Hi all,
In the page http://code.xwiki.org/xwiki/bin/view/Snippets/GeneratePdfForChildrenPagesSnippet I read:
Since XWiki 1.2 it's possible to export several pages as PDF or RTF, using the currently undocumented includechilds=1, includelinks=1 and pagebreaks=1 request parameters. See XWIKI-1289 to follow the status on this.
#submenuitem($doc.getURL("export", "format=pdf&$docvariant") $msg.get("core.menu.export.pdf"))
## Check revision option
#if ($request.rev)