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djvutxt - Online in the Cloud

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djvutxt - Extract the hidden text from DjVu documents.


djvutxt [options] inputdjvufile [outputtxtfile]


Program djvutxt decodes the hidden text layer of a DjVu document inputdjvufile and prints
it into file outputtxtfile or on the standard output. The hidden text layer is usually
generated with the help of an optical character recognition software.

Without options -detail and -escape, this program simply outputs the UTF-8 text. Option
-detail cause the output of S-expressions describing the text and its location. Option
-escape uses C-style escape sequences to represent nonprintable non-ASCII characters.


Specify which pages should be processed. When this option is not specified, the
text of all pages of the documents is concatenated into the output file. The page
specification pagespec contains one or more comma-separated page ranges. A page
range is either a page number, or two page numbers separated by a dash. For
instance, specification 1-10 outputs pages 1 to 10, and specification 1,3,99999-4
outputs pages 1 and 3, followed by all the document pages in reverse order up to
page 4.

This options causes djvutxt to output S-expressions specifying the position of the
text in the page. See the manual page djvused(1) for a description of the output
format. Argument keyword specifies the maximum level of detail for which text
location is reported. The recognized values are: page, column, region, para, line,
word, and char. All other values are interpreted as char.

Output escape sequences of the form "ooo" for all non ASCII or non printable UTF-8
characters and for the backslash character.


Use program djvused(1) for more control over the text layer.


This program was initially written by Andrei Erofeev <andrew_erofeev@yahoo.com> and was
then improved Bill Riemers <docbill@sourceforge.net> and many others. It was then
rewritten to use the ddjvuapi by Leon Bottou <leonb@sourceforge.net>.

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