- Microsoft Windows 10 using Internet Explorer 11, Microsoft Edge, Firefox, or Chrome
- Microsoft Windows 7 using Internet Explorer 11 or later, Firefox, or Chrome
- macOS X v10.12 or later using Safari 11 or later, Firefox, or Chrome
* Mobile app access and functionality varies by service.
† The Send for Signature tool – which is included in Adobe Acrobat PDF Pack – relies on cloud services provided by Adobe Sign and has unique browser requirements. View requirements.