Javascript to add A4 page to end of odd numbered PDFs

[djbats]

Hi, I'm currently using..

if (this.numPages % 2) {

    this.newPage();

}

..to add a blank to the end of odd numbered documents, this will add an 8.5"x11" page but I'd like to add an A4 insstead, is there a way to specify the page size added?

[djbats]

..instead, not "insstead"

[Bernd Alheit]

You can specify width and height as parameters of newPage. Look at the documentation of newPage.

[try67]

Use this:

this.newPage(11.6*72, 8.27*72);

[JR Boulay]

"this.newPage(11.6*72, 8.27*72);"

This is not A4 size 😉

Use this instead:

this.newPage(this.numPages-1, 595,842)

[try67]

That's more accurate, true...

[djbats]

.. many thanks for that, the size is much better but it's not adding to the end of the file, it adds to the beginning and oddly on occasion inserts between other pages. I'm not sure how to modify the script to position the inserted page last.

[Bernd Alheit]

What script does you use?

[djbats]

Hi, I was using 

if (this.numPages % 2) {

    this.newPage();

}

which added to the end but was not A4, then Ive tried 

this.newPage(this.numPages-1, 595,842)

..am I missing part of the script?

[djbats]

Hi, I have it to the end using

if (this.numPages % 2) {

this.newPage(11.62*72, 8.70*72);

}

is it just a case of tweaking (11.62*72, 8.70*72 to get an A4 size?

[JR Boulay]

Try this one:

if (this.numPages % 2) {this.newPage(this.numPages-1, 595,842);}

[djbats]

..thanks for that, this adds a 297mm x 279.4mm to the back,  I'm not sure what the relationship between 595,842 and 297x279 is, so I'm not sure how to tweak these figures to create an A4, 297mm x 210mm page.

[JR Boulay]

Sorry, you must remove the "-1" to put the new page at the end of the document:

if (this.numPages % 2) {this.newPage(this.numPages, 595,842);}

A4 size is 21 cm x 29,7 cm, so 595 x 842 is the closest conversion when you need to enter dimensions in points.

[djbats]

..fab, I imagined this the case, many thanks for all your help with this.