Digital Signatures: Multiple Tasks and Signers

Hello, All-
Context: We have a repair and overhaul operation that has several technicians performing maintenance. Basic workflow: product comes in, gets the paperwork for the specific maintenance, and then travels through the facility to be broken down, serviced, rebuilt, tested, and returned to service. We would like the "paperwork" to be all electronic (which we can do with Acrobat by using PDF documents), but there are several tasks that require a technician's signature. Not a digital signature for the WHOLE document, just a task in the document.
Objective: Multiple technicians signing off on mutilple tasks, all in one document.
Questions: Can we modify the document (i.e., add/insert pages) in Acrobat after a digital signature is applied using the Reader? Do those signing off on the tasks only need the Reader to create and apply the signature files? Can multiple signature files be stored in a centralized location, since technicians use work station machines (rather than a computer issued specifically to them)?
Doing some investigation for the best solution. Sorry for the series of long questions.

> "No. However, this can't be done in Reader under any circumstances... Reader is just that, a reader of PDF files. It can't edit them in any meaningful way, like add new pages (unless a special template was set up for this purpose)."
- I should have clarified: we would like to modify the document using the full Acrobat Suite after digital signature. Signing once locks the entire document from further edits.
> "Not 100% sure about that, but I think the answer is no. Signatures have to located on the local machine."
- That's a problem: then every technician needs a digital signature on every machine. Not suitable at an enterprise/department level.
I just found an answer to the basic concept, as it was answered just yesterday (http://forums.adobe.com/thread/1338837): I can leverge the Stamp feature and create a custom stamp to act as a signature. I can still modify the document after applying the stamp.
Now the test: can others remove my stamp?
Edit: Thanks for the help, BTW. I see you edited your answer to question #1. Again, maybe the stamp feature is sufficient?

Similar Messages

Xfa Form, Digital Signatures, file attachments and Reader 9

Hi,
In reader 8 and previous, when i wanted to have a form that could be signed, passed to the next persons, added attachement signed, repeat, while maintaining the signatures valid, i could.
Since we updated to reader 9.12 all previously signed documents appear with invalid signatures and if i try to attach a file, the add button just isn't there.
If i follow he following steps:
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Server side:
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One last try.
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Hi all,
I am trying to figure out how to synchronize multiple tasks across multiple X-series USB boards (6353, to be precise).
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Diane
Solved!
Go to Solution.

Update: I decided to try using a counter as the source clock. One cannot use counter 0 to accomplish this, but it does appear to work with counter 1.
I'll take what I can get. Fortunately I have two spare counters. (Yes, I'm running counter tasks too -- 6 of them -- but they don't have to be synchronized.)
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My head aches.

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I believe PIX supports simple Dig Sig.

