How to Use Both Digital and Image Signatures in Acrobat XI
Question details
The user wants to know if Acrobat XI allows retaining both an encrypted certificate signature and an image-based signature within secured or fillable PDF documents.
- Product
- Adobe Acrobat XI
- Device & OS
- not provided
- Scenario
- Signing a secured or fillable PDF form requiring both a visible handwritten-style signature and a secure digital certificate.
- Observed behavior
- Creating or selecting a certificate-based signature alters document permissions and changes the available Place Signature options for image-based signatures.
Always create a duplicate copy of your fillable form before testing signature workflows, as applying a digital certificate can permanently lock document permissions and prevent further edits.
Configure Separate Signature Appearances and Order Your Workflow
Apply your image signature before the digital certificate, or configure the digital signature profile to include your handwritten image.
Acrobat XI supports different signature workflows, but they can conflict if applied in the wrong order. Because certificate-based signatures are designed to prevent document tampering, applying one often locks the file, disabling the standard 'Place Signature' option for subsequent image signatures.
To bypass this, you can either apply the image signature first or embed the image directly into your digital certificate's appearance settings.
Open your PDF in Acrobat XI. Use the 'Place Signature' tool to add your image-based signature before applying any digital certificates.
Go to Edit > Preferences > Signatures. Under 'Creation & Appearance', click 'More'. Create a new appearance and import your image signature so it displays alongside the certificate data.
Use the 'Sign with Certificate' tool to apply the final encrypted signature. Doing this last ensures the document is securely locked only after all visual elements are placed.
Manage PDF Signatures Securely with WPS Office
If you are experiencing workflow conflicts in Acrobat XI, WPS Office offers an intuitive PDF editor that makes it incredibly simple to apply standard image signatures and secure digital certificates without complicated permission lockouts.
- 1. Open your PDF: Launch WPS Office and open the fillable or secured PDF document.
- 2. Insert Image Signature: Navigate to the 'Fill & Sign' or 'Insert' tab, click 'Sign', and place your handwritten image signature anywhere on the document.
- 3. Apply Digital Signature: Switch to the 'Protect' tab and select 'Digital Signature' to add an encrypted certificate, securing the document against future alterations.
Frequently Asked Questions
Why does my 'Place Signature' option disappear in Acrobat XI?
When you apply an encrypted digital certificate signature, Acrobat often restricts document permissions to prevent unauthorized tampering. This security measure intentionally disables standard markup tools, including the 'Place Signature' option for images.
Can I combine an image and a digital certificate into one signature?
Yes. In Acrobat XI, you can customize the appearance of your digital certificate signature by navigating to Preferences > Signatures. From there, you can import an image of your handwritten signature to display alongside the encrypted certificate details.
Does adding an image signature provide legal document security?
No. An image signature functions essentially as a visual stamp and does not encrypt the file or prevent tampering. For verifiable document security and legal compliance, a certificate-based digital signature is required.
What happens if a document has IRM protection enabled?
Information Rights Management (IRM) limits specific actions on a PDF file. Depending on the exact IRM policies applied by the document author, you may be completely blocked from adding image signatures, filling out form fields, or altering the file.
