en English
X

Select Language

Powered by Google TranslateTranslate

We hope you will find the Google translation service helpful, but we don’t promise that Google’s translation will be accurate or complete. You should not rely on Google’s translation. English is the official language of our site.

en English
X

Select Language

Powered by Google TranslateTranslate

We hope you will find the Google translation service helpful, but we don’t promise that Google’s translation will be accurate or complete. You should not rely on Google’s translation. English is the official language of our site.

Digitally Signing Microsoft Office 365 Documents

Signed DocumentWith a Business Identity Email, Client Authentication, and Document Signing Certificate from SSL.com, you can digitally sign your Microsoft Office documents to assure recipients that:

  • You are the authentic signer of the document.
  • The content of the document has not been altered since it was signed.

Document signatures in Microsoft Office can be either visible in the document or invisible. Word and Excel both support visible signatures. Word, Excel, and PowerPoint all support invisible signatures. Click the links below to view instructions on installing your certificate, creating visible and invisible signatures, and deleting signatures.

Note: The features described in this Guide are available only in the Windows version of Office 365. Office 365 for macOS does not currently support document signing.

Adding a Visible Signature Line to a Microsoft Word Document or Excel Workbook:

Note: The screenshots in this section are from Word, but the procedure in Excel is identical.
  1. Signing an Office document currently requires that your document signing certificate be installed on a YubiKey FIPS USB token. Make sure the YubiKey is inserted in your computer.
    YubiKey FIPS
  2. Place the cursor where you would like the signature to appear. Then, click the Add Signature Line drop-down menu, located in the Text group of the Insert toolbar and choose Microsoft Office Signature Line.
    Add Signature Line
  3. The Signature Setup dialog box will appear. Here you can specify the suggested signer’s name, title, and/or email address, and add instructions to the signer. The two checkboxes below the text field can be used to allow the signer to add a comments when signing and show the signing date in the signature line. Click OK when you have entered all of the information for the signature line.
    Signature Setup
  4. The new signature line will appear in the file with any name and/or title information entered in the previous step below it.
    signature line
  5. To sign the document, right-click the signature line and select Sign from the menu.
    Sign
  6. The Sign dialog box will appear. For a printed signature, simply type your name to the right of the X as shown below, or draw a signature with your pointing device or touchscreen. If you have an image of your handwritten signature, you can use that instead by clicking the Select Image… link and navigating to the image file.
    type name
  7. Clicking the See additional information about what you are signing… link at the top of the dialog box will open a dialog box showing metadata that will be included in the signature.
    see additional information
    Additional Information
  8. The certificate which will be used to sign the file is shown near the bottom of the dialog box. Clicking the Change button will open a dialog box for choosing from available certificates. In this case only one document-signing certificate is installed so only one choice is shown.
    change certificate
    select certificate
  9. Clicking the Details button will open a dialog box which can be used to add title and address information.
    Details button
    Additional Signing Information
  10. If you checked Allow the signer to add comments in the Sign dialog when setting up the signature line, two additional fields will be present:
    Commitment Type and Purpose
    • The Commitment Type drop-down lets you specify if you created and/or approved the document.
      set commitment type
    • The Purpose for signing this document text field allows you to explicitly specify the purpose for signing.
      Purpose
  11. When all of your signing information is entered and correct, click the Sign button.
    Sign
  12. Enter your YubiKey PIN and click the OK button.
    Enter YubiKey PIN
  13. A dialog box will appear confirming that the document has been signed. Click the OK button to close it.
    Signature Confirmation
  14. A message will appear at the top of the screen indicating that the document has been marked as final, and the signature line will be marked as signed at the bottom. If you chose to display the date with the signature it will be shown at the top right of the signature line.
    Marked as Final
    Important: editing a document after it has been signed will remove any existing signatures from it.
  15. The Signatures button will also appear at the bottom of the document window. Clicking it will open a panel detailing document signatures on the right side of the screen.
    Signatures button
    Signatures panel
  16. When the signed document is opened in Word, users will be alerted that the document is signed.
    Document contains valid signatures

Adding Invisible Signatures in Word, Excel, or PowerPoint

Note: The screenshots in this section are from Word, but the procedure in Excel and PowerPoint is identical.
  1. SSL.com ships document signing certificates on YubiKey FIPS USB tokens. Make sure the YubiKey is inserted in your computer.
    YubiKey FIPS
  2. Click the File tab.
    File tab
  3. Select Info.
    Info
  4. Click Protect Document (Word), Protect Workbook (Excel), or Protect Presentation (PowerPoint), then select Add a Digital Signature from the menu.
    Add a Digital Signature
  5. The Sign dialog box will appear.
    Sign
  6. Clicking See additional information about what you are signing will open a dialog box showing metadata that will be included in the signature.
    see additional information
    Additional Information
  7. The Commitment Type drop-down lets you specify if you created and/or approved the document.

    set commitment type
  8. The Purpose for signing this document text field allows you to explicitly specify the purpose for signing.
    Purpose
  9. The certificate which will be used to sign the file is shown near the bottom of the dialog box. Clicking the Change button will open a dialog box for choosing from available certificates. In this case only one document-signing certificate is installed so only one choice is shown.
    change certificate
    select certificate
  10. Clicking the Details button will open a dialog box which can be used to add title and address information.
    Details button
    Additional Signing Information
  11. When all of your signing information is entered and correct, click the Sign button.
    Sign
  12. Enter your YubiKey PIN and click the OK button.
    Enter YubiKey PIN
  13. A dialog box will appear confirming that the document has been signed. Click the OK button to close it.
    Signature Confirmation
  14. Messages that the document has been signed and marked as final will appear.
    Document signed and marked as final
    Important: editing a document after it has been signed will remove any existing signatures from it.
  15. The Signatures button will also appear at the bottom of the document window. Clicking it will open a panel detailing document signatures on the right side of the screen.
    Signatures button
    Signatures panel
  16. When the signed document is opened in Word, users will be alerted that the document is signed.
    Document contains valid signatures

Removing Signatures

Removing a Visible Signature

  1. Right-click the signature line and choose Remove Signature from the menu.
    Remove signature
  2. A dialog box will appear. Click the Yes button to confirm that you want to remove the signature.
    Remove signature
  3. A dialog box confirming that the signature has been removed will appear. Click OK to close the box.
    Signature Removed

Removing an Invisible Signature

  1. Click the Signatures button at the bottom of the window.
    Signatures button
  2. A pane showing the document’s signatures will appear on the right side of the window.
    Signatures panel
  3. Click the black triangle to the right of the certificate you want to remove, choose Remove Signature from the menu, then confirm that you want to remove it.
    Remove Signature
  4. A dialog box will appear. Click the Yes button to confirm that you want to remove the signature.
    Remove signature
  5. A dialog box confirming that the signature has been removed will appear. Click OK to close the box.
    Signature Removed

SSL.com’s Business Identity certificates offer secure S/MIME email protection, trusted digital signatures for Adobe PDF and Microsoft Office documents, and PKI-based client authentication, all for as low as $249.67 per year.

ORDER NOW

Share on twitter
Twitter
Share on facebook
Facebook
Share on linkedin
LinkedIn
Share on reddit
Reddit
Share on email
Email