Add Digital Signature Using C# and Acrobat SDK

Hi everybody!
Please, how can I digitally sign PDF documents using Acrobat Professional 8 API and C# language?
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Hi Felipe,
when i am signing the document.
I believe i am missing something in my code. After executing the code to sign, when i open it i get "The following signature fields are not signed".
Please let me know where i m doing wrong?
Here is my VB.NET Code
Dim gapp As Acrobat.CAcroApp
Dim gpddoc As Acrobat.CAcroPDDoc
Dim jso As Object
gapp = CreateObject("acroexch.app")
gpddoc = CreateObject("acroexch.pddoc")
If gpddoc.Open("C:\Test1.pdf") Then
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jso.SetUserPassword("'testpassword12'")
'jso.ShowMyMessage("SetUserDigitalIDPath")
jso.SetUserDigitalIDPath("'c:\\DrTest.pfx'")
jso.app.execMenuItem("ADBESDK:AddSignature")
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gapp.Show()
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// password to use the digital signature
var sigUserPwd = "UNKNOWN";
// to test the sample without user input, specify:
// var sigUserPwd = "testpassword";
// path to the digital signature file
var sigDigitalIDPath = "UNKNOWN";
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//var sigDigitalIDPath = "/C/DrTest.pfx";
// other variables the user can modify
var sigHandlerName = "Adobe.PPKLite";
var sigFieldname = "sdkSignatureTest";
var sigReason = "I want to test my digital signature program.";
var sigLocation = "San Jose, CA";
var sigContactInfo = "[email protected]";
/* Add a menu item for AddSignature */
app.addMenuItem( { cName: "ADBESDK:AddSignature", cUser: "Add My Signature", cParent: "Advanced",
cEnable: "event.rc = (event.target != null);",
cExec: "AddSignature(event.target)" });
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AddSignature=app.trustedFunction(function (doc)
app.beginPriv(); // explicitly raise privilege
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if(sigDigitalIDPath == "UNKNOWN"){
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cTitle: "Digital Signature",
cDefault: "/C/DrTest.pfx",
if ( cResponse == null) {
app.alert("No input.");
return;
else
SetUserDigitalIDPath(cResponse);
// if sigUserPwd is not spcified, ask for user input
if(sigUserPwd == "UNKNOWN"){
var cResponse = app.response({
cQuestion: "Input your password:",
cTitle: "Digital Signature",
cDefault: "testpassword",
if ( cResponse == null) {
app.alert("No input.");
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else
SetUserPassword(cResponse);
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var signatureField = AddSignatureField(doc);
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function AddSignatureField(doc)
var inch=72;
var aRect = doc.getPageBox( {nPage: 0} );
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aRect[2] = aRect[0]+2*inch; // Make it 2 inch wide
aRect[1] -= 0.5*inch;
aRect[3] = aRect[1] - 0.5*inch; // and 0.5 inch high
var sigField = null;
try {
sigField = doc.addField(sigFieldname, "signature", 0, aRect );
} catch (e) {
console.println("An error occurred: " + e);
return sigField;
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Sign = app.trustedFunction (
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app.beginPriv();
var myEngine = security.getHandler(DigSigHandlerName);
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} catch (e) {
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function SetUserPassword(pwd)
sigUserPwd = pwd;
// set path to the digital signature file
function SetUserDigitalIDPath(idPath)
sigDigitalIDPath = idPath;
Sumit

Sign pdf doucment with digital signature multiple times using java api

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Here is the video training for LC - http://www.adobe.com/devnet/livecycle/videotraining.html
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~ Varun Nohria

Digital Signature Error: Parameter and size limit

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Size limit error
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S.

Okay, I think you are on to something.
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Steve

Working multiple tasks and executable vi

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Attachments:
Program Backup.zip ‏604 KB

GerdW wrote:
Hi Newbieeng,
2) When creating an installer in the AppBuilder you include all needed runtime engines for your executable. No need to copy them on their own...
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Egemen
Attachments:
paths.png ‏21 KB

Multiple Digital Signatures (certificates) results in VERY slow PDF

I created a form in Lifecycle that typically has 8 signatures. As more signatures are added the form slows down significantly. Our director, who ultimately signs off on the document, has informed us that it took him 35+ minutes to approve 3 documents. The forms are on a network drive. I had read some old threads that mentioned this issue was being investigated and the newer versions of Acrobat should help speed up this process. We are currently running Acrobat X 10.1.4. Any suggestions as to what might be slowing things down? I know the digital signatures require validating and expect it to slow things down a bit but 11+ minutes is probably more than it should be. Thanks

Hi,
Just out of curiousity, if the form has been Reader Enabled, and, if the director could download the free Adobe Reader v11 from the Adobe web site, and he signs the file using version 11, is the signing process faster? It should be much faster in version 11 because we fixed the recursive validation issue that made dealing with multiple signatures so slow.
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Thanks,
Steve

Digital Signature and workflow functionality in Enh Pack

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I would be wonder if anyone has used those function in standard system without any custom development.
How can we use/ activate those (digital signature for QN and workflow) functionality? Reply appreciated.

