Adding a digital Signature in Acrobat X Pro

A recent update seems to have altered the digital signature. Before there was no problem and I used the signature I created in Acrobat 9 after upgrading to X Pro. But yesterday (after the update) I was asked for a password for the first time. Eventually I deleted the ID and tried to create a new on but cannot. I follow the steps - a new ID, then a new PKCS#12 file; I fil lin the details requested then on the next page it asks for a file location and password. I accept the default location and type in a password but after the enter I get a message that the passwords do not match.
How do I sole this or am I doing something wrong?

Do you enter the password twice? People have reported that the second password field isn't visible when using a low resolution screen.

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Digital Signature crashes Acrobat 9 Pro

An error occurs when trying to Sign any PDF document, even when opening a very simple, one word (Times New Roman text only) PDF document. After opening the PDF in Acrobat Pro (WinXP Pro SP3), selecting Sign, Sign Document, Acrobat allows proper placement of the signature box, and accepts the password for the selected Signature ID. When <Sign> is then selected, Acrobat offers to save the document, and when the save location (any location) is selected, Acrobat returns the error below.
Adobe Acrobat 9.3 has encountered a problem and needs to close. We are sorry for the inconvenience.
Error Signature
AppName: acrobat.exe AppVer: 9.3.2.163 ModName: acrobat.dll
ModVer: 9.3.2.163 Offset: 00135fb9
The same source PDF document can be modified, or password protected, and then saved without a problem. Only when a digital signature is applied does the error occur. Acrobat has successfully Signed and saved documents on this PC previously, but starting experiencing this error about week ago. I have uninstalled Acrobat, reinstalled ver. 9.0 and applied the two updates to 9.3.2, and have generated new Digital Signatures, all with the same resulting error when signing a document. The new, signed PDF document is actually created, and a Digital Signature is found in the document, but is invalid, reporting:
Error during signature verification.
Signature contains incorrect, unrecognized, corrupted or suspicious data.
Support Information: SigDict /Contents illegal data
I have tried the troubleshooting steps in http://kb2.adobe.com/cps/403/kb403613.html, but without any progress; the error continues to remain. Any advice on how to resolve this will be greatly appreciated. Thanks.

Hi Mike,
After the Save As operation was done, did you see the signature appearance displayed in the signed signature field before you closed the doc? And if did see the signature appearance, did you happen to notice if there was a green check mark displayed in the blue message bar at the top of the file?
Thanks,
Steve

Are accessible multiple signatures in Acrobat XI Pro possible?

I'd like to access two saved signatures in Acrobat XI Pro but I haven't found an easy way to do it in order to use them for signing documents. Is this possible? If so, how? If I haven't created a digital ID or a digital certificate are my signatures considered digital signatures?

I am not sure what you mean by "access saved signatures." My guess is you've used a stamp or some other method of adding what is essentially a picture of your signature.
Anyway, to sign with a real digital signature you need to create a Digital ID. That kind of sig allows you to create a signature appearance and certificate that you can reuse. You'll also be able to review and control changes to the document over time.
Alternatively, you can use the EchoSign service which also has a host of useful features.
HTH,
Ben

Problems getting multiple digital signatures in Acrobat Reader form

I have a Word document that I converted to a form in Acrobat 9 Pro. I added two separate digital signature fields, one for a conference presenter and the other for the conference planner to sign. There are also a number of text fields where presenters give bio information. I saved the document using the Extend functionality so that a user who only has Acrobat Reader would be able to fill in the form, sign/save it, and then send it on to the conference planner. The first part is working fine. However, once the first user signs/saves the document, the extended functionality goes away. When the conference planner receives the document, it is essentially locked. She cannot sign and save.
Is what I'm trying to do possible? I feel like this would be fairly commonplace, but I may be going about it the wrong way. Thank you for any pointers.
-Brian

Hi Steve,
I have met similar problem. Using Adobe 9.4 I have prepared document with three signature fileds. I did signature in one of the field and then did extension to Reader. When I checked the propierties of document it occured that signing was not allowed. I couldn't sign it second time (not saying of Reader's user).
Is there missing any plug-in or something is wrong with a configuration (mentioned "Nothing has happened when signed" was set up)?
Wlodek

Can't clear signature box (Acrobat X Pro)

Hi,
I have read some into this and have tried some different fixes with no luck. I had to re-image a person's PC who uses PKI certs. on a CAC to sign PDFs. Acrobat X Pro was re-installed and updated. The digital ID on the CAC is the same before the re-image and it validates. I went to ECA.ORC.com to update the HW4/5/signing certs. and had them jacked into Outlook (just in case it calls on that for some reason). The edit function under tools is grayed out and there is no "security" on the PDF. The customer claims he could right click the signature box and the option to clear would be there; it is not there now. What am I missing here? Thanks.

