Signature Field Properties

I am looking at getting the signature field properties, specifically who signed it and anything else is a bonus. I am using C# and the SDK and the Javascript Object.
Thanks

Moved to Acrobat SDK

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Properties of the Signature Field

How can I extract certain properties of the Signature Field?
Basically I want to extract the name of the Signator in order to assign rights. I also have a "Approved Name" Field that the user fills out and I feel I can eliminate that field and ensure accuracy.
Any Advice?
John Sarradet
New Orleans

Take a look at the SignatureInfo object in the Acrobat JavaScript reference. You can get a SignatureInfo object in a Designer form using script like the following.
var acroSOM = SigField.somExpression.substr(15, SigField.somExpression.length - 1);
var acroField = event.target.getField(acroSOM);
var sigInfo = acroField.signatureinfo();
Chris
Adobe Enterprise Developer Support

How do I delete a digital signature field?

I have Adobe Acrobat Pro 9 on Snow Leopard. I created a digital signature for a PDF file but it didn't look good, so I decided to delete it. I figured out how to delete the signature, but the signature field with the little red arrow did not delete with my signature. I want my PDF form to revert to the way it was before I created the signature. I cannot simply close the PDF without saving because I'd lose all the information I've already entered. Stupid me forgot to save before attempting the digital signature.
HOW CAN I DELETE the digital signature field? Help!

Hi SM,
The place to look for permission settings is on the Security tab of the Document Properties dialog. You can get there by selecting the File > Properties menu item and then select the Security tab.
One thing to note is if the file is Reader Enabled you will need to use the File > Save a Copy menu item to create a non-Reader enabled version of the file. You cannot edit a Reader Enabled file. As an aside, the Save a Copy menu item won't be there if the file is not Reader Enabled.
If the file was created using Designer (which is only on Windows and I know you are using a Mac) then it has to be edited in Designer.
If the file was certified, then you need to remove (clear) the certifying signature before you can edit the file, and to do that you must have access to the private key that was used as part of that signature operation.
Finally, if the file is encrypted (e.g. Password Security or Certificate Security), you can edit the file, but you have to get Acrobat to realize you are the document owner which means you need the Permissions password or or logged in using a document owners digital ID (the former is only for Password Security and the latter is only for Certificate Security).
Steve

How do I create a certificate to remove signature field issues?

I would like to start using digital signatures for some internal documents. We are a small site with about 20 PC users (3 of them Apple).
We can create PDFs with signature fields but every time we sign the document, when somebody needs to sign again (for approval of the first sign), then a constant message "file has been modified since it was signed" and also "at least one signature has problems......"
The way I created the forms is by adding form fields and then "Extend features in Adobe Reader" as only the 3 Apple devices have Professional version of Acrobat.
What is the correct way to do this? I think I need to create a Trusted certificate, of course for the size of our site I don't want to have external solutions, especially because it is for internal purposes only.
Any help would be appreciated.
Thanks.

How the signing certificates that you use for all signatures were procured? Were they created by a reputable Certificate Authority (CA) or are they self-signed certificates that you can create in Acrobat and other apps?
If they are self-signed certificates then you need to explicitly trust each of them on each Acrobat/Reader installation. You can use (Acrobat XI/Reader XI) to do that:
1. Right-click on the signature, select "Show Signature Properties...->Show Signer's certificate".
2. In the left pane shows the signer's certificate. Select it.
3. Select "Trust" tab on top and in this tab "Add to Trusted Certificates". Again for self-signed certificates you need to do that on each Acrobat/Reader installation.
If you got your signing certificates from a Certificate Authority #2 above shows the certificate chain. Select that top-most certificate in the chain and add trust for it as in #3. Chances are that all your certificates were issued by the same CA. In this case you need to add trust to only this one certificate on each Acrobat/Reader installation.
You can use Export/Import Security Settings feature in Acrobat to make this process easier. This feature was discussed at length in several discussions on this forum <Re: Small Business Digital Signature Set-up>. Search for "Export/Import Security Settings" for more info.

