Help converting Djvu to mobi

Stratogirl · 07-07-2011, 04:07 AM

I've been looking for a book that I can't find in my country.
A friend of mine got me a scanned djvu version of the book and I'm trying to convert it to read it on the Kindle.
I understand that there are software that can convert it to pdf but I would prefer to convert it to mobi because the scanned djvu is really bad and I would prefer to have it in a reflowable format.

I was able to save the djvu into txt via WinDjView then loaded the txt into Word.
The book has illustrations so I will have to do some screen captures, edit the pictures and load them into Word.
Plus I have to clean all the page numbers and headers.

But the biggest problem I'm having now is that the txt file has line breaks in each line (because of the limited page size of the scanned document).
Is there a way that I can eliminate these breaks without having to delete them manually one by one?

RobbieRobot · 07-07-2011, 05:40 AM

You could use some very simple HTML tags to mark the beginnings of the paragraphs. All the lines in the paragraphs will then flow because of the nature of HTML.

Here is a little filter program written in perl which expects to read plain text from STDIN and prints simple HTML to STDOUT

#!/usr/bin/perl
#
# Convert plain text with a blank line between paragraphs into html
#
use strict;

my ($rope, @html);

while (<STDIN>) {
$_ =~ s/\r//; # make all text look like unix text
$_ =~ s/\x0c//;
$_ =~ s/\n/\xff/;
push(@html,$_);
}

$rope = join("\xff",@html); # Make one huge string

$rope =~ s/\xff\xff\xff/\n<p>/ig;# Convert double new-line into paragraph
#print $rope; exit;
$rope =~ s/\xff\s+/\n<p>/ig; # Convert single new-line followed by whitespace into paragraph
$rope =~ s/\xff/ /ig; # Convert remaining new-lines into spaces

$rope =~ s/\[\d+\]//g; # [32] etc tags from .PDF saved as .txt

print "<HTML><HEAD><TITLE>From text2HTML</TITLE></HEAD><BODY>\n\n";
print $rope;
print"\n\n</BODY></HTML>\n";
#EOF

sourcejedi · 07-07-2011, 07:35 AM

That only helps if it has double-line breaks in the first place.

(And if you're using Word, you may as well just use Search and Replace All. Lessee... "^l" means line break. So replace ^l^l with ^p, and then all the remaining ^l with the empty string, deleting them).

WT Sharpe · 07-07-2011, 09:46 AM

Moderator Notice
Thread closed. MR is firmly opposed to ebook piracy.

07-07-2011, 04:07 AM	#1
Stratogirl Member Posts: 13 Karma: 10 Join Date: Apr 2009 Device: Amazon Kindle 3	Help converting Djvu to mobi I've been looking for a book that I can't find in my country. A friend of mine got me a scanned djvu version of the book and I'm trying to convert it to read it on the Kindle. I understand that there are software that can convert it to pdf but I would prefer to convert it to mobi because the scanned djvu is really bad and I would prefer to have it in a reflowable format. I was able to save the djvu into txt via WinDjView then loaded the txt into Word. The book has illustrations so I will have to do some screen captures, edit the pictures and load them into Word. Plus I have to clean all the page numbers and headers. But the biggest problem I'm having now is that the txt file has line breaks in each line (because of the limited page size of the scanned document). Is there a way that I can eliminate these breaks without having to delete them manually one by one?

07-07-2011, 05:40 AM	#2
RobbieRobot Junior Member Posts: 5 Karma: 10 Join Date: May 2011 Location: Queensland, Australia Device: Kindle 3	HTML You could use some very simple HTML tags to mark the beginnings of the paragraphs. All the lines in the paragraphs will then flow because of the nature of HTML. Here is a little filter program written in perl which expects to read plain text from STDIN and prints simple HTML to STDOUT #!/usr/bin/perl # # Convert plain text with a blank line between paragraphs into html # use strict; my ($rope, @html); while (<STDIN>) { $_ =~ s/\r//; # make all text look like unix text $_ =~ s/\x0c//; $_ =~ s/\n/\xff/; push(@html,$_); } $rope = join("\xff",@html); # Make one huge string $rope =~ s/\xff\xff\xff/\n<p>/ig;# Convert double new-line into paragraph #print $rope; exit; $rope =~ s/\xff\s+/\n<p>/ig; # Convert single new-line followed by whitespace into paragraph $rope =~ s/\xff/ /ig; # Convert remaining new-lines into spaces $rope =~ s/\[\d+\]//g; # [32] etc tags from .PDF saved as .txt print "<HTML><HEAD><TITLE>From text2HTML</TITLE></HEAD><BODY>\n\n"; print $rope; print"\n\n</BODY></HTML>\n"; #EOF

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Converting .djvu to .pdf	BranMakMorn	Amazon Kindle	5	01-21-2011 04:32 PM
converting from standard mobi to compressed mobi	noideaatall	Kindle Formats	6	07-11-2010 03:10 PM
Easy DJVU Reader - reading DJVU books	Rsfor	Apple Devices	5	02-05-2010 08:30 PM
Converting to mobi	rcuadro	Calibre	3	03-13-2009 01:14 AM
Confused about DJVU files and converting to LRF	BBRags	LRF	4	12-08-2008 04:37 PM

07-07-2011, 07:35 AM	#3
sourcejedi Groupie Posts: 155 Karma: 200000 Join Date: Dec 2009 Location: Britania Device: Android	That only helps if it has double-line breaks in the first place. (And if you're using Word, you may as well just use Search and Replace All. Lessee... "^l" means line break. So replace ^l^l with ^p, and then all the remaining ^l with the empty string, deleting them).

07-07-2011, 09:46 AM	#4
WT Sharpe Bah, humbug! Posts: 39,073 Karma: 157049943 Join Date: Jun 2009 Location: Chesapeake, VA, USA Device: Kindle Oasis, iPad Pro, & a Samsung Galaxy S9.	Moderator Notice Thread closed. MR is firmly opposed to ebook piracy.

Advert