Best practices for documents with multiple digital signatures | Revu 2017 & below

Relevant Product

Bluebeam Revu


When digitally signing a document, you may find the need to include more than one signature on it. Starting with Revu 11.6, two different methods of signing PDFs are supported. Each is a little different and has its own benefits. For this article, I will assume that you already have a Digital ID created and that you have some familiarity with digitally signing a document in Revu. If you are not, check out the Digital Signatures and Creating a New Digital ID tutorials.


Add Multiple Digital Signature Fields Without Certification

Adding a digital signature field (Document > Signatures > Add Signature Field ) is the simplest option, and gives everyone the flexibility to create their own signature fields or apply a signature within an existing field.

This method doesn’t prevent further changes from being made to the PDF, but changes made after signing will invalidate the signatures. They can be re-validated, but you’ll need to watch out for it. If you don’t want to allow changes after signing, or if you want to protect the signatures, consider using the method below which certifies the document after all the signature fields have been created.

Certify a Document for Multiple Signatures With Restrictions

This option allows you, the “certifier”, to prepare the documents for signing and and then restrict the other signers from making changes other than what you specify is allowed. You will create all the necessary digital signature fields and then certify the document before any signatures can be applied to the PDF. After the document is certified, you can choose one of these settings for the signers:

  1. No changes allowed
  2. Fill in forms and digital signatures
  3. Markups, fill in forms and digital signatures.

Once a document is certified, all toolbars and menus of the restricted features become disabled in Revu, Acrobat and other PDF viewers and editors.

A Working Example

In the following example, there are two signatures that will be added by Bill Jones and Frank Smith. Bill Jones is the “certifier” of the document. He’ll add the fields and certify the document in one of the signature fields. Frank Smith will then receive the document and add his signature.

Adding the Signature Fields

  1. On the Command bar, click Document > Signatures > Add Signature Field .
  2. Click and drag to draw a rectangle for the first signature.
  3. Click Add Signature Field again .
  4. Click and drag a second rectangle for the second signature.

Now Bill Jones will certify and sign the document.

  1. Click the Signature field next to Representative #1.
  2. In the Sign dialog box, choose the Digital ID to use (in this case, Bill Jones) and type the password.
  3. In the Signature Type section, check Document Certification.
  4. Under Permitted changes after certifying, choose Fill in forms and digital signatures from the list.
  5. Fill in the options and appearance as desired.
  6. Click OK.

The document will be saved and sent to Frank Smith so he can sign it. If Bill Jones’s public certificate is accessible to Frank, Bill Jones’s signature will validate, indicating that Bill did in fact certify this version of the document. At this point Frank will add his signature.

Now Frank Smith will sign the document.

    1. Click the Signature field next to Representative #2.

      Note: Frank may only sign this document, not certify it.

    2. Select the Digital ID and enter the password.
    3. Choose the desired appearance.
    4. Click OK.

The Save dialog box will appear. Frank will choose a location and name, then click OK. In the newly saved document, the signature fields now indicate that there are two signatures that have been validated and the document has not been altered.

This method provides the most protection against accidentally invalidating the signatures.



Relevant Product
Bluebeam Revu

When digitally signing a document, you may find the need to include more than one signature on it. Starting with Revu 11.6, two different methods of signing PDFs are supported. Each is a little different and has its own benefits. For this article, I will assume that you already have a Digital ID created and that you have some familiarity with digitally signing a document in Revu. If you are not, check out the Digital Signatures and Creating a New Digital ID tutorials.

Add Multiple Digital Signature Fields Without Certification
Adding a digital signature field ( > Signatures > Add Signature Field ) is the simplest option, and gives everyone the flexibility to create their own signature fields or apply a signature within an existing field.

This method doesn’t prevent further changes from being made to the PDF, but changes made after signing will invalidate the signatures. They can be re-validated, but you’ll need to watch out for it. If you do

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