Printing two pages per sheet from the command line

pdf cups evince pdftk lp

147

Solution 1

There is the pdfnup (or pdfjam) command line tool. You can install it from the repositories of your distribution (sudo apt-get install pdfjam for Debian-based distributions, yaourt -S pdfnup on Arch etc).

The default options will take the input PDF file and produce an output PDF with two input pages per page:

pdfnup -o output.pdf input.pdf

Solution 2

To expand on the accepted answer:

Using pdfjam you will need to pass the landscape option as well. The usage is:

pdfjam input.pdf -o output.pdf --nup 2x1 --landscape

Note that the extra --angle 90 might save your day, depending on the orientation of the pages in the original PDF.

147

lolnoobhax

Updated on September 18, 2022

Comments

lolnoobhax almost 2 years
I'm studying C++ atm but i stumbled on something i just can't declare why it is happening. For no reason i am looking here for the exact solution of what i'm trying to do, just a explanation will be much appreciated!

It's about his piece of code here:
```
int Factorial(int x) {
    if (x = 0) {
        x = 1;
    } else {        
        int sum = 1;
        for (int counter = 1; counter <= x; ++counter) {
            sum *= counter;
        }
        x = sum;
    }
    return x;
}
```
So let us assume i call Factorial() with the int 5 (Factorial(5)). Somehow as soon the program goes passed the if (x = 0) statement it resets it(x) to 0, atleast this is all i can see in Visual Studio since it hops from the if statement straight too the declaration of the sum integer.

I hope some can clarify me what the heck has happened here.

Thank you in advance!
- Almo almost 10 years
  
  this has to be a duplicate.
- martin almost 10 years
  
  At least he used a debugger!
- Mike Seymour almost 10 years
  
  You forgot to enable compiler warnings. That would tell you exactly what's wrong.
- lolnoobhax almost 10 years
  
  @MikeSeymour Yeah, i forgot since thats in every programming course, right...
101010 almost 10 years

x == 0 .........................!!!!!!!!!#####^^^^&&*&* now you have a clue.
lolnoobhax almost 10 years

lol, omg i must be so sleepy :D I also just noticed i'm asking for counter = 1 to eliminate the 0 factor of returning 0 and that fixed it too (since the if statement is eliminated) I obviously should take a break :/ thank you for your help!!!
lolnoobhax almost 10 years

Hah thanks!! sleepyhead :/
scohe001 almost 10 years

@lolnoobhax please also see my edit.
Hanky Panky almost 10 years

Very interesting reason:)
scohe001 almost 10 years

This is clever, but I'm iffy about it...if(0 == x) just looks weird.
lolnoobhax almost 10 years

Thx again, and thx for not beeing so small minded! :p I know its a stupid mistake and all but going by the comments lol... Everyone was born pro, i forgot that bit.
TRKemp almost 10 years

@Josh It does take some getting used to, but I've made a habit of putting immutable objects on the left for many years. It makes code much more maintainable.
atkins almost 10 years

"Also, it is bad practice to modify the parameter variables." - and this would also allow you to declare int Factorial(int const x), which would have failed to compile if you accidentally tried to assign to x.
XavierStuvw over 8 years

Hi. This answer bumps against the limitation that, if I launch lpr -P PDF -p 2 the quality of the result is way too raw. It is useful if that is not a requirement.
XavierStuvw over 8 years

This produces the desired result ahead of engaging with printing commands. Man pages are available on-line from Linux.die.net
comfreak over 2 years

For pdfjam you need to add the option --nup 2x1, otherwise it just pipes the document as-is.