SAP IMG > Quality Management> Quality Notifications> Notification processing> Specify Digital Signature
Give details like
Level -Header /Task Notification Type
Business
   Transaction
Signature Type
Strategy
Enter the Business Transaction: like PMM2 for Put notification in process,PMM4 for Complete notification,     QN40 for Release Task etc
Depending on your configuration systems asks for digital signature when you set header level status or Task level status
Means if u set Digital signature for PMM2 for Put notification in process system prompts for Digital siganture.
Regards
Nitin

Multiple digital signatures in one file

I have a client who wants me to combine 4 different forms into one--then--require a digital signature by the same person after each independent form. So that would be 4 digital signatures total. And all identical. I'm using a different name per each field so there's no conflict.
It appears to work fine until I have it submit dynamically with a PHP script via email inbox.
When I open the PDF (having crunched the info back in from an FDF) the data is there EXCEPT the digital signatures.
Can someone point me to a tutorial?
Best regards,
Mare

Hi Mare,
You cannot merge files and expect that the digital signatures will be preserved. When you sign a file you are signing all of the bytes in that file, and only that file. Once you combine files you are creating a new unsigned file. If someone were to sign the new file they are signing all of the bytes in the new file, not just some of the bytes. There is no "page level" signing in PDF files, only whole file signing.
You can however put the signed files into a Portfolio file. A Portfolio keeps the files separate. Think of a Portfolio like a file cabinet in the physical world. Just because you put different files into the file cabinet drawer, they don't merge.
Steve

Multiple Digital Signatures?

Here at my work, we need to use digital signatures in order to protect our sensitive documents. However, sometimes these documents need to go up the chain of command before they are completely "done".
Is there any possible way to have more than one digital signature on a document? When I put my digital signature on something and sends it to my boss and he signs it...it erases the original signature (mine) and his is the only one there.
We need to be able to have both of our digital signatures on the document. Is this possible with this, or any other Adobe software?
FYI: We run on Windows XP, and only a few select people have Adobe Acrobat 7.
Any suggestions, EVEN if it means buying new Adobe software would be appreciated.

It's hard for me to send any files, because most of our documents are snesitive materials, and proprietary information.
We also mainly use things on Microsoft Office 2003 (this document in particular is made via Excel 03), but we are willing to transfer the documents to Adobe in order to get the signatures.
The way we sign things is digitally. However it seems, in no matter WHAT format we use, we cannot make ANY changes to the document without taking the old signature off.
These "documents" usually pertain to job orders, or request forms for new jobs. Several people have to sign off on these forms, and almost all of them need to edit/change/add their own stuff to the forms, as the forms go up the chain of command.
But when the very last person sees it, it needs to be shown as signed by everyone who has seen it. This does not seem possible IF the document is edited in any way.

Digital signatures and wet ink signatures

HI all,
I am in the process of converting our paper checklists into fillable pdf forms. Everything is working well, but Im trying to get my head around digital signatures.
Ideally I just want to click the signature part, choose a user from a list, enter the password and the 'wet ink' signature that is scanned in gets added to the form.
So on my laptop I setup a new appearance for my signature, scanned my signature and added it to my digital signature. Perfect.
Problem is, I want to be able to use this on other computers. I copied the digital signature .pfx file and imported it on that new computer, which worked, but it drops the 'wet ink' signature and appearance.
It also appears that anyone can create a digital ID on my laptop and choose my wet ink signature appearance, and sign the document which makes it appear as if I have signed it. I was hoping the wet ink signature was locked with the digital signature but it appears this isnt the case.
Im trying to find the best way to store our signatures (we are all on a network), so that any user can use any computer and ideally lock the wet ink signature to the digital signature.
Many thanks
Chris

It doesn't work for everyone, but if you are considering moving to the world of digital signatures, it's best to forget the signature appearance ("wet"). This is just a distraction to the actual signature, and it encourages a deeply flawed workflow: one where people look at the picture on the page rather than learning about digital signatures and how to verify them. Since digital signatures are (if done properly) unfakeable and (in some places) legally recognised, it is best to completely change workflow, rather than trying to give the illusion it is just an electronic version of a paper workflow.

