- Microsoft Windows 10 using Internet Explorer 11, Microsoft Edge, Firefox, or Chrome
- Microsoft Windows 8 using Internet Explorer 10 or later, Firefox, or Chrome
- Microsoft Windows 7 using Internet Explorer 10 or later, Firefox, or Chrome
- Mac OS X v10.9 or later using Safari 7 or later, Firefox, or Chrome
* Mobile app access and functionality varies by service.
† The Send for Signature tool – which is included in Adobe PDF Pack – relies on cloud services provided by Adobe Sign and has unique browser requirements. View requirements.