Reader 8 and Reader 9. Differences in digital signature

What differences between Reader 8 and 9 in digital signature?
Users can use and Reader 8 and reader 9 for sign one documents? (extended rights in Acrobat 9)
Thanks in advance

Can you post screen shots of the signature status from Reader 8 and Reader 9 so I can have a clear understanding of what you are experiencing?
Thanks
Steve

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How Adobe reader will access SAP PKI for digital signatures

Hello,
I am using a ABAP report to upload signed PDF document and validating the signature. However signature which I am using is client side Signature and not the server side. I still hope that I would be able to get these signatures from document.
When I call execute method of CL_FP_PDF_OBJECT it gives this error
Exception from the class CX_FP_RUNTIME_SYSTEM was caught, and that is due to No SSL installed yet.
But I have doubt that, does ADS has trouble seperating the client side (local signatures from document), I hope not!
One more question, If my PKI is setup Using SAPSECLIB or SAPCRPLIB then how will my local adobe reader access to this server to get public keys..
I am facing hard time visualizing, where we will specify in my Adobe acrobat that go to So and so SAP server for keys!! Or Private keys are always with signers on his machine?
Thanks,
Nitesh Shelar

Hello Philipp,
Thanks for your reply.
So as we can add any directory server in Adobe reader and trusted identities, we can do the same with Adobe document services? So its Adobe document services, which actually validates the signature and not the web application server.
I have one more query. I have five level approval on my form where five approvers will use Windows Certificate Store to sign the document. But for this I assume that document needs to be passed from one approver to next approver in offline mode. Because once PDF document goes back to server only data of PDF will be retained after validating the signatures. So if we have multilevel approver scenario as I have in my case, we will always have to use offline mode? I am using the WebDynpro right now, can Guided procedure or ISR can help in this case.(Multiple approvers using digital signatures to sign the document)?
Thanks,
Nitesh Shelar.

Difference between Buffered Read and Read Mode on DataSocket Open

What are the behavior differences when opening a DataSocket connection with a Buffered Read verses Read?

Mlenz,
You can learn about buffering data from our website, or in the LabVIEW help. By using the Datasocket Buffered Read, you are enabling Client-side Buffering. If you do not use a Buffered Read, then the LabVIEW does not store the values in a buffer, which are written when the value changes.
Hope this helps,
TheDillo

Deploy Reader and Reader updates/patches via Group Policy

I'm trying to find documentation on how to deploy Adobe Reader and any of its patches via Active Directory Group Policy.
Can anyone help?
Thanks

you need to go via the distribute link on the reader download page.
Also the setup directory in Reader program files of an already installed Reader will have the msi file.

Is there a difference between digital signature or electronic signature? Can BC do it?

Can anyone point me to an example application of a digital or electronic signature? Does using the term digital or electronic signature require additional technology? Can it be done in BC?

Hi Shannon,
BC doesn't have this feature integrated. You might want to look into some products out there that may help with your requirements.
Adobe has EchoSign that you might be interested in. - https://www.echosign.adobe.com/en/home.html
Kind regards,
-Sidney

How do I configure CAN objects (extended arbitration ID) to read and read trame ?

I follow the instruction in the manual
but my network analyser display "Error Frame" when I write any frame !!!
this is a basic question but i need help !! thank you

I am sorry for the vaugue description.
I am beginner with NI-CAN !!
here is the test code (without extended arbitration ID) with Visual C++ and NI-CAN 2.0:
NCTYPE_CAN_FRAME Transmit;
NCTYPE_STATUS Status;
NCTYPE_ATTRID AttrIdList[8];
NCTYPE_UINT32 AttrValueList[8];
char ObjName[] = "CAN0";
AttrIdList[0] = NC_ATTR_BAUD_RATE;
AttrValueList[0] = NC_BAUD_125K;
AttrIdList[1] = NC_ATTR_START_ON_OPEN;
AttrValueList[1] = NC_TRUE;
AttrIdList[2] = NC_ATTR_READ_Q_LEN;
AttrValueList[2] = 10;
AttrIdList[3] = NC_ATTR_WRITE_Q_LEN;
AttrValueList[3] = 10;
AttrIdList[4] = NC_ATTR_CAN_
COMP_STD;
AttrValueList[4] = 0;
AttrIdList[5] = NC_ATTR_CAN_MASK_STD;
AttrValueList[5] = NC_CAN_MASK_STD_DONTCARE;
AttrIdList[6] = NC_ATTR_CAN_COMP_XTD;
AttrValueList[6] = 0;
AttrIdList[7] = NC_ATTR_CAN_MASK_XTD;
AttrValueList[7] = NC_CAN_MASK_XTD_DONTCARE;
Status = ncReset("CAN0",0);
Status=ncConfig (ObjName,8,AttrIdList,AttrValueList);
Status = ncOpenObject(ObjName, &NetIntfObjh);
Transmit.ArbitrationId = 0x05;
Transmit.IsRemote=NC_FALSE;
Transmit.DataLength=8;
Transmit.Data[0] = 0x00;
Transmit.Data[1] = 0x01;
Transmit.Data[2] = 0x02;
Transmit.Data[3] = 0x03;
Transmit.Data[4] = 0x04;
Transmit.Data[5] = 0x05;
Transmit.Data[6] = 0x06;
Transmit.Data[7] = 0x07;
Status= ncWrite(NetIntfObjh, sizeof(Transmit), &Transmit);
Status = ncCloseObject(NetIntfObjh);
thank you for your help

Is there a way to intercept 'Mark Read' and 'Read later' commands

I posted this into the wrong forum.
Can these commands be intercepted by a C3PO

They are standard token events
Token ID
BFTKN_MARK_READ or 477
BFTKN_READ_LATER or 352
You will have to combine the C3PO API with the Token API to
gain access to these. This is not something I can help with as I've
never created a C3PO.
Roger Thomas, DevNet SysOp 22
<[email protected]> wrote in message news:pu6wc.6690$[email protected]..
> I posted this into the wrong forum.
>
> Can these commands be intercepted by a C3PO

How can I save PDF document after Digital signature ?

