Removing of digital signature

how to remove a digital signature from a document

hi
tks for your reply would appreciate if you could inform me the email address of the Acrobat forum if you have
With Best Regards
PARAG

Similar Messages

How do I remove the digital signature option on Adobe Acrobat 7.x? I don't want it, but it pops up every time I need to sign a form, and I cannot find a way to remove

I created a digital signature to sign forms using Adobe Acrobat 7.x. I really don't want or need this feature, but do not know how to remove it or keep it from popping up every time I need to sign a form. Can anyone help? I'm not that technically savvy, so please explain in layman's terms. Thanks!

It's not clear to me what you're trying to accomplish. If you get rid of your digital ID you will still be prompted to create/add one when you need to sign a form, which you say you still need to do? Do you really just want to e-sign (hand-drawn signature, or stamp) instead of digitally sign? Do the forms you're using have digital signature fields?

Is there a way to run a script to remove a digital signature and unlock the fields it locked?

I'm creating a sectioned checklist (In LiveCycle Designer ES2 on a Windows 7 OS) covering a process with four sections to be completed/signed by different individuals. The final section is for a separate party that, if he/she approves the completed work, he/she signs the form and locks it down completely, however, if one particular item is wrong, he/she must return the form to the signer of Section 3.
I've worked with not locking the fields in Section 3 when Signer #3 signs the form and using visible and invisible signature forms (If Signer #4 selects a particular option, I reset the related fields in Section 3, hide the original signature, and show a new, empty signature field), however, if the form has to be returned numerous times, this is not a viable option.
I could include instructions for my end users to remove their own signatures, but some may not be very computer-literate, and this could be difficult. Is there a script I could either connect to a button or some way to reset just one section of the form? Or does anyone have a better idea?
Many thanks in advance!
Caroline

Bob,
you could put a virtualizer such as VirtualBox or Parallels Desktop on the external drive, and install Windows and Windows apps in the virtualizer.

How do I remove a digital signature from Adobe Acrobat Pro. I have set it up wrongly.

I created a digital signature but I wanted to change the signature and it also was not password protected. So I deleted the signature but cannot delete the certificate to set it up again.
Mac OS X (Operating System)
So I am unable to delete the digital signature in Acrobat Xi pro.
I did the following: Adobe | Preferences | Signatures | Creation and Appearance Preferences and deleted the signature. But Adobe | Preferences | Signatures | Digittal ID and Trusted Certificate Settings, does not want to delete.
Tank you.

It's not clear to me what you're trying to accomplish. If you get rid of your digital ID you will still be prompted to create/add one when you need to sign a form, which you say you still need to do? Do you really just want to e-sign (hand-drawn signature, or stamp) instead of digitally sign? Do the forms you're using have digital signature fields?

How to Remove Digital Signature which was activated

Hi
   I activated digital Signature for Inpection lot for a material.
   Now when i am trying to remove the Digital Signature which was activated earlier i am unable to do this, could anybody help you in this regard.
   I removed the entries from Central Functions-> Authorization Groups
And even i modified the material for Inspection method .
But even after that also when i am trying to change the Inspection Usage it is asking for the Digital Signature
Thanks
Uma

Hi Boga,
This could help
http://help.sap.com/saphelp_47x200/helpdata/en/39/15683823d45123e10000009b38f889/frameset.htm
http://help.sap.com/saphelp_nw70/helpdata/en/40/8a0b37e44d7c2fe10000009b38f889/frameset.htm
Cheers
Soma

Remove digital signature certificate in java

Hi,
we are trying to remove the digital signature certificate from the pdf documents and merge it using pdfbox to create a single pdf document. Could someone please give suggestion on how to remove the signature certificate programmatically in java.
Thanks in advance,
Rashmi

Try the PDFBox mailing-list.

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 signatures and combining PDFs in Acrobat X

I hope that one of you Acrobat gurus can help me out with one or more of these questions:
Is it possible to maintain digital signatures when inserting signed PDFs into another PDF?
Is it possible to remove a digital signature after a signature has been deleted from the page?
Is it possible to change the format of the date and time on a digital signature?

