Desktop/PC signing
Recommended browser: Google Chrome
Why Chrome? SignNow is optimized for Chrome, which offers the most stable performance and full feature support.
Update your browser: Keep Chrome up to date for maximum compatibility and security. You can update it here: Update Chrome
Supported Operating Systems
Windows 8 or above
macOS X or above
Other modern operating systems are generally compatible as long as you use an updated version of Chrome.
Recommended screen resolution: 1024 x 768 or higher for clear viewing and proper field alignment.
Mobile Signing
If you’re signing documents using the SignNow mobile app:
Keep your operating system updated for the best performance and security.
Update your SignNow app regularly to access new features and bug fixes.
Apple Devices
iOS version 11 or above (iPhone, iPad Touch)
iPad Air, iPad mini, iPad Pro (2018) with iOS 11+
iPad OS 13 or above
Android Devices
Android version 5 or above
Mobile Web Browsers (if not using the app)
Google Chrome
Safari
Why These Requirements Matter
Security: Up-to-date browsers and apps reduce the risk of vulnerabilities.
Performance: Meeting the minimum requirements prevents delays during signing.
Compatibility: Ensures that advanced features (like templates, authentication, or payment requests) function correctly.
📝 If you ever encounter issues with a signing session, check your browser or app version first—updating often solves most problems.
Self-Troubleshooting Before Contacting Support
If you run into issues while signing documents in SignNow, try these checks first. Providing this information to SignNow support will also help us resolve your issue faster.
For Browser Users
Confirm which browser you are using (Chrome, Safari, Firefox, Edge).
Check the browser version (is it up to date?).
Clear cache/cookies and try again.
Try opening the document in Incognito/Private mode.
Note whether extensions or ad-blockers are enabled (these can sometimes interfere).
Take a screenshot of any error message you see.
For Mobile App Users
Confirm your OS (iOS/Android) and version.
Confirm the SignNow app version (is it the latest from the App Store/Google Play?).
Restart the app or device and retry.
Check your internet connection (Wi-Fi vs. mobile data).
Take a screenshot or screen recording of the issue.
Once you have captured all relevant information, please contact us through the ticket portal or live chat for further investigation.
Expected Behavior
Some elements of the signing session are configured by the document sender and cannot be changed by SignNow support or the recipient. These include:
Required fields (if a field is mandatory, only the sender can adjust this).
Session timeouts or activity length.
Password-protected documents.
Multi-factor authentication steps (SMS, phone, etc.).
If you believe a field shouldn’t be required, or if you’re having trouble with authentication or document access, it’s best to check with the document originator first before reaching out to SignNow support.