happens that they find a different one for the same name or
 +that Cairo cannot find that font at all and uses some replacement. It
 +can then happen that the font looks slightly different or that some
 +non-ASCII letters disappear or a replaced by some other strange symbol.
 +I am sorry but there is not much I can do about it. The only way is to
 +try to change the font (I was successful with Arial) and re-try the export.
 +</code>

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