roneddy

Solution options for mapping signer to multiple signature fields

1 votes

Hello,

FYI, I saw a similar question asked in 2016, but I wanted to post this new one to see if there is anything available today or in the roadmap that might help us: Text Anchor - multiple locations | OneSpan Community Platform

Background: We are in the process of converting one of our internal clients from an older signing process to a newer one, using OneSpan SaaS, and we are running into trouble mapping signers to signature fields with your product due to the complexity of the business rules involved.  We have some control over the rendering of the PDFs we use here, but are unable to use PDF form fields for signature positioning in most cases because not all of our forms are owned by us.  So we prefer to rely on data rendered onto the form to map the signatures,  such as text anchors, as this gives our business system the freedom to assign different text anchors depending on business rules.  We use hidden text most of the time for this purpose.

Our Problem: We want to be able to map a single signer to multiple signature fields on a document when setting up a transaction in your product, without knowing the specifics of how many signature fields for the signer exist or where they are on the document.  This is important to maintain a decoupling of our document generation processing from our signing business rules processing.  We are currently using text anchors in our signing process, and the technology we use today is able to successfully map a single signer to multiple fields as long as the same anchor text is used on each applicable signature (e.g. |borrower01|) within a document.  Assume we do not have the ability at this point to interrogate the PDF with 3rd party tools.

Our Question: Does your product support a signature field positioning strategy (preferably text anchor but we are open to others) which would allow us to solve this problem so we can send a single piece of data to map a signer to multiple fields rather than having unique text in every field/

Here are some ideas for what we would consider ideal situations, however I fully admit we may not know about features that could work better, so please don't let this limit your response.

  • Example 1: Payload indicating "Ron" signs each signature field containing anchor text "borrower01"
  • Example 2: Payload indicating "Ron" signs each signature field containing anchor text matching the pattern "borrower01_*"

Thanks in advance!

Ron


Approved Answer

Reply to: Solution options for mapping signer to multiple signature fields

1 votes

Hi Ron,

 

It's great to hear from you!

If you are looking for the capability to add dynamic number of fields without knowing the number and the position of the signatures/fields, using Text Tags instead of Text Anchor could be your choice:

#1 Since you have the ability to add hidden text to the generated document

#2 You only need to add the same text tag across the whole document

Here I've attached an example word file where I added the same tag "{{esl:Ron:signature:size(200,40)}}" to the left bottom corner of each page. If you send the transaction with below payload, all signatures will be extracted automatically (Note the role name in the payload needs to match the name specified in the tag):
{
  "documents": [
    {
      "id": "sample-contract",
      "name": "Test Document",
      "extract": true,
      "extractionTypes": [
        "TEXT_TAGS"
      ]
    }
  ],
  "status": "DRAFT",
  "type": "PACKAGE",
  "roles": [
    {
      "id": "Ron",
      "type": "SIGNER",
      "signers": [
        {
          "email": "[email protected]",
          "firstName": "John",
          "lastName": "Smith",
          "id": "Ron"
        }
      ],
      "name": "Ron"
    }
  ],
  "name": "Text Tags Example Package"
}

 

Please let me know if this fits your requirement.

 

Duo

Duo Liang OneSpan Evangelism and Partner Integrations Developer


Attachments

Reply to: Solution options for mapping signer to multiple signature fields

0 votes

Thanks Duo for the information on this.  It appears the zip you attached was empty (22 bytes in size), but I think I get the idea here. For some reason though when I read about text tags I misunderstood, so I just want to confirm I understood you correctly now.  This is using text on the document and not pdf fields for its location, is that right? I am 99% sure that is what you are saying, but since I can't try it out myself at this second and it is important for this use case that it locates based on content on the PDF I just want to make sure.

So if I have a PDF template with a signature block, it sounds like if we were to render a string on top of it (or on top of multiple signature fields for that matter) with white text as follows:

{{esl:Signer1:signature:size(200,40)}}

Then OneSpan will place a signature field in each location provided we sent a signer with role of 'Signer1' in our API call. 

Is that correct?


Reply to: Solution options for mapping signer to multiple signature fields

0 votes

Hi Ron,

 

What you described is exactly how Text Tags work. It's based on the text on the document, which is similar to the text anchor but with a certain syntax. And because you have already defined the field type, signer role, field size, etc. in the syntax, it saves the complexity of building the approvals and fields nodes in JSON.

 

Duo

Duo Liang OneSpan Evangelism and Partner Integrations Developer


Reply to: Solution options for mapping signer to multiple signature fields

0 votes

Thanks Duo,

One last question for you.  Let's say we already have a process which uses anchor text values.  And lets say there are LOTS of signatures across LOTS of documents and that we have ensured all the anchor texts are unique and everything is working fine, functionally speaking.  If we were to convert this to the text tag solution, certainly our call into your API would be greatly simplified, but do you know if it would have any performance ramifications, good or bad?  We have found with other signing processes implemented at the bank using different technology stacks that certain types of positioning are (much) faster or (much) slower than others.  Can you comment on the differences pertaining to anchor vs text here?

Thanks again!


Reply to: Solution options for mapping signer to multiple signature fields

0 votes

Hi Ron,

 

I am not an expert in document engine, but from the best of my knowledge, the internal workings and technologies being used between Text Tags and Text Anchor should be similar - detect text in the document and process accordingly. Therefore, you shouldn't experience very obvious performance difference in regular scenarios. But if we are talking about large amount of documents and signatures within a single transaction, the complexity of the document (page number, character count, etc) and the number of signature fields could also affect the response time.

 

Duo

Duo Liang OneSpan Evangelism and Partner Integrations Developer


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