Ranked in these QuestionsQuestion Ranking
Pro Can directly convert Outlook e-mails to PDFs via a plugin
Single messages, conversations and folders can be converted.
Pro Reasonable OCR capabilities
Pro Nitro Cloud simplifies sharing, collaboration and getting documents signed
Nitro offers a cloud-service, called Nitro Cloud. Nitro can upload a PDF to the Nitro Cloud and notify other people via email that they can either view or edit a PDF or have to sign a PDF. If they need to sign a document they will be able to do it from the interface that's provided by the Nitro Cloud.
Pro Clean, ribbon-like user interface
Nitro Pro has an interface that will be immediately familiar to anyone who's used Microsoft Office products.
Pro Good support for e-signatures
Nitro allows signing a document in three ways - using a webcam, writing it by hand or adding a signature from a file. It also allows you to send out files for signing via their cloud service, Nitro Cloud.
Pro Super-simple MS Office file conversion
To convert an MS Office file to a PDF, simply drag and drop the file on the Nitro Pro shortcut.
Pro Allows combining PDFs
Pro Allows batch printing multiple files
Pro Offers a trial version
Con Pricey, bloated addvertising for nothing, frequent crashing
Nitro Pro is available for $140.
Con Incomplete MS Office document to PDF conversion
Some attributes, like form fields don't get converted.