How do I modify a digital signature

I received a document in PDF format that needed a digital signature. I went through the process of creating a simple signature in text only while still within the document, but had a typo in my name. Now I can't seem to be able to edit or delete this signature file. I then launched Adobe 8 on my computer and created a signature file using Edit > Preferences > Identity with the correct infomation. However, the incorrect version is still being used without any ability to choose a different file.

You should clear the signature and then re-sign. You should be able to clear it by right-clicking and selecting "Clear Signature". When you re-sign, select the newly created signature appearance.

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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

In Adobe X Pro, how do I create a digital signature in my document so that my receiver is able to sign it electronically.

In Adobe X Pro, how do I create a digital signature in my document so that my receiver is able to sign it electronically.

If the other person will be using Reader, you should first add a digital signature field and then Reader enable the form. In Acrobat 10 you'd select: Tools > Forms > Edit
to get into form editing mode. You'd then select the signature field tool to add a signature field.
Once you have the document finalized, Reader-enable the document by selecting: File > Save As > Reader-Extended PDF > Enable Additional Features
being sure to save to a new file so you don't overwrite the original. If you don't Reader-enable, Reader users won't be able to digitally sign.

How to export & reconstruct a digital signature

I would like to submit a reader-enabled pdf form with a digital signature from within a browser.
I'm currently using CoSign Digital Signature to successfully create the signature. I have created a test form with Acrobat X Pro and assigned the "Submit a Form" action to the submit button. The form is configured to submit to a perl cgi, with the Export Format set to FDF with the following settings...
- Field Data
- Incremental changes to the PDF
The post data is received as the POSTDATA parameter and printed back to the browser as content-type: application/vnd.fdf. However, when the fdf is printed back to the browser the digital signature is not included in the signature field. The rest of the form is populated successfully. If I log the POSTDATA value, I can see what appears to be the digital signature.
According to the Adobe docs...
"FDF Exports as an FDF file. You can select one or more of the available options: user-entered data, comments, and incremental changes to the PDF file. The Incremental Changes To The PDF option is useful for exporting a digital signature in a way a server can easily read and reconstruct."
My question is, how do I reconstruct the digital signature so that I can save it offline within the PDF file?
Thanks

You can't sign a blank document simply by importing an FDF. The data is in the FDF, but the appened saves (aka incremental change) would have to be extracted from the FDF (e.g., using the no longer supported FDF Toolkit) and then concatenated with the original blank form that was used by the person who filled-in and signed. I can't say for sure this will work any more anyway as Acrobat/Reader has changed the way this works and does a Save As (as opposed to Save) when a document is signed, so there is no incremental change data any longer.

How can I disable the digital signature feature?

how can I disable the digital signature feature?

If it can be done (doubtful) there will be details in the Enterprise Deployment documentation. Enterprise Deployment (Acrobat and Reader)

How do I add a digital signature to my online form?

With regular Adobe (Standard or Professional) software, you can add a digital signature line. I want to know how I can do it on FormCentral.
When I PDF the form I created on FormCentral and try to add the digital signature in Adobe, I get a message that I cannot due to security settings of the document.

Formscentral does not support forms with digital signature workflows. I suggest you see if our Echosign product meets your needs.

How do I create a digital signature on a TCP or a UDP flow?

I am trying to convert samples of a voice signal, which is intercepted from the microphone, into fixed length digital signature bytes (using Hash, or) and attach these fixed length bytes to a communication session between two terminals (UDP or TCP "HTTP"). The other receving end should be able to identify the person at the sending side.
Any thoughts how I could do this?
Any help is most appreciated.
Sam

Sam,
If you have the Sound and Vibration toolkit it may make some things easier for you regarding the voice-recording aspect, but if you aren't recording and playing back the actual sounds, just using this for detection and digital signatures, you shouldn't need to worry about this.
1. For this you are going to be doing some form of Analog Input. Then you will be storing this data to a file. There are examples for both of these aspects in the NI Example Finder from within LabVIEW.
2. If you are going to be doing the FFT, there is a VI under the Mathematics Palette that performs this operation. Again you can use the same example for saving data to the file.
3. You would need to figure out what needs to be done to create a digital signature for this. There may be something in the Sound and Vibration toolkit for this, but I do not know.
4. For the UDP or TCP transfers, there are several examples for doing this and they cover how to create the connection and transfer / receive data. These too are in the NI Example Finder
5. This goes back to number 4, this would indeed be a separate program, but everything else would just be one project and one program.
6. This would depend on how the ID was created in step 3, again whether you do the algorithm on yourself or not. For comparing to the table, you would use a Search Array and some comparison functions, all depending on how you stored the data initially.
7. Graphs are all available on your Front Panel of your VIs and you would just wire up the data that you'd like and have it displayed on the graph.
There will not be an example for everything that you are wanting to do. The examples are meant to help you get started. Have you used LabVIEW before? I would recommend doing the 3 Hour LabVIEW Introduction Course to help you get started. This will cover some of the basic concepts that you will need to know in order to create your application.
Unfortunately I cannot write the code for you, only guide and direct you. LabVIEW is a programming language and does require the user to lay out and create their own program. You will not be able to just find three or four pre-built code-snippets and connect them together to get your appliction working the way you want it. You will need to develop the applications yourself.
Regards,
Jared Boothe
Staff Hardware Engineer
National Instruments

How do I delete a digital signature in adobe acrobat 8 as it has been spelt incorrectly?

