[Simh] PDP-15/76

[Timothe Litt]

On 05-May-16 07:18, Mattis Lind wrote:
>
>
>
>     I didn't have much luck with tumble (some time ago); it tended to
>     complain about the tiff input formats.
>     That version/website hasn't been updated since 2003.
>     I do have a more recent version in my archive; Don't recall where I
>     found it, but it does somewhat better.  I posted it at
>     https://drive.google.com/file/d/0B2g2SW-v7RFZWW1BS1E4eVk3cVU/view?usp=sharing
>     for now, but it needs a permanent home...
>
>     ImageMagick (most distributions have it, or see
>     http://www.imagemagick.org/) is my go-to tool for batch image
>     conversion/basic manipulations - e.g. rotate, resize, flip, crop,
>     dither, resample, etc.  It runs on linux, windows, OSX and iOS. 
>     You can
>     also adjust the colormap size to shrink the files, depending on
>     the input.
>
>        convert *.tiff manual.pdf
>
>
>
> 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.
>  
>
>
>     There are a bunch of tools for manipulating PDFs; some free, some not.
>     Here are a couple.
>     http://www.pdfsam.org/download-pdfsam-basic/
>     https://www.pdflabs.com/tools/pdftk-the-pdf-toolkit/
>     http://pdfchain.sourceforge.net/
>     https://wiki.gnome.org/Apps/PdfMod
>
>
Others are probably more expert than I am, but here are a few techniques
that I've learned:

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.

But tools like pdfmod allow you to rearrange pages in the PDF with drag
and drop.
So you can can put the pages in order fairly quickly.

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.

For the duplexing issue:

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.

I find that this is quicker than turning pages over, even if I'm not
using the automatic feeder.

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 :-)

Thanks for scanning your archives.

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