I am using adobe reader and after signing the document (Digital signature) I can not save the document.

What is your operating system? What is your Reader version?
I probably won't have an answer for you, but the information may help somebody else who might.

Making Multiple Digital Signatures Read-only in Form (Acrobat 9)

I have created a form which includes two (2) digital signature fields. What needs to occur with the form is Person1 fills the form and then digitally signs it thereby making the form fields read-only . Person2 then digitally signs the form which should make Person1's digital signature read-only.
Here's what I've done:
1) For the Person1 digital signature field, in Digital Signature Properties, under the Signed tab, I have selected Mark as read-only <all fields except these> and selected the Person2 digital signature field.
2) For the Person2 digital signature field, in Digital Signature Properties, under the Signed tab, I have selected Mark as read-only <all fields> since once Person2 signs the form I do not want Person1 to be able to clear the digital signature and make changes to the form.
Here's what actually occurs:
Step 1 above works fine. Once the signature is applied all the form fields are read-only except for the Person2 digital signature field.
The problem is that after Person2 digitally signs the form, even though I selected all fields as read-only, Person1 can 'clear' their signature which leaves all the form fields available for editing and leaves Person2's digital signature still on the form.
I honestly don't care about 'validating' signatures on this form since it's going to be printed but I cannot allow Person2's signature to remain on the form and allow Person1 to edit the form.
--Mike.

Hi!
I have the same problem. Have not been able to figure it out, although tried everything.
Hope somebody can help
- MackeMan

Digital Signatures not enabled in Reader 8

I have created a form in LiveCycle Designer 8 and I have used the Digital Signature feature, but when the end user opens it up in Reader 8 they are unable to sign the document. Am I missing something is the creation side of it?

Where could this be enabled - in the designer?
Thanx for help.

On windows 8 adobe touch reader, where do i get options to validate/verify digital signatures in pdf?

i have windows 8 OS in my laptop, i need to verify digital signatures present in my pdf. the steps to verify/validate them are-
1. Open the PDF file in PDF Reader.
2. Left-click on the Digital Signature field.
3. Click "Verify/Validate Signature".
4. Click "Signature Properties".
5. Click "Validate Signature or Verify Identity".
6. Add "Contact information for certificate owner:"
7. Click "Add to List".
8. Click "Close".
but i cannot find such options in adobe touch reader.
please help to verify the digital signatures.
thank you

Unfotunately, this functionality is not supported in current version of Adobe Reader Touch. But, we have noted down your feature request and we might consider it for our future releases.

Why does a digital signature with a CA certificate not validate in adobe reader

My client has adobe reader and can not validate a digitally signed document which has a CA certificate which normally appears in the adobe root store. it comes up that one of the signatures have problems when he signs. when i email him a document that i sign it validates the signature. his signature validates on my side.

Did you find any solution for this problem?
i'm trying to implement something similar but i don't know how.
thanks in advance!

Acrobat 9 Standard and the Digital Signature usage right

Acrobat 9 Standard is apparently able to apply certain usage rights to a document. I am trying to confirm whether or not the digital signature usage right is included. The
Acrobat 9 product comparison seems to indicate it is not, but the online help implies that it is.
Can someone with Acrobat 9 Standard confirm this for me by testing a document that you've enabled for use with Reader by attempting to sign a digital signature field with Reader?
George

In the office area, the Pro version might be good to have for the forms and other features. For the general library, Reader is probably adequate. Actually allowing PDF creation on public machines can be an issue. In a small libary system, Acrobat might be reasonable where you do not have to deal with a large, diverse population. However, for basic PDF creation, only Std is needed. Having both AA8 and AA9 on the same machine can lead to problems. However, if you remove one, you will likely have to repair the other.
The problem with older versions is that they may not properly read some of the newer PDFs that might be downloaded. For the latter, you could install the latest version of Reader, but you need to be aware that you may have to deal with issues of right clicking (windows) on a file and selecting which application to open a PDF with. For forms and some editing, the Pro version would be good to have. You also have PDF Optimize and PreFlight with the Pro version that generally are not including in the Std version.
To help compatibility with the files you create, you can select Start>Printers>Adobe PDF preferences (right click on printer). In the settings tab>Default settings> select at least Std or better Press or Print and then push edit. Under the general tab select the compatibility and set it to AA8 so that every thing is compatibile with the oldest version of Acrobat you have.
If you have more than one computer in the office, you might consider having AA8 on one and AA9 on the other. Do check and be sure you have licenses for whatever you have and that someone has not come in and installed a pirated version. Also be sure you keep the original CDs and licenses (or if they were downloaded, burn the downloaded version to a CD as an archive and write the SN on the label).
Now that I have confused you, are there more questions?

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)

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.

Reader 8 and Reader 9. Differences in digital signature

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