You can download this Free cross-platform PDF Reader from the link below: Download PDF Studio Viewer You can set the JavaScript settings to on, off or with an option to prompt when you open a PDF documents that contains JavaScript, under File > Preferences > JavaScript. PDF Studio Viewer also has support for JavaScript for calculation, formatting and validation of form fields. PDF Studio Viewer 2018 supports filling interactive forms (acroforms and static xfa forms) including: It is simple to type in text into an interactive form field, then tab to the next field. PDF Studio Viewer allows to easily fill interactive forms for free! This announcement is surely going to make many of our PDF Studio Viewer users very happy! The new version of Qoppa’s Free PDF Reader, PDF Studio Viewer 2018, is adding new form filling function. This feature is available for users on all platforms: Windows, MacOS and Linux!