From 51546075f475883facb532ebdeae0510d1310a99 Mon Sep 17 00:00:00 2001 From: Kovid Goyal Date: Fri, 17 Jun 2011 18:52:14 -0600 Subject: [PATCH] ... --- src/calibre/manual/conversion.rst | 1 + 1 file changed, 1 insertion(+) diff --git a/src/calibre/manual/conversion.rst b/src/calibre/manual/conversion.rst index fea828f706..9244109ba7 100644 --- a/src/calibre/manual/conversion.rst +++ b/src/calibre/manual/conversion.rst @@ -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.