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 Post subject: jpg to pdf
PostPosted: Sun Jan 01, 2017 5:39 pm 
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Joined: Sat Jan 16, 2016 3:12 pm
Posts: 151
I wish you a happy new year (free wishes like free beer).

I use imagemagick (the "convert" command) to convert scanned (jpg) documents to pdf. Do you think I could do it in another way for a better quality? Thanks.


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 Post subject: Re: jpg to pdf
PostPosted: Sun Jan 01, 2017 5:57 pm 
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Joined: Thu Apr 21, 2011 9:13 am
Posts: 145
Location: Berkshire, UK
In the repositories is a program called 'ScanTailor'. Perhaps it might do what you want?

Note I have not tried it myself!

https://github.com/scantailor/scantailor/wiki/User-Guide

Chris


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 Post subject: Re: jpg to pdf
PostPosted: Sun Jan 01, 2017 6:55 pm 
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Joined: Mon Apr 20, 2015 9:58 pm
Posts: 495
Location: Sheboygan, WI
Libre office writer, insert>.img > scan
and save as a pdf.


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 Post subject: Re: jpg to pdf
PostPosted: Sun Jan 01, 2017 8:15 pm 
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Joined: Wed Jan 08, 2014 7:27 pm
Posts: 145
If you are looking for high quality I think inkscape does a good job in converting.


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 Post subject: Re: jpg to pdf
PostPosted: Sun Jan 01, 2017 11:55 pm 
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Joined: Fri Feb 20, 2009 3:44 am
Posts: 4047
Location: Pecos, Texas
Shay wrote:
Libre office writer, insert>.img > scan
and save as a pdf.


Works for me on jpeg. No need for scan on my end and just export as .pdf.
No extra steps.

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 Post subject: Re: jpg to pdf
PostPosted: Thu Jan 12, 2017 9:10 pm 
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Joined: Sat Jan 16, 2016 3:12 pm
Posts: 151
Thanks to all of you for the replies. My problem with imagemagick (the "convert" command) is that the final file is too big as regards its dimensions. It's naturally displayed with a zoom of about 30%. On the other hand, by inserting images to libre office writer and exporting as pdf, the final file has 'normal' dimensions, but it's a bit less clear. Any idea how to use imagemagick to take pdf files of 'normal' dimensions?


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 Post subject: Re: jpg to pdf
PostPosted: Thu Jan 12, 2017 10:59 pm 
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Joined: Thu Feb 09, 2012 7:29 am
Posts: 1267
Quote:
Any idea how to use imagemagick to take pdf files of 'normal' dimensions?
google search "imagemagick rescale jpg pdf"

To preserve quality, perhaps resampling+rescaling (outputting an imagefile of changed dimensions) should be omitted from the workflow, but imagemagick doesn't know 'normal'. When calling the toPDF operation, I suspect you just need to pass a parameter:value indicating displaySize(?) or defaultScaling(?) but I don't know the exact name.

From my own google search just now, this linked result seems promising (discusses "pdf scaling")
http://www.imagemagick.org/discourse-se ... hp?t=12360


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