The default page size of PDFreactor is DIN A4 in portrait mode. Page size and orientation of a PDF generated with PDFreactor can be setup using CSS as follows (e.g. letter):


@page {
    size: letter;
}


You could also set a custom width and height:


@page{    
    size: 4.25in 6.75in;
}


The page orientation can be set as follows:


@page{
    size: letter landscape;
}


More information on how to set the page size and orientation can be found in our manual.


The above samples set the size and orientation of all pages in the resulting PDF. You can of course also change the size/orientation of specific pages by using more specific @page selectors:

E.g.: Custom format (landscape) for the first page, letter size and portrait for the rest of the pages:


@page:first {
    size: 8.00in 5.00in;
}
@page {
    size: letter;
}


You can find more information how to select specific pages in our manual.