In the simplest sense a digital signature is a special checksum of all the bytes in the bytes in the PDF combined with all the bytes in the digital signature. If the document is changed in any way the checksum changes, so the signature becomes invalid. A valid signature ensures that the document hasn't changed since the signature was applied. That stuff that's shown on the signature field is irrelevant. It's just a pretty picture. The real stuff is going on inside the PDF where you can't see it.
Obviously it gets a lot more complext then this. The signature can be selectively applied so that the certain types of changes are allowed. A signature does not add real protection to a PDF, but Acrobat plays along with this scheme by trying to not allow changes that would invalidate the signature, and logging all modifications to the PDF.
1) There are ways to maintain the visual appearance of the signature on the page. If the permissions have been set to allow it the PDF can be flattened, which also partially removes much of the stuff that's going on internally. But this isn't always possible. I had to solve this problem once for a client, so I wrote a plug-in that strips the signature permissions from the PDF (I'll post this to www.pdfscripting.com sometime soon), after which the the PDF can be flattened, keeping the appearance. But of course, after this point the document has to be considered invalid. For example, if the document was a contract, the flattened version would be good for use in an analysis of say all contracts for a particular year, or for copying legal language to another contract, but it couldn't be used as the basis of a legal dispute.
2) I don't understand this one. Do you mean you're deleting the signature field and some of the internal digital signature stuff is still hanging around causing problems? If you own the signature (or the permissions allow), then a standard form reset will "Un-Sign" the PDF. Inserting PDF pages into another PDF will strip out all this info as well.
3) The stamp appearance is set at the time the stamp is applied, it cannot be changed after this point. It's a lot like a PDF stamp.
Thom Parker
The source for PDF Scripting Info
pdfscripting.com
The Acrobat JavaScript Reference, Use it Early and Often
http://www.adobe.com/devnet/acrobat/javascript.html
Then most important JavaScript Development tool in Acrobat
The Console Window (Video tutorial)
The Console Window(article)

Excel 2010 - Multiple Digital Signatures?

How would you add multiple digital signatures to an Excel 2010 workbook?

Hi,
To add multiple digital signatures, we need to create the signatures first.
Then please refer to the following steps:
Click the File tab.
Click Info.
Under Permissions, click Protect Document,
Protect Workbook or Protect Presentation.
Click Add a Digital Signature.
Read the Word, Excel, or PowerPoint message, and then click OK.
In the Sign dialog box, in the Purpose for signing this document box, type the purpose.
Click Sign.
Check the following MS link for additional information.
http://office.microsoft.com/en-us/excel-help/add-or-remove-a-digital-signature-in-office-files-HA010354308.aspx
Regards,
George Zhao
TechNet Community Support

How to put Digital Signature in M.S. Word

Dear Sirs,
We are having Microsoft Office 2007 original licence. We have purchased Digital signature. Please let us know hot to activate digital signature in the word document.
Regards,
Ebe.

See if this helps:-
http://office.microsoft.com/en-gb/word-help/add-or-remove-a-digital-signature-in-office-documents-HA010099768.aspx?CTT=1

Digital signature verbiage

How do I remove the digital signature verbage to the right of the signature but leave the signature. In other words, I just want the signature there and nothing else.

When you set up a digital signature appearance you can customize what appears. Exactly how you do this depends on what version of Acrobat/Reader you're using:
Acrobat 9: Edit > Preferences > Security > Digital Signatures > Appearance > Edit
Acrobat/Reader 11: Edit > Preferences > Signatures > Digital Signatures > Creation & Appearance > More > Appearances > Edit
Once you've set up an appearance, you can select it from the list when signing.

Digital signature and input fields issue

Hello,
I guess that I found some kind of BUG in forms. If you have a form with two text input fields, one as ID ot the field which is computed, read only (user can not change it) and regular value input text field, and digital signature field at the bottom.
Once you sign the form, you can select on the signature field, what gets locked after signing. If I choose both text fields, they look like a label on the PDF after signing.
What concerns me is once you remove the digital signature, the ID text field becomes edditable by the user, which is a bug in my opinion.
Thanks for any suggestions.
J

I tried this and could not duplicate the behaviour that you reported.
I created a form with two fields and a signature field. The first field I set to "Calculated - Read Only", with the following script on the "Initialize" event,
this.rawValue = "1234";
I created a field collection that included the calculated field and associated it with the signature field. I opened the form, the calculated value appears and is read-only, I filled in the second field and signed the PDF. (Both fields were locked). I cleared the signature field and the original Read Only calculated field remained locked, while the second field was editable again.
I used Designer ES version 8.2.1
Regards
Steve

How to remove encryption in digital signature

How to remove the encryption in the digital signatur
I sign document and signature encrypt document hence not allowing future amendments. How to remove encryption ??

Thanks George for the help, I managed to create my own ID using your
approach, Advanced > Security Settings > Digital IDs > add ID, but when I
signed it with the PDF of my signature, it is showed as my name in Typing
such as "XXX YY", instead of the handwritten form. I managed to use the
same PDF of my signature (signed and converted to PDF) last week when I
used the Pro 9, how can I attach my signature the same way in handwritten
form instead of being convered to "XXX YY" and appears "digitally signed"
Thanks again.

