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<div class="moz-cite-prefix">On 05-May-16 07:18, Mattis Lind wrote:<br>
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cite="mid:CABr82SJhjjOLWXHyqS93wOXAa=fTm9YMQ4=FXqTmX1GBnf11gA@mail.gmail.com"
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</span>I didn't have much luck with tumble (some time
ago); it tended to<br>
complain about the tiff input formats.<br>
That version/website hasn't been updated since 2003.<br>
I do have a more recent version in my archive; Don't
recall where I<br>
found it, but it does somewhat better. I posted it at<br>
<a moz-do-not-send="true"
href="https://drive.google.com/file/d/0B2g2SW-v7RFZWW1BS1E4eVk3cVU/view?usp=sharing"
rel="noreferrer" target="_blank">https://drive.google.com/file/d/0B2g2SW-v7RFZWW1BS1E4eVk3cVU/view?usp=sharing</a><br>
for now, but it needs a permanent home...<br>
<br>
ImageMagick (most distributions have it, or see<br>
<a moz-do-not-send="true"
href="http://www.imagemagick.org/" rel="noreferrer"
target="_blank">http://www.imagemagick.org/</a>) is my
go-to tool for batch image<br>
conversion/basic manipulations - e.g. rotate, resize,
flip, crop,<br>
dither, resample, etc. It runs on linux, windows, OSX and
iOS. You can<br>
also adjust the colormap size to shrink the files,
depending on the input.<br>
<br>
convert *.tiff manual.pdf<br>
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<div>It was ImageMagick and the convert tool I ended up
using for the last file. But firstly I have to scan the
manual two times since it is double sided (there is no
duplexer and it there were it would have been extremely
slow I presume). The scanner programs generates file name
numbering that I cannot control when scanning multiple
pages. So the trickiness is to splice everything together
at the end. Then secondly the scanner jammed at certain
times interrupting the number sequence. I ended up doing
it manually. Maybe there is a way to do it more
automatically. I will find out next time I scan a
document.</div>
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<blockquote class="gmail_quote" style="margin:0 0 0
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<br>
There are a bunch of tools for manipulating PDFs; some
free, some not.<br>
Here are a couple.<br>
<a moz-do-not-send="true"
href="http://www.pdfsam.org/download-pdfsam-basic/"
rel="noreferrer" target="_blank">http://www.pdfsam.org/download-pdfsam-basic/</a><br>
<a moz-do-not-send="true"
href="https://www.pdflabs.com/tools/pdftk-the-pdf-toolkit/"
rel="noreferrer" target="_blank">https://www.pdflabs.com/tools/pdftk-the-pdf-toolkit/</a><br>
<a moz-do-not-send="true"
href="http://pdfchain.sourceforge.net/" rel="noreferrer"
target="_blank">http://pdfchain.sourceforge.net/</a><br>
<a moz-do-not-send="true"
href="https://wiki.gnome.org/Apps/PdfMod"
rel="noreferrer" target="_blank">https://wiki.gnome.org/Apps/PdfMod</a><br>
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Others are probably more expert than I am, but here are a few
techniques that I've learned:<br>
<br>
Not much one can do about the scanner issues. I usually don't even
use the automatic feeder - a jam on an irreplaceable document can be
a disaster. Duplexers are even more dangerous since they have to
run the paper around more sharp curves.<br>
<br>
But tools like pdfmod allow you to rearrange pages in the PDF with
drag and drop.<br>
So you can can put the pages in order fairly quickly.<br>
<br>
Another trick is to sort the files by create time (e.g. on unix:
convert `ls -1t *.tiff` doc.pdf). This will put them into the pdf in
the same order that you scanned them. If you have a few pages out
of order due to rescans or jams, they can be fixed with
pdfmod/pdftk.<br>
<br>
For the duplexing issue:<br>
<br>
pdfsam mix will merge odd and even pages. So you can scan the odd
pages in one directory & create a PDF with them, and the even
pages in a second directory. Then use pdfsam to interleave them
into the final output file.<br>
<br>
I find that this is quicker than turning pages over, even if I'm not
using the automatic feeder.<br>
<br>
The PDF tools also will rotate pages - which helps with landscape
fold-out pages. And the times that I accidentally scan a page
upside-down :-)<br>
<br>
Thanks for scanning your archives.<br>
<br>
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