Yes, but some mobile apps may not support full signature validation:

• Use Adobe Acrobat Reader mobile
• Ensure your app is updated
• For complete validation, use a desktop PDF viewer

You can view expiry information in the certificate details:

• Open signature properties
• Click "Show Signer’s Certificate"
• Check the validity date of the certificate

No, scanned Aadhaar copies lack official digital signatures:

• e-Aadhaar includes verifiable UIDAI certification
• Scans cannot confirm authenticity without manual attestation

You must add the signer to your trusted certificates list:

• Open certificate settings in Adobe Acrobat
• Manually trust the certificate and save settings

Yes, if accepted by the requesting authority:

• Use e-signature on copies only when specifically permitted
• Avoid modifying original e-Aadhaar content

You can add a signature using digital tools:

• Open in Acrobat
• Use "Fill & Sign" to draw, type or insert a digital signature

Yes, many employers accept digitally signed Aadhaar copies:

• Include signed Aadhaar as part of your digital document bundle
• Ensure validity of UIDAI signature

Yes, altering the original may break the certification:

• Sign on a copy, not the original
• Validate the UIDAI signature before sharing

Only if the Aadhaar is not altered during merging:

• Use merge tools that maintain digital signature integrity
• Always recheck the certificate after merging

Add protection using encryption or passwords:

• Use trusted tools to apply PDF permissions
• Limit access to sensitive data during sharing