SharePoint 2013 - Search for subsite pages and PDFs

I have read the first 10 articles on Google about how to create a custom search in SharePoint 2013, but none of them talk about searching for pages. I don't want to search, everything, people, conversations, or videos. I simply want to

1. Search for any page within a specific Subsite (i.e. /mysubsite/)


2. Pdfs within a specific Document Library (/SiteCollectionDocuments/)

Are these 2 scenarios possible in SharePoint 2013, if so how?