How to make signature field work for reader users? Security settings change when doc is extended???

I've been struggling to correct a problem all week and am at my wits end. Customer service was no help as the person I spoke with could barely speak english let alone understand the problem as I explained it to him. Hoping someone here can provide some insight, here's the issue:
I'm using a Windows 7 Professional OS. I created a Microsoft Word doc and used Adobe Acrobat XI Standard to create a form from it. It automatically detected the fields, which includes a signature field. I went through fixed it all up how it needed to be and did "save as other - reader extended pdf - enable forms fill in & save in reader".
The document is a report that will be sent to a small number of people that have to fill it out, digitally sign and return and I'm assuming that most if not all of them will open the document using the free Adobe Reader. So I thought extending it is what I needed to do to make sure they could fill it out, save it to their computer if need be, and also sign digitally. The signature field was automatically added in by acrobat for me and I did not change the properties of it at all except to add a border.
When I open the form in Reader (also XI) I can fill out all the fields, save it... but not sign it. The security settings say signing is not allowed even though I went back to the original pdf form and the security settings on it say allowed for everything. I don't know how to fix this... please help!!!
I've attached some screen shots but can include more if needed...

I don't have the Enable More Tools option under Reader Extended PDF. I just tried to download the XI Pro trial version and it won't complete installation because of the standard version I already have. Any advice or workarounds you know of? Going to the boss for $$ to upgrade to Pro is what I'll consider my last resort if the issue is truly that I have to use Pro to enable more tools for reader.... I appreciate your reply though. I sat here all day yesterday fingers crossed that SOMEONE would give it a go!

Digitally Sign All Signature Fields in the Active Document

I have a script which will sign a single digital signature field by the field name.
I need to revise the script so it will sign multiple/all signature fields in the active document without having to put the field name in the script, as the field names will vary with each document.
Can anyone please advise how to modify the script to sign all fields in the active document regardless of the field name?
function myOtherTrustedFunction()
app.beginPriv();
// Get and login to security handler
var oSigHdlr = security.getHandler( "Adobe.PPKLite" );
oSigHdlr.login( "123","/c/Documents and Settings/name/Application Data/Adobe/Acrobat/10.0/Security/FirstNameLastName.pfx");
// Setup Signing Properties
var chk = this.getField("Checked");
if (chk != null) {
// Apply Signature and save back to original file
var bRtn = chk.signatureSign({oSig:oSigHdlr, bUI:false, oInfo:{password:"123"}});
app.endPriv();
Any assistance will be most appreciated.

Thank you for your help, the script will now count only the signature fields which have not been signed.
I have added the second part of the script to then sign all of the blank signature fields.
The script is only signing one of the digital signature fields instead of all of the blank signature fields.
Can you please advise how I can modify the script to sign all of the blank signature fields?
var count = 0;
for (var i = 0; i < numFields; i++) {
    // Get the current field object
    f = getField(getNthFieldName(i));
    // If it's a signature field and not already signed, increment counter
    if (f.type === "signature" && !f.value) {
        count++;
var myEngine = security.getHandler( "Adobe.PPKLite" );
myEngine.login( "123", c/Documents and Settings/name/Application Data/Adobe/Acrobat/10.0/Security/FirstNameLastName.pfx" );
// Sign the field
f.signatureSign( myEngine,{password: "123"});

Do you have to distribute a form in order for a signature field to work?

I looked through all the settings on Adobe Acrobat 9 Pro and I haven't been able to figure out how to save a pdf so that when I open it in Acrobat Reader, I can sign the signature field. When it's in Pro, the field works just fine and the document properties say that signing is allowed. However, if it's opened in Reader, it will not allow the signature box to be signed, as the options are all greyed out. When I look into the document properties while the pdf is open in Reader, it says that signing is "not allowed".
So far the only way I've been able to get the signature field to work is by distrubuting the form and opening up the distrubuted form (which makes sense). What I'm wondering is if there is a way to allow for signing a pdf if it hasn't been distrubuted.
Any help anyone can give wil be appreciated.

