Javascript to add A4 page to end of odd numbered PDFs

Forum|Forum|3 years ago
October 6, 2022
6 replies
1258 views

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?

This topic has been closed for replies.

JR Boulay

Community Expert

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.

Acrobate du PDF, InDesigner et Photoshopographe

D

djbatsAuthor

Known Participant

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

JR Boulay

Community Expert

Try this one:

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

Acrobate du PDF, InDesigner et Photoshopographe

D

djbatsAuthor

Known Participant

..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

Community Expert

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

This is not A4 size 😉

Use this instead:

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

Acrobate du PDF, InDesigner et Photoshopographe

try67

Community Expert

That's more accurate, true...

D

djbatsAuthor

Known Participant

.. 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.