I came through a website here: https://web.archive.org/web/20141019075926/http://perkinswill.com:80/mybook where visitors to the site can select specific project pages to add to a “book”, which they can download as a PDF.
For example, https://perkinswill.com/projects/civic-and-cultural/, you can add any project in your book. In addition, you can customize the book title when send to your email address.
I want to know how this is achieved. What programming is used here? Any Drupal module? Can WordPress achieve the same functionality?
Thank you!
The website is built using php. You can know from url if you append index.php page opens. If you want to reconfirm you should evaluate header sent by server.
If you want to edit PDF file your self there are many 3rd party libraries available to edit PDF files using php. You can look at this question for more information on editing PDF