Double-page scans to single-page ones?

From the Internet some scans of books display two
pages at once.

These are harder to read on tablets.

Is it possible to convert these two-page scans to
single-page ones with Acrobat?

Maybe with the "extract" function?

On 21/12/2018 22:54, Peter Jason wrote:
From the Internet some scans of books display two
pages at once.

These are harder to read on tablets.

Is it possible to convert these two-page scans to
single-page ones with Acrobat?

Maybe with the "extract" function?
Without a sample page it is difficult to say but have you tried in acrobat:

View Page Display Single Page View

https://i.imgur.com/FQSPcdw.png https://i.imgur.com/FQSPcdw.png


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In article , Peter Jason
wrote:

From the Internet some scans of books display two
pages at once.

These are harder to read on tablets.

Is it possible to convert these two-page scans to
single-page ones with Acrobat?

Maybe with the "extract" function?

http://khkonsulting.com/2009/03/splitting-pdf-pages/

https://superuser.com/questions/7910...half-a-double-
page-scanned-pdf-in-a-single-pass

On Sat, 22 Dec 2018 09:54:52 +1100, Peter Jason wrote:

From the Internet some scans of books display two
pages at once.

These are harder to read on tablets.

Is it possible to convert these two-page scans to
single-page ones with Acrobat?

Are these scans in PDF format - or something else? If so, what
format?

nospam wrote:
In article , Peter Jason
wrote:

From the Internet some scans of books display two
pages at once.

These are harder to read on tablets.

Is it possible to convert these two-page scans to
single-page ones with Acrobat?

Maybe with the "extract" function?

http://khkonsulting.com/2009/03/splitting-pdf-pages/

https://superuser.com/questions/7910...half-a-double-
page-scanned-pdf-in-a-single-pass

From that second link, even though the mutool documentation
page doesn't show a "poster" option, it exists in the
executable. This is "normal" for this particular software
source. They concentrate on writing software mostly.

Artifex mutool

https://mupdf.com/downloads/index.html

https://mupdf.com/downloads/archive/....0-windows.zip

mutool --help

mutool poster -x 2 input.pdf output.pdf

-p - password
-x x decimation factor (default 1)
-y y decimation factor (default 1)

There are two ways to get a two-up view in Acrobat.

One is by using the preferences in Acrobat Reader
and selecting "facing" as the viewing option,
instead of "single".

But, there are evil scanner software packages, that
take two scanned images (two passes) and jam the results
into one logical page. These need an actual transformation.

+-----------------------+ +-----------+ +-----------+
| page1 page2 | == | page1 | | page2 |
| image image | | image | | image |
+-----------------------+ +-----------+ +-----------+

and that's what the "poster" option is for. You can
still select "Facing" in the actual PDF Reader and
make it look like two pages are on the screen at
the same time. To see one page on the screen select
"Single" or "Continuous" in the Reader application.

+-----------+
| page1 |
| image |
+-----------+
Continuous, as you scroll down.
+-----------+ (Viewing the mutool poster output.pdf)
| page2 |
| image |
+-----------+

Demo:

https://i.postimg.cc/8zfRXwL4/mutool-poster.gif

I use mutool mostly for its "clean" option. I don't
think "poster" is in the older version I use.

Paul