N-up

[joeky888]

A pdf file file.pdf contains 10 pages,

I would like to merge these 10 pages into a long single page pdf file file2.pdf

It is useful when backing up a webpage or excel files.

As far as I know there is only one tool called pdfjam can

do this (by using N-up) but it is not actively maintained for years,

also pdfjam is difficult to install on Windows system.

Any ideas? thanks!

[hhrutter]

Hi! Interesting use case involving a lot of content stream manipulation. Definitely doable but unfortunately I am still scratching the surface with the PDF content syntax. Something like that gets complex quickly eg. what kind of output do you expect if the pages you want to concatenate have different page dimensions?

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On Tue, Nov 13, 2018, 15:28 Joeky Zhan ***@***.*** wrote: A pdf file file.pdf contains 10 pages, I would like to merge these 10 pages into a long single page pdf file file2.pdf It is useful when backing up a webpage or excel files. As far as I know there is only one tool called pdfjam can do this (by using N-up <https://en.wikipedia.org/wiki/N-up>) but it is not actively maintained for years, also pdfjam is difficult to install on Windows system. Any ideas? thanks! — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#51>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AKzDK23z0XiYIm18heNgfxKfvhHTRjW9ks5uutcqgaJpZM4YbxMd> .

[joeky888]

what kind of output do you
expect if the pages you want to concatenate have different page dimensions?

Well, I never thought about that before,

I guess just output some errors to the user instead of brute-force concatenating?

[hhrutter]

I do understand the n-Up approach.
eg. using 4-up your 10 pages would end up on 3 pages.
Is this what you are looking for?
Or do you want to turn the 10 pages into one page that has all original pages stacked on top of each other?

[joeky888]

Is this what you are looking for?

Yes.

Vertically 10-up makes it a long single page pdf file.

[plaisted]

Hi! Interesting use case involving a lot of content stream manipulation.

Ideally you wouldn't have to touch the content streams. Each page would be added to the new N-Up page as an XObject form with the same content stream. The new N-Up content stream would just be positioning the forms correctly. I've never done this so maybe missing something.

[hhrutter]

That's correct!
That's actually what I am preparing for the next release.

[hhrutter]

Fixed in v0.1.21

[joeky888]

Cool!