The document has to be enabled with Acrobat Pro, as opposed to Standard which cannot enable a document for signatures. This happens automatically when a form is distributed, but you can do it by selecting: Advanced > Extend Features in Adobe Reader
The security restriction summary indicates that signing is allowed because it is, in Acrobat. It doesn't mean it's allowed in Reader.

Signature Field disappears??? %#%^#

I am sure I am missing something simple, I just can't seem to get past it.... I have a form that has a single sub form which works fine, it is visible and invisible when it is supposed to be. The issue however is with the signature field.
I can see the signature field in the design view but not in the pdf view. The signature field needs to be visible all the time and is set to be so, however it disappears in the pdf view. It needs to be visible in case the user desires to sign the form manually and fax it rather than signing it electronically.
Like I said, all the properties on the field are correct, and I can see it in the design view but it disappears in the pdf view and on the pdf form. This form is saved as a dynamic form.
Anyone have any ideas??
Thanks-->> G

while you have the signature field selected go under object-field- presence and make it visible.. unless you have already done that than i have no idea

Seeding a signature field in Livecycle design

Creating a signature field is straight forward. However I want to seed the 1st sig field to make it an 'author' signature and allow type 2 changes (The permitted changes are filling in forms, instantiating page templates, and signing. Other changes invalidate the signature.).
I know how to do this with javascript in Acrobat forms. But in Livecycle I cannot find how to set the seed on the field.
Any advice appreciated please.

This cannot be done using LiveCycle Designer but here are other options
Option # 1
A simple orchestration can be created using addSignatureField/ModifySignatureField
In workbench Select the activity(addSignatureField/ModifySignatureField) and Go to Process Properties
Under Advanced Panel --> Signature Type(In property editor)
Select Certification Signature radio button and "Annotations,form fill-in and digital Signatures" drop down
Option # 2
using Client SDK Java API, Here is code snippet
    Document inDoc = new Document(new File(inputFile), false);
    PDFSignatureFieldProperties pdfSigFldProps = new PDFSignatureFieldProperties();
    PDFSeedValueOptionSpec pdfSeedValueOptionSpec = new PDFSeedValueOptionSpec();
    pdfSeedValueOptionSpec.setMdpValue(MDPPermissions.AnnotationFormChanges);
    pdfSigFldProps.setSeedValue(pdfSeedValueOptionSpec);
    Document outDoc = signatureServiceClient.modifySignatureField(inDoc, sigFieldName, pdfSigFldProps);
    outDoc.copyToFile(new File(outputFile));
Javadocs are available at http://livedocs.adobe.com/livecycle/8.2/programLC/programmer/javadoc/
--Santosh

Signature field and submit button not working

I recently upgraded to LiveCycle Designer ES2 and am having problems with some functionality. I created a form with 3 signature fields and a submit button for the final signator to email the form back. None of the signature fields work; neither does the submit button. I did everything the same as I had in the previous version of the software. However, it appears that there have been some changes that I'm unaware of. I read about locking objects, but got a little confused. Can someone tell me (in very lay terms) what I need to do to get these functions to work?

George,
Then, I guess I don’t know what I’m looking at. When I look at the document properties, it shows that rights have been granted. See the screen shot below.
Would you tell me how I should enable Reader?
Gloria
Gloria Díaz
Gloria Díaz

Can I modify a pdf file containing a signature field prior to download?

I have a pdf file I use as a template and in my .net application I fill in a few fields using pdfstamper, iTextsharp, etc. I'm new to this.
That all works.
I also have a signature field in my document.
After I modify the fields, with the person's name, etc., I download it to the client machine, open it in Adobe Reader X, and ask the user to sign the document.
I get an error saying "This document enabled extended features in Adobe Reader. The doc hsa been changed since it was created and the extended features are no longer available......"
Is there a way for me to do what I'm trying to do? I hope this is somewhat clear. It appears that modifying the fields with itextsharp is what's causing the error to occur.

