# hyperref: can I control how to display the PDF?

I use the method described in this link for getting hyperlinks from different PDF files:

Can you have hyperlinks to locations in different PDFs?

I would like to remain with two open PDF files, source and destination. When I use the described method, the source PDF is replaced by the target PDF.

Can I control how to display the PDF files?

Option pdfnewwindow controls this behaviour, e.g.:

\usepackage[pdfnewwindow]{hyperref}


or

\hypersetup{pdfnewwindow}


The latter can also be used in a local group. The setting is disabled by setting to false:

\hypersetup{pdfnewwindow=false}

• \documentclass{book} \usepackage{hyperref} \usepackage[pdfnewwindow]{hyperref} \begin{document} And I have result: Option clash for package hyperref. – Jana May 7 '13 at 12:30
• @Jana You cannot load a LaTeX package with new options after it is loaded (the exception is package fontenc). Use the options in the first call of \usepackage or use \hypersetup for this option. – Heiko Oberdiek May 7 '13 at 12:44
• Heiko, and how I can control position and size of new oppened PDFs window? – Jana May 7 '13 at 12:56
• @Jana You cannot. It is a matter of the PDF viewer, window manager, ...; but it is not a property that can be set in the PDF file. – Heiko Oberdiek May 7 '13 at 13:05