Trial version requires credit card info and physical address: Granted, Adobe products have been historically prone to piracy, which is one of the reasons why lot of PDFs on a subscription model. Document comparison: This is more.
App Info. In some cases, all the functionality is disabled until the license is purchased. Sharing PDFs and gathering comments is as simple as sending an email � but with far more control, tracking, and no messy attachments. While some tools can be opened without requiring you to open a document, the rest can only be used after you open a document.