Excel 2013 crash - related to digital signature?

This is a cross-posting of a thread originally started in Microsoft Answers (Office- Excel) forum, advised to post in this forum by MS support engineer Mohan Suryanarayan (link to other forum: here).
I have a VB macro in file A (which otherwise contains only several Excel Tables with named ranges). My digital signature (for signing code) is attached to file A.
As the macro executes, the Open file dialog is called up so that the User can select a secondary file to open (file B or C).
Files B and C contain several sheets with formulas and Excel Tables, and also their own extensive VB macros. My digital signature is also attached to files B & C.
The remainder of the macro in file A simply executes an update of the Excel Tables in the secondary file, before saving & closing it.
I have been finding that during execution of the file A macro, Excel crashes and closes all open Excel files.
If I remove the digital signature from the secondary files then the macro in file A executes with no problem.
The macro was written in Excel 2007 and on a different laptop, with different digital signature, and used to have no problem at all. When a new laptop was purchased a new digital signature was obtained and placed into all of the files.
Execution of file A is a critical process - I need help with stopping the crash, while maintaining a digital signature in the secondary files (so that their own macros can execute).
Event Viewer error shows the following:
Faulting application name: EXCEL.EXE, version: 15.0.4667.1000, time stamp: 0x543d366c
Faulting module name: mso.dll, version: 0.0.0.0, time stamp: 0x5447696f
Exception code: 0xc0000602
Fault offset: 0x011aafdd
Faulting process id: 0x2d58
Faulting application start time: 0x01d01e17eafcd0bb
Faulting application path: C:\Program Files\Microsoft Office 15\root\office15\EXCEL.EXE
Faulting module path: C:\Program Files (x86)\Common Files\Microsoft Shared\Office15\mso.dll
JL Latham replied:
Tom, all I can give you is relatively non-information. I haven't experienced that type of behavior even in Excel 2013 with digitally signed macros in multiple workbooks. But my digital signature is a commercial one from DigiCert, not
self-cert. I'm not even sure what piece of Excel or Office processes the digital signature (that is, whether it is mso.dll or not). But your whole process has more moving parts than most of mine involving multiple workbooks do - I quite often turn
off .EnableEvents when doing things like that just so event driven macros in the other workbook(s) do not execute.
Do the macros in the 'B files' have to execute during all of this processing in file A? If not, have you tried turning interrupts off:
Application.EnableEvents = False
before starting to work with the B-files? Maybe something in them, such as a Worksheet_Change() or other event triggered process is messing things up?
If you do use Application.EnableEvents=False, remember that you MUST re-enable that later in the code with Application.EnableEvents=True to get responses to things like button clicks, changes in a worksheet or other event driven processes
to run 'normally' again.
Have you looked at this discussion:
http://answers.microsoft.com/en-us/office/forum/office_2013_release-excel/excel-2013-crashing-immediately-when-attempting-to/ea2ab100-5525-4a0d-a3cf-6977319f954f
Sounds very similar to yours - original signature created in 2007, and crashing in 2013. Some suggestions were made, but whether they fixed the issue or not is unknown: OP never came back and said "fixed it" or "didn't fix it".
I replied:
In answer, the secondary B files don't execute any part of their macros during the A file process, and I hadn't included an EnableEvents = False within the file A code. However, I have just tried it to check if it made any difference and unfortunately it didn't.
I had read the thread you gave a link to before posting, and also the sub threads given within that one, but didn't see anything I thought of immediate parallel other than an Excel 2013 crash.
The way I read the linked thread was that a User added a signature in Excel 2007 and when they tried to open the file Excel (2007?) crashes, although other people using Excel 2013 can open it (not clear whether it means others can open the one with
the 2007 signature or without it).
Anyway, the differences in my situation are that:
(1) my B-files were originally created in Excel 2007 on a different laptop to current and had their own signature attached. I maintain a 'stock' of B-file versions, some of which have the old signature and some the new. If I run the A-file macro
on one of the B-files with the old signature then it executes ok;
(2) I am able to open the B-files ok, no matter whether the signature in them derives from the old laptop with Excel 2007 or the new laptop with Excel 2013;
(3) the macros within the B-files execute ok (this includes any versions of the B-files which still have an old signature attached, by removing the old signature and replacing with the new and executing on the new laptop);
(4) the offending operation which triggers the crash (when the B-files have the new signature attached) is a Resize of the Excel Tables within the B-file. I understand that I may eventually have to find a workaround for this operation but initially
I want to sort out the signature issue (I'm reasonably sure the signature issue is not a red herring where the Resize is the 'real' problem).
Regards, Tom