A digital signature was created in adobe acrobat 8 professional but has been spelt incorrectly - how can I delete or edit it?

What if you do this:
To delete photos from your device
In iTunes, select the device icon in the Devices list on the left. Click the Photos tab in the resulting window.
Choose "Sync photos from."
On a Mac, choose iPhoto or Aperture from the pop-up menu.
On a Windows PC, choose Photoshop Album or Photoshop Elements from the pop-up menu.
Choose "Selected albums" and deselect the albums or collections you want to delete.
Click Apply.
But I do not think it will work since you can only sync/unsync with one iTunes library and the iPod sees the rebuilt computer as a new iTunes library.
- Do the following to restore the iPod and not lose anything:
- iTunes Store: Transferring purchases from your iOS device or iPod to a computer
- Transfer other music by using a third-party program like one of those discussed here:
Copy music
- If you have synced photos then you need a program like TouchCopy or PhoneView which are paid. They also do music.
- Connect the iPod to the conmputer and make a backup by right clicking on the iPod under Devices iniTunes and slect Back Up
- Restore the iPod from that backup
Note that the backup that iTunes makes does not included synced media like apps and music.

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.

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?

Delete or modify multiple digital signature options

We use Acrobat 9 Pro (9.4.5) on an XP PC. We use the Windows certificate to self-certify our digital signatures. We use different signatures depending on what we're signing for - some signatures indicate authorship and some signatures indicate review & approval, but we don't use forms that indicate one or the other, so we indicate it in the signature appearance we choose. So when we sign a document, a pop-up "Sign Document" window appears. Our created ID is the default. In the middle of the window is a drop-down menu titled "Appearance." I want to delete options from this drop down list, and re-name other options. I tried creating a new appearance with the same name as a previous, hoping it would over-write the first one, and now I have 2 with the exact same name, which is even more confusing. Please help, how can I clean up this drop-down list?

Can you remove it by selecting: Edit > Preferences > Security > Digitial Signatures > Appearance > [select an appearance] > Delete

How do I do a digital signature using the inbuilt camera

I am using a MacBook Pro 13" and today I was shown in PC world how to use a digital signature by using the inbuilt camera. Is this possible with this model or is it only with the Retina models?

You may find this article helpful.
http://9to5mac.com/2014/02/15/how-to-use-preview-to-put-signatures-on-pdfs-pages -documents-and-mail-messages/
Click the blue Reader button at the end of Safari address bar for easy viewing.

[b]How to validate user's digital signature by ClientAuthentication?[u]HELP

Hello,
My Problem:
By client-certificate-based authentication the first step is to prove "Does user�s public key validate user�s digital signature?". How can I prove this on the ServerSide manually, resp. I want to verify it with java classes on the server side additional to web-server. Actually the Web-Server verify this through the SSL-Connection, I'm conscious of this, but how can I additionally verify this step with java classes.
Thanks a lot

You would have to code it all again from the client side: obtain the certificate and private key from the keystore, send the cert, sign it, send the signature, and have the server receive the certificate and check the signature, all as part of your application protocol.
Instead of all this duplication I have no doubt that you should just point your firm at RFC 2246 in which the Certificate and CertificateVerify messages are mandated, or at the pages of Rescoria's book that I pointed you to before. The transport already meets the requirement and there is zero value in re-implementing it. Indeed there is a negative value: (a) there is a development time and execution time cost which they should consider, especially the development cost, and (b) if you get it wrong you are going to reject legal clients. (There is no possibility that you will accept illegal clients by programming error. SSL/TLS works.)
EJP

How many space takes a digital signature

Hello,
I wait for the activation key of JCOP to use with Eclipse. so I can try nothing, only plan and clue some code snippets together. For planning my data structures I need to know how big a digital signature is.
Thank you very much.
mimaxx

It depends on the encryption algorithm you use to create the actual signature, i.e. if you use 1024 bit RSA, the signature will be 1024 bit. Easy peacy.

How to move a Preview digital signature?

I made a digital signature in Preview to use to sign pdfs. I did this on my Air because that has a camera (you have to take a picture of your signature). I want to move this digital signature I made on the Air to Preview on my Mac mini (where I don't have a camera) so I can use it there, too. I don't see an obvious way to do it. I tried copying pref files over and that didn't work. Any ideas about how I can do it?

Thanks Linc, that worked perfectly. It's pretty tortuous for a non-techie like me, but follow it carefully and it does work - though I'd recommend looking at the comments underneath, because there's a bit of trickery to get the Preview Signature Privacy to show up (or at least there was for me). I am now busily digitally-signing every pdf I can find. No doubt the novelty will wear off eventually.

How do I modify a digital signature

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