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Kovid Goyal 2011-06-17 18:52:14 -06:00
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src/calibre/manual/conversion.rst
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@ -657,6 +657,7 @@ Some limitations of PDF input are:
* Some PDFs store their images upside down with a rotation instruction, |app| currently doesn't support that instruction, so the images will be rotated in the output as well.
* Links and Tables of Contents are not supported
* PDFs that use embedded non-unicode fonts to represent non-English characters will result in garbled output for those characters
* Some PDFs are made up of photographs of the page with OCRed text behind them. In such cases |app| uses the OCRed text, which can be very different from what you see when you view the PDF file
To re-iterate **PDF is a really, really bad** format to use as input. If you absolutely must use PDF, then be prepared for an
output ranging anywhere from decent to unusable, depending on the input PDF.