Thank you for the replies.
More specifically, here's what I'm doing. There's a desk where people come to pick up a gift card. When someone picks one up, a clerk runs this .net program, selects the persons name form a dropdown list, I modify a pdf file (using iTextSharp), by adding the person's name, the serial number of the giftcard, etc, download this file to the client desktop, where the person signs using an ePad. Then the clerk saves that pdf file.
The clerk will not be able to go into the menus and remove and/or save Reader Usage Rights. Is there a way through code that I can add Reader Usage Rights after I modify the file. It sounds from your replies that that's what I need to do.
Also, I don't really care about the official "signature", security, certificates, etc. I just want someone to be able to scribble onto the document using a signature pad.
I do have Acrobat Pro X and LiveCycle. (I assume that means I have LCR Extensions.)
Dave

Populating the Signature field of OIM UPA table

The OIM UPA table has a SIGNATURE field which customers can use for storing digital signature of the snapshot (for non-repudiation purposes).
By default - the value of this field is "NULL" in the database.
Did not find any documentation on how this field is populated.
Has any one made use of this non-repudiation feature.
Thanks,
Chetan

If you want this functionality it is actually not that hard to create a scheduled task that populates the signature field using a third party non repudiation provider.
Doing local non repudiation is per definition non useful so you do need a trusted third party (i.e. Guardtime (http://www.guardtime.com/)) that provides the service.
Best regards
/Martin

How to get all signature fields in a .pdf from C#

Does anyone have some sample code that shows how to "iterate" all signatures in a .pdf from C#? Using the SDK and the Javascipt object model I know how to sign a document but I can't figure out how to "get all the signatures". Basically I want to open a .pdf file and then (from C#) find out what persons currently have signed the document. I guess I need to iterate all signature fields and then get the SignatureInfo object, or?
Anyone?
Cheers,
Calle

I am afraid this don't help me. How do I get the "data" back to C#? Looping all fields in in JavaScript is probably "easy" but I simply can't figure out how to get access to the data from C#. Any one have a suggestion on the best approach?
Thx,
CJ

Adding a signature field takes a lot of time

Case: I have a Microsoft excel sheet that I save as PDF directly from excel. I use Adobe Acrobat X PRO to create 3 signature fields on this PDF to allow document signing in Adobe Reader.
Problem: Adding a signature field in form editing mode are extremly slow. After placing the signature field, Adobe Acrobat stops responding for about 1-3 minutes. I need to do this for a lot of documents, so it's time-consuming to say the least..
Is it possible to speed up this process?

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How Can I stop signature fields disappearing on my IPAD Adobe Reader 11

Hi, I am using trial version of Adobe Acrobat XI pro. I have converted a Word document to PDF. I have added text fields, Java scripts to automatically add Todays date as default, Form Reset buttons and Signature fields. File is saved as standard save. All of the above is done in Windows 7 environment. On same computer, In Adobe Reader signature fields are visible although I do not have the means to test it. When the same File is emailed and opened on an IPAD using Adobe Reader 11.2, the signature fields are missing. I intend to have my users access the file (and 30 others like this) on an IPAD. Can someone advise how to resolve the missing signature field issue. It appears that Adobe do not help with such issues as it is not considered an installation issue.

Digital signatures are not supported on mobile versions of Adobe Reader. Other PDF viewers like Readdle's PDF Expert treat them like e-signature fields, allowing the user to draw/apply their drawn signature, but this is not the same as a digital signature. Adobe Reader for iOS allows you to add an e-signature, but it doesn't use digital signature fields for this feature. Instead, you tap the screen, choose the annotations icon, and then the signature icon.

Signature Field Properties

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