Below is what my customer saw but its for v.11 and he has 10 Pro. The Key mentioned is not even there in 10.
Digital Signatures
Data type
boolean: DWORD value > REG_DWORD
Default
null
Version #
11.0+
HKLM Path
HKLM\SOFTWARE\Policies\Adobe\(product name)\(version)\FeatureLockdown\cSecurity\cDigSig
Summary
Specifies whether to disable and lock the ability for a signer to clear their own signature.
Details
Possible values include:
0: Disable signature clearing.
1: Enable signature clearing.
GUI mapping
The Clear Signature menu item which appears when a user right clicks on a signature.

Problem with digital signatures in Acrobat 8

Is it true that the ability to directly create a digital signature field is available in Acrobat 7 & 9 but not in 8?
I have Acrobat Standard 8.0.0 and want to create blank signature fields before I certify a document, but can't find a way to do this directly. I can add a signature then delete it to create a blank field, but this is a very slow way of doing it.
I have read Forum articles saying choose Tools > Forms > Digital Signature Tool to create a blank field, but I have no Forms item in my Tools menu. Am I missing something, or do I need to upgrade to Acrobat 9 (or downgrade to 7!)?

Hi Brian,
It's not that version 8 per se cannot add a signature field, it's that you cannot create or edit form fields in the Standard version. If you had Acrobat 8 Professional, or you buy Acrobat 9 Pro, then you would have the capability to add and edit form fields (a signature fields is just a special purpose form field).
Steve

Acrobat 9,10 failing to validate digital signature while Acrobat 8 validating it.

I am facing an issue while validating a digital signature. I applied a certified signature with “Annotation, form fill-in, and digital signatures” but
when I apply Redaction “find and permanently remove” on a digitally signed document, Adobe Acrobat 9 and 10 complains that signature is Invalid But Adobe 8 is validating it. I have analyzed that Adobe Acrobat applying Redaction in append mode and original content of signature remains unchanged after Redaction.
Can someone let me know what should be the actual behavior?
Why Adobe Acrobat 9 and 10 failing to verify the signature even Adobe Acrobat keep enable Redaction which means it is allow to apply in a certified signed document with “Annotation, form fill-in, and digital signatures” option.
Prompt responses are greatly appreciated!!

When you sign, you should see where you can select the signature appearance name from a dropdown in the dialog.

PubSec Digital signatures in Acrobat 9

Hi,
i m developing a digital signature plug-in, PubSec, to be specific. My plugin will, hopefully, digitally sign open pdf, and also able to verify them. The signature i am creating will be standard so that any other plugin, including Acrobat's own, can also verify it, and my plugin can verify others too. For this, i will leave the Filter unset and only set subfilter appropriately.
Now, when implementing the signature creation and verification callbacks i found it very difficult, and in some cases am stuck, while getting required information from the provided arguments of the callbacks. For instance, from this structure "PSSigValidateDialogParams" i want to extract information such as:
- signature's verification status
- signer's certificate
- reason location, etc.
But so far i can only get the verification status as:
ASInt32 sigValDigest = ASCabGetInt( sigValCab, PROP_SigVal_Digest, kDSSigValUnknown );
ASInt32 sigValTrustFlags = ASCabGetInt( sigValCab, PROP_SigVal_TrustFlags, kDSSigValUnknown );
ASInt32 sigValId = ASCabGetInt( sigValCab, PROP_SigVal_Id, kDSSigValUnknown );
And i dont even completely understand what each of these mean. And i cannot get the rest of the info from the structure as well, as i cant find any discription about them in documentation. I did find a "Digital signature API Reference" document for acrobat 6, but none for acrobat 9. And even in acrobat 6, there is no description for most of the functions and structure, just the prototype.
Please help me get the above information from the PSSigValidateDialogParams, or atleast point me towards the documentation of the digital signature api reference for acrobat 9. Thanks