Removing signatures in a digital signature field

Hi all, I have a question relating to the topic above that i hope
you guys can help me with;
1) Is it possible to remove digital signatures from form? For instance
if you have a form going thru several approval steps that requires
signatures, and then one step happened to reject, it would be nice to
remove the previous signatures so that they could be re-signed.
2) And finally is there a simpler way to combine digital signatures
and rights management then what was listed in the pdf provided by
Duane (second post from the bottom of the thread)? When creating a policy there is
a checkbox for "Filling in form fields and signing". Is this forsomething else?
Thanks!
Billy

Hi all, came accross a few other problems and hopefully someone can
help me out,
I've managed to place digital signatures on a form and I used a custom renderer to apply a policy for rights management. I used a Document
Form type variable in the process and specified that the form should only be rendered once. Now at some point in my process I wanted to
remove a signature so I tried to use the Clear signature field service. When i run it however i get a stall and an error in my logs
saying "The input PDF is encrypted using APS and could not be opened, hence the operation clearSignatureField can not be performed on Signature Field ConsultantSig. (in the operation : clearSignatureField)"
So figure, ah well, thats cool, i'll just remove the policy as I figured thats what was encrypting it. So i threw in a Remove Policy service and then i get another error in my logs saying that
Cannot coerce object:
<document state="passive" senderVersion="3" persistent="true"
senderPersistent="false" passivated="true" senderPassivated="true"
deserialized="true" senderHostId="127.0.0.1/10.37.129.2/192.168.0.143"
callbackId="0" senderCallbackId="54" callbackRef="IOR:
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
isLocalizable="true" isTransactionBound="false"
defaultDisposalTimeout="600" disposalTimeout="600"
maxInlineSize="65536" defaultMaxInlineSize="65536" inlineSize="0"
contentType="null" length="85284"><cacheId/><localBackendId/
><globalBackendId><DocumentFileID fileName="C:\Adobe\LiveCycle8.2\jboss
\server\all\svcnative\DocumentStorage
\docm1247766543265\66d5bdad216c55badc57fc5b86f44086"/><globalBackendId/
><senderLocalBackendId/><senderGlobalBackendId/><inline/
><senderPullServantJndiName>adobe/idp/DocumentPullServant/
adobejb_server1</senderPullServantJndiName><attributes/></document> of
type: com.adobe.idp.Document to type: class
com.adobe.idp.taskmanager.form.impl.binarycontent.BinaryContentFormInstance
ALC-DSC-119-000: com.adobe.idp.dsc.util.InvalidCoercionException:
Cannot coerce object: <document state="passive" senderVersion="3"
persistent="true" senderPersistent="false" passivated="true"
senderPassivated="true" deserialized="true"
senderHostId="127.0.0.1/10.37.129.2/192.168.0.143" callbackId="0"
senderCallbackId="54" callbackRef="IOR:
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
isLocalizable="true" isTransactionBound="false"
defaultDisposalTimeout="600" disposalTimeout="600"
maxInlineSize="65536" defaultMaxInlineSize="65536" inlineSize="0"
contentType="null" length="85284"><cacheId/><localBackendId/
><globalBackendId><DocumentFileID fileName="C:\Adobe\LiveCycle8.2\jboss
\server\all\svcnative\DocumentStorage
\docm1247766543265\66d5bdad216c55badc57fc5b86f44086"/><globalBackendId/
><senderLocalBackendId/><senderGlobalBackendId/><inline/
><senderPullServantJndiName>adobe/idp/DocumentPullServant/
adobejb_server1</senderPullServantJndiName><attributes/></document>
of type: com.adobe.idp.Document to type: class com.adobe.idp.taskmanager.form.impl.binarycontent.BinaryContentFormInstance
Oh great, a conversion problem when i try to remove the policy! Incidently i get this same conversion problem when i try to remove a signature using the Clear Signature on a form that has NOT had any policy placed on it at all.
So basically, to sum up these are the main issues
1) Can digital signatures be removed from a form that has a policy placed on it, or do i have to remove the policy first?
2) Why am i getting these coercion errors? As i understood it using a Document Form variable is the correct way to go. What should i do to resolve this?
So can anyone shed a little light on this?
Thanks
Billy

TS3212 I have removed my pop-up blocker completely and still receive the following error message when attempting to download iTunes: "The file was blocked because it does not have a valid digital signature that verifies its publisher".....any ideas?

have removed my pop-up blocker completely and still receive the following error message when attempting to download iTunes: "The file was blocked because it does not have a valid digital signature that verifies its publisher".....any ideas?

That suggests that the installer is getting damaged during the download.
I'd first try downloading an installer from the Apple website using a different web browser:
http://www.apple.com/itunes/download/
If you use Firefox instead of IE for the download (or vice versa), do you get a working installer?

Removing of digital signature

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