Landscape is the most used and most flexible type of PDF for your quote. See all the settings in the general 7.5.1.1 Manage Quote Preferences description and the 7.5.7.1 Overview of custom labels on PDF.
with Logo, document type: Proposal and summary of the offering:
With details of the offer, order number, addresses:
with Notes, Technical Specifications, Delivery Advertising Medium information, payment schedule and the price summary.
with conditions of payment, and the signature block(s).