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How to View Validated Digital Signatures in PDF on Mobile Devices
Question details
The user is trying to view the green check mark that indicates a validated digital signature on a PDF using a mobile app, but the feature appears to be missing.
- Product
- Adobe Acrobat Mobile App
- Device & OS
- Mobile
- Scenario
- Opening a digitally signed PDF file on a mobile phone or tablet to verify the document's authenticity and signature validity.
- Observed behavior
- The validation check mark is visible on the desktop version of Acrobat but does not appear when opening the same document on a mobile device.
Ensure you have access to a desktop or laptop computer, as mobile PDF readers currently lack advanced digital certificate verification capabilities.
Use a Desktop PDF Application to Verify Signatures
Since mobile apps currently lack signature verification features, switching to a desktop application is the only reliable way to view the validation check mark.
The features available in mobile applications often differ from their desktop counterparts to optimize performance and usability on smaller screens. Digital certificate verification is a complex process that is currently restricted to desktop environments.
Send the digitally signed PDF file from your mobile device to your computer using email, a messaging app, or a cloud storage service like Google Drive.
Launch a desktop PDF application, such as Adobe Acrobat or WPS Office, on your Windows or Mac computer and open the transferred PDF file.
Click on the 'Signature Panel' button or the digital signature icon on the side panel to view the validation status, certificate details, and the green check mark.
Submit a Feature Request to the Developer
If mobile signature verification is critical for your workflow, you can formally request this feature from the development team for future updates.
Effortlessly Manage and Sign PDFs with WPS Office
While some mobile applications have limitations with digital signatures, WPS Office provides a robust, lightweight, and comprehensive PDF toolset for desktop users to easily view, manage, and verify document security without expensive subscriptions.
- 1. Download and install: Visit the official WPS Office website to download the free application for your Windows or Mac computer.
- 2. Open your PDF file: Launch WPS Office and drag and drop your digitally signed PDF into the workspace.
- 3. View signatures securely: Navigate to the Protect or PDF tab to access digital signature tools and verify document authenticity seamlessly.
Frequently Asked Questions
Why can't I see the green check mark on my mobile PDF reader?
Most mobile PDF applications, including the Acrobat mobile app, currently do not support the advanced certificate verification required to display the validation check mark. This feature is restricted to desktop versions due to operating system constraints on mobile platforms.
Are my digitally signed PDFs still secure if opened on mobile?
Yes, the document's security and the cryptographic signature remain intact even if you open it on a mobile device. The mobile application simply lacks the user interface and backend processing to verify and display the signature's validity status.
How can I verify a signed document if I don't have a computer with me?
Unfortunately, full cryptographic verification of digital signatures currently requires a desktop PDF reader. If you are away from a computer, you may need to use remote desktop software to access your PC, or ask a colleague with a computer to verify the signature for you.
