View Full Version : Splitting Landscape Scans


Devlar
07-19-2006, 04:33 AM
Hello,

I have a question. I have quite a few books scanned in landscape form (2 pages per scan, in PDF form). Is there any software or tutorials on how to split the pages? so that I have one page per page?

TadW
07-19-2006, 10:01 AM
I don't think it's possible with Adobe Acrobat Pro (I checked all of its options for a clue). However, there seem to be third party tools that might do the trick. With Google I found:

Arts PDF Aerialist (http://www.artspdf.com/arts_pdf_aerialist.asp) - "Split by anything -- pages, page ranges, bookmarks and page marks, while retaining cross-document linking."
Evermap AutoSplit (http://www.evermap.com/autosplit.asp) - not sure if it can do what you need, but they have a trial.
VeryPDF PDF Split-Merge (http://www.verypdf.com/pdfpg/index.html) - ditto, not sure, but you can download it.
VeryPDF PDF Editor (http://www.verypdf.com/pdf-editor/index.html) - seems to be the big brother of above.
AccessPDF pdftk (http://www.accesspdf.com/pdftk/) - not sure if it can do it, but it's open-source.

Sorry for not being any more concrete. Maybe someone else can tell you more.

Devlar
07-20-2006, 11:10 PM
Thank you sir, I'll check them out and I'll report if they work.

Devlar
07-23-2006, 05:00 AM
While I find it somewhat odd, none of the programs do what I was looking for.

It's really odd that no one has created a utility that will take an image, break it in half and make two pages out of it.

That being said I did find a solution to my problem using Acrobat and Pdftk.

First take your landscape PDF and crop all pages. Save all the even pages as "even.pdf", save the odd pages as "odd.pdf"

Copy odd.pdf and even.pdf into the pdftk directory (unless you installed pdftk in the system32 dir)

Now go into the command console and into the pdftk directory.

First we have to expand the odd and even pages

pdftk A.pdf burst output %04d_A.pdf
pdftk B.pdf burst output %04d_B.pdf

Then we have to recombine the pages in order

pdftk *_?.pdf cat output combined.pdf

The only downside of this technqiue is that it creates a whole lot of temporary files

so if you had less than 1000 pages, just type in

del 0*.*

congrats, you've got a combined.pdf that separated your pages and put them in order.

Hopefully someone will find this useful

Devlar
09-04-2013, 06:15 AM
Man, have I never been so happy to find an old post like this.

Toxaris
09-04-2013, 06:57 AM
Most OCR programs can actually do that on the fly. If you have Linux you can use the program pdfimages to get all the images again. Than you can use Scantailor to split and optimize. If you really want a PDF again, you can always use Imagemagick to do that. Only pdfimages is Linux, all other programs are also available on Windows.

RbnJrg
09-04-2013, 09:39 AM
Hello,

I have a question. I have quite a few books scanned in landscape form (2 pages per scan, in PDF form). Is there any software or tutorials on how to split the pages? so that I have one page per page?

You can use Scankromsator (http://www.djvu-soft.narod.ru/kromsator/eng.htm) or (as Toxaris said) Scantailor (http://scantailor.sourceforge.net/?q=en/node/3). Both of them, split and optimize scanned pages.

elibrarian
09-04-2013, 10:07 AM
Since we're taking this old thread up again, here's a couple of "new" ways:

BRISS

PDF Scissors

or print to pdf from Acrobat Viewer using "Tile all pages"

Regards,

Kim

Rizla
09-04-2013, 03:21 PM
I can confirm Briss works very well. Crops as well.