Hi,
According to your description, this issue occurred with some particular files that stored in SharePoint site. Did the user download the file to local disk to print?
Based on the event log >>Faulting module name: EXCEL.EXE<<, it does not show the root Faulting module. Thus, please try to follow this KB to do general troubleshooting:
https://support.microsoft.com/en-us/kb/2758592
Then, if you have used "printer status application", please go to Device settings -> Installable options -> Printer Status notification and select disable.
If this issue still exists, we may need to collect the App crash dump file:
https://technet.microsoft.com/en-us/sysinternals/dd996900.aspx
You can try to analyze dump by yourself if you would like to：
How to analyze app crash dump file:
http://blogs.technet.com/b/askperf/archive/2007/05/29/basic-debugging-of-an-application-crash.aspx
Regards,
George Zhao
TechNet Community Support
It's recommended to download and install
Configuration Analyzer Tool (OffCAT), which is developed by Microsoft Support teams. Once the tool is installed, you can run it at any time to scan for hundreds of known issues in Office
programs.
Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact [email protected]

Digital Signature queries

Hi Gurus,
I have two questions to be answered and many points to be awarded !!
Question1:
We have defined one document type SOF (Software), this document type is used on 2 different products (Product1, Product2) in a Plant.
We have defined the Product Types under classification for this document type. The approval has to be through Digital Signature. 4 people (A, B, C, D) are involved in approval process. A, B (serial) for approval of Product1, C, D (serial) for approval of Product2...... We defined a Digital Signature Group: SOF_APPROVAL and assigned 4 Individual Signatures i.e. assigned person A to Ind_Sig1, person B to Ind_Sig2, person C to Ind_Sig3, person D to Ind_Sig4
and then created 2 strategies, Strategy1(Ind_Sig1, Ind_Sig2) & Strategy2(Ind_Sig3, Ind_Sig4)
Now thing is I want to use Stategy1 when I select Product1 in classification when creating a SOF document, and Strategy 2 when I select Product2 for approval.
What is the best method by which it can be achieved. Under SPRO while defining Doc type, I can enter only one Strategy there? What is the way around?
Question2:
Is there a one to one relation between the Individual signature and the Digital Signature Group.
For example lets say there is a Drawing Checker Dig Sig Group (Draw_Check_Group), which has 2 individual signatures assigned to it, one for electrical (ELEC_Draw_Checker) and other for mechanical(MECH_Draw_Checker), and respective user id of the checker is assign to the signatures. Am I correct to say this?
Thanks,
Paddy

Hi paddy,
w.r.t first question as far i know we cannot assing multiple sign stats. but there is a solution, we can use form routine field of the document status screen for the document type SOF.i.e. write a program for dynamically assining Signstat to the document based on the object link value (i.e. for product1 assing value signstat1 etc at runtime.) and call this program if the doc type is of SOF.
while changing the status of a document this program is called and the program will check the product type and appropriate sign stat is assigned to the signstat at runtime.
thanks,
surya

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