Hi,
Go to: http://livedocs.adobe.com/acrobat_sdk/9/Acrobat9_HTMLHelp/API_References/Acrobat_API_Refer ence/Digital_Signatures/PubSec.html#kPSSigTrustUntrusted
and search for DSValidState
enum DSValidState { DSSigBlank = 0,
DSSigUnknown,
DSSigInvalid,
DSSigValid,
DSSigDoubleChecked,
DSSigValidStateEnumSize
and here: http://livedocs.adobe.com/acrobat_sdk/9/Acrobat9_HTMLHelp/API_References/Acrobat_API_Refer ence/Digital_Signatures/PubSec.html#kPSSigTrustAll
enum DSSigValState { kDSSigValUnknown = 0,
kDSSigValUnknownTrouble,
kDSSigValUnknownBytesNotReady,
kDSSigValInvalidTrouble,
kDSSigValUnused,
kDSSigValJustSigned,
kDSSigValFalse,
kDSSigValTrue,
kDSSigValEnumSize
Regards,
mwak

Multiple Digital Signatures in Acrobat 8.1

Hello to all, I am trying to have two people place two (2) digital signatures (using the method: Advance Menu Item | Sign & Certify | Place Signatures) on a PDF document.
There are no problems placing the first signature, but when the second person adds theirs, the first signature ends up having a yellow exlamation mark over the green check mark with the statement: "The revision of the documnet was covered by this signature has not been altered; however there have been subsequent changes to the doucment.".
I must have both signatures showing "green check marks", otherwise my document can be rejected when I submit it. I have version 8.1 of Acrobat and need a solution fast as I need to submit this document tomorrow.
Thanks in advance for any help provided.

I believe this behavior was changed in Acrobat 9.

Can't create a digital signature with acrobat 8

We have acrobat 8. My husband has a digital signature but when I try to electronically sign, his digital signature pops up and does not give me the option to create my own. How can I create my own digital signature on this software?

I don't have Acrobat 8, but in Acrobat 7 & 9 it's under "Advanced > Security Settings", which prings up a window where you can add a digital ID.

I created buttons and added a digital signature, when I saved and reopened my buttons disappeared?

I created a multi page PDF with numerous buttons for navigation. I realized I had forgotten to sign one of the individual pages, (I had recently added) so I simply put in a digital signature. I saved the document and reopened it later to find it made all the buttons non functional and uneditable... Some of the buttons were transparent (placed over written dates for reference) and some were colored boxes with text. The colored buttons became "flattened" and I could no longer edit them or click on anything.
Why did this happen? Is the digital signature to blame? Is there a way to edit the existing buttons or do I need to recreate all of them along with the actions associated with each? any assistance would be much appreciated!

It's possible to set up a signature field to lock other fields when it is signed. Could that be what happened? It also possible to choose to lock the file when signed to prevent changes. It's hard to tell what happened without seeing the file.

File size increases dramatically after digital signature with Acrobat X

I signed a PDF file using Acrobat X.
File size of unsigned document: 200 k
File size of signed document: 3200 k (more than ten times bigger)
Any idea?
BR
Harald

Finally I found the solution.
The file size increase is a result of the embedded information used for long-term signature validation.
If you do not need this feature, you can turn it off:
Preferences > Security > Advanced Preferences > Creation tab
disable "Include Signature’s Revocation"
Help page: http://help.adobe.com/en_US/acrobat/X/pro/using/WS934c23d7cc8877da1172e0811fde233c98-8000. html
BR
Harald

Digital Signatures in Acrobat 5?

I have acquired a certificate (p12 file from TrustCenter thruough my employer). I am able to sign/certify documents in Acrobat 8 Pro. Most of our users, however, are still using Acrobat 5 Pro and would like the ability to sign PDF's. Is there a way to do it natively or via a 3rd party plug-in?
Two items:
1. Upgrading everyone to Acrobat 8 or 9 is not an option.
2. Creating PDF files in my Acrobat 8 and enabling the features in Acrobat reader is also not an option since I am the only one with a fairly recent version of Acrobat.
Thank you
Corey

As far as I know, you are out of luck on that one.

Digital Signature using acrobat x

I've made a form and included a field for a digital signature. I saved it as user enabled but it still won't let someone using reader only sign the document. I need help with this.

Seriously? Wow. Ok. Thanks. This is the product that was purchased for me through work so I'm stuck I guess.

Adding font to use in Acrobat X Pro forms

In Acrobat X Pro (on Mac OS) I have created a form text box. I have the font I want to use in the text box on my system, but it is not listed in the drop down list in the appearance tab of the box properties. How can I get to use this font?
Thanks!

Do you enter the password twice? People have reported that the second password field isn't visible when using a low resolution screen.

Adding a digital Signature in Acrobat X Pro

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