PDF Security & Access Issues

How to Add a Cloud-Based Digital Signature in Acrobat Pro DC

Maira MehtabMaira Mehtab Oct 28, 2026 868 views

Question details

The user is unable to find the option to add a cloud-based digital signature (such as InfoCert) using the Fill & Sign tool in Adobe Acrobat Pro DC.

How to Add a Cloud-Based Digital Signature in Acrobat Pro DC
Product
Adobe Acrobat Pro DC
Device & OS
not provided
Scenario
A user with an Acrobat Pro DC subscription and a cloud-based signature provider needs to digitally sign a PDF document.
Observed behavior
The Add Digital Signature option is missing from the Fill & Sign workflow. Additionally, form fields may display an unexpected highlight color.
Before you start

Ensure that your cloud-based digital signature provider (e.g., InfoCert) is properly configured and that your Adobe Acrobat Pro DC software is up to date.

Solution 1Recommended

Use the Certificates Tool for Digital Signatures

Bypass the Fill & Sign tool and use the dedicated Certificates tool to apply a cloud-based digital signature.

The Fill & Sign feature in Adobe Acrobat is intended for basic electronic signatures. To use a secure, certificate-based cloud signature, you must use the specific Certificates workflow.

1
Open the Certificates Tool

Open your PDF document in Acrobat Pro DC, click on the Tools tab at the top of the window, and select Certificates.

2
Select Digitally Sign

Click on Digitally Sign from the Certificates toolbar that appears at the top of your document view.

3
Draw the Signature Area

Click and drag your mouse cursor to draw the rectangular area where you want your digital signature to be displayed on the page.

4
Choose the Cloud Provider

Follow the on-screen prompts to select your configured cloud signature provider to complete the authentication and signing process.

Use the Certificates Tool for Digital Signatures
Pre-existing Signature Fields: If the PDF already contains a pre-placed digital-signature field, simply open the document and click directly on that field to trigger the cloud signature provider selection.
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  1. 1. Open Your PDF Document: Launch WPS Office and open the PDF file you need to review and sign.
  2. 2. Access the Fill & Sign Feature: Navigate to the PDF tab and select the Fill & Sign tool from the top menu.
  3. 3. Create Your Signature: Click on the Sign option to draw, type, or upload an image of your signature.
  4. 4. Place and Save: Drag the newly created signature to the correct location on the page, adjust its size, and save your document.
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Frequently Asked Questions

Why is the digital signature option missing from Adobe Fill & Sign?

The Fill & Sign tool is explicitly built for standard electronic signatures. For secure, certificate-based or cloud-based digital signatures, Adobe requires you to use the dedicated Certificates tool instead.

Can I use a cloud signature provider like InfoCert in Adobe Reader?

Yes. If the PDF document has already been prepared with a designated digital-signature field, you can open it in the free Adobe Reader and simply click the field to choose your available cloud signature provider.

How do I remove the blue background color from PDF signature fields?

The background color is a local form highlight feature. You can turn it off by navigating to Edit > Preferences > Forms (or Acrobat > Preferences > Forms on a Mac) and modifying the highlight settings. This only affects your view, not the actual file.