Adobe Reader is a free program for viewing and commenting on PDF documents. Editing is not supported, you can only set aside various notes, annotations, signatures, etc.
The program does not weigh much and is installed quite quickly. Once installed, you can open PDF documents by double-clicking on them. In the upper right corner there are three tabs: Tools, Signature and Comments. All of them serve to review (check) the document and add their comments. Thus, it is possible to establish communication between different developers of the document, between the company and the client, etc.
There are quite a few tools for marking. These are geometric shapes, and various text notes, handwritten signatures and even voice messages. The program provides everything you need for effective collaboration.
Because PDF format is tightly integrated into the office document environment, Adobe Reader is required on almost every computer. Free of charge of this software product leaves almost no chance for competitors. There's one good alternative, though.
- integration into the Adobe Document Cloud environment.