When you update a PDF do one automatically get the new version download link or one have to pay again to get the updated version? What kind of updates should I expect?
When a PDF is updated, an email is automatically generated and sent to the address you use to log in to your paizo.com account. The download link in your My Downloads page is automatically updated to point to the latest version of the PDF/download on our servers. Updates generally include new content to match the latest printing, resolving of any technical/editorial errors, or any additions to the product.