You can modify alignment, style, height, rotation, width (for multiple-line text), and whether it uses annotative scaling.
Modes control tag visibility, whether the value is a constant or a variable, the use of multiple-line text, the verification requirement, and position locking. For example, if you change an attribute tag from "Cost" to "Unit Cost," a value entered at the prompt (such as 19.99) is unaffected. These changes do not affect the values entered when existing block references were inserted.
As the desktop subscription model takes over, it makes less sense to have these big annual releases that force the traditional, lengthy, uninstall, migrate, & install process.Modify Attribute Definitions With the Block Attribute Manager As time goes on, we believe Autodesk will start to add more new features in this way until a point down the road where the big annual releases are a thing of the past. *** Some of the features listed above were fully or partially implemented in the AutoCAD 2017.1 mid-year update.
This means when you convert the PDF back to CAD, the text is no longer Text. However, when SHX based text is exported to PDF, it is translated to basic geometry such as lines.
Once again, CAD Panacea is giving you a quick rundown of the new features in this new version. Today, Autodesk announces the new AutoCAD 2018 version.