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You can replace most of these "broken" words with the originals. You should paint Unicode characters on stones and throw them at the producer, hoping they will switch to XeLaTeX and thus finally arriving in the 1990s of character encodings and font standards. But »fi« being copied as a blank or not at all is usually a sign of a LaTeX PDF.
#Acrobat will not print calibri font pdf#
If they don't, you're left at the mercy of how the embedded fonts are handled and whether the PDF reader can piece together the original text again. you get »¨a« instead of »ä« when copying from a PDF (and of course cannot search for it either).Īpplications producing PDFs can opt to include the actual text as metadata. Umlauts are also rendered by a diaeresis superimposed on a letter, e.g. make things very difficult, especially as Metafont predates Unicode by almost two decades and thus there never was a Unicode mapping. Different fonts for normal text, math (uses more than one), etc. A common culprit here is LaTeX which utilises an estimated number of 238982375 different fonts (each of which is restricted to 256 glyphs) to achieve its output. The second problem is like the one you face. Especially horrible with complex scripts such as Arabic which contain only ligatures and alternate glyphs after the layout stage which means that Arabic PDFs almost never contain actual text But often even PDFs that allow you to get out ASCII text just fine will mangle everything that is not ASCII.
#Acrobat will not print calibri font code#
Most of the time the glyph IDs correspond with Unicode code points or at least ASCII codes in the embedded fonts, which means that you often can get ASCII or Latin 1 text back well enough, depending on who created the PDF in the first place (some garble everything in the process). So PDF readers have to carefully piece together the text again, inserting a space whenever they encounter a larger gap between glyphs. Why emit a blank glyph when you could just emit none at all? The result is the same, after all.
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Sure, if you look at the text there are, but not in the PDF. Another side-effect is that there are no spaces. Since PDF already contains specific information where to place each glyph there is no actual text underlying it as would be normal. There are two problems extracting meaning from a bunch of glyphs: On that level there is fundamentally no notion of text at all. So you get something like »Place glyph number 72 there, glyph number 101 there, glyph number 108 there. Text is laid out not as text but as runs of glyphs from a font at certain positions. The fundamental problem is that PDFs are a pre-print format that concerns itself only little with contents and semantics but instead is geared towards faithfully representing a page as it would be printed. However, it has nothing at all to do with OpenType.
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The issue here is, as the other answer notes, with ligatures.