How to add an A4 page?

[Yusuke SAKATA]

Hi, everybody.

I want to append A4 page to an existing pdf file.

I tried as follows.

  pdf = PDF.read("sample.pdf")
  if (pdf.pages.count % 2) ==1
    puts ("It has odd pages.  Appending new page.")
    pdf.append_page
  end

This script add a new page if the number of pages is odd.

Problem is the added page is larger than A4.

Is there anyway to add a blank A4 page?

I wish if it had a pdf join command. 

[Guillaume Delugré]

Hello Yusuke,

I fixed this bug in the latest revision of the repository.

By the way, what do you call a PDF "join" command?

Guillaume