Dynamic digital signature appearance

I searched but it seems like the subject hasn't been treated.
Ok, I've read "Digital Signature Appearance" by Adobe, and find out how to put my own image when displaying digital signatures.
Looking at some tutorial from the iText authors, I saw that it is possible to specify different images to display on the signature validation
status.
This is a very cool feature, but unfortunately it is not documented at all in Adobe's documents... (I had to found a patent description document
to get more info)
Here is what I've discovered: the signature appearance is organized in several layers (4 defined by Adobe, the others by the document producer),
painted sequencially when showing the document.
What I'm looking for is the way to the various layers are used: one may be used when the signature validation status is unknown, another when
the validation was successful and a last when it failed.
For now, all my layers are painted, no matter of the signature validation.
(description in "Dynamic preview of electronic signature" is on page 9)

The multiple-layer model for digital signature appearances in PDF was deprecated and is no longer part of the ISO standard for PDF (ISO 32000-1). The signature appearance is a STATIC thing - as it should be - and can not be changed "on the fly" by the content of the PDF.

Similar Messages

Change Default Digital Signature Appearance

Looking for assistance on this one because I'm not finding the information anywhere.
Is there a way to change the default Appearance option from "Standard Text" to another custom created Appearance. Or even remove the "Standard Text" option altogether leaving only the custom created Appearance option available?
We have Users who continue to utilize the "Standard Text" option for signing documents instead of the custom one available as the next option down in the drop-down box.
Thanks,
BSwayngim

Hi,
There is no method of setting the default. The registry keeps track of the last appearance used, but it's by index position and if someone added (or removed) a custom appearance it would negate what you are trying to do.
However, if everyone is going to have the same custom signature appearance available to them at signing time you could use Seed Value to enforce the rule that they select a specific appearance. To read up on how to use JavaScript to set a Seed Value go to http://livedocs.adobe.com/acrobat_sdk/9/Acrobat9_HTMLHelp/wwhelp/wwhimpl/js/html/wwhelp.ht m?href=JS_API_AcroJS.88.1.html#1515776&accessible=true and then click the Search button. Search for Seed Value and then select signatureSetSeedValue from the list of returned items.
The JavaScript code would look like
var f= this.getField("Signature1");
f.signatureSetSeedValue({
appearanceFilter: "My Custom App",
flags:0x100
where the name of the signature field noted in the first line and the name of the appearanceFilter would depend on your naming convention.
I hope this helps,
Steve

Placement and appearance digital signature

I have a couple of questions about the placement and appearance of the digital signature.
First the placement:
Is it technically possible to place the digital signature after Word-fields when you convert Word to PDF/A? For example the { DOCPROPERTY "Name" }? Where the name is a custom field.
Appearance:
What I am trying to achieve is to get a digital signature appearance just like the one on an analog paper. Just the name, date and a picture of the analog signature (created by tablet, scan or mouse). Is it possible to get rid of the following:
Question/check mark?
The text "Digitally signed by"?
The line with the attributes from the certificate?
Thanks in advance!

Conversion of Word->PDF (PDF/A) is a specific application process (be it Acrobat or some other program). The visual appearance of the signature is defined by the application that you are using to sign the PDF.
This forum is for PDF file format discussions not application ones - so try the forum for the program (Acrobat?) you are using.
As a general answer - YES, you can put the signature anywhere on the page you want with whatever contents you want.

Digital Signatures / Custom Signature Logo

Good morning -
I'm getting quickly acclimated to the concept of digital signatures as my employer is stiving towards a paperless office. I have several questions that have come up, but I'll start with (hopefully) an easy one:
When a digital signature appearance is beign created, one option is "Logo", which will place the Adobe "A" behind the signature image and timestamp information. Is it possible to put a custom logo behind there - such as my company's emblem?
Many thanks,
Warren

Hi Warren,
The answer is yes, you can replace the PDF trefoil (it's not the Adobe A) with your own logo as the background. Open the image file in Acrobat and it will get converted to a PDF file. Don't worry about cropping the image. For this you do need Acrobat as the free Adobe Reader cannot convert images to PDF. The next thing is to save the file with a specific name and to a specific location.
The file name you are going to use is SignatureLogo.pdf and please note there is no space in the file name. You need to save the file in the following location:
Windows XP: C:\Documents and Settings\<user>\Application Data\Adobe\Acrobat\<version>\Security
Vista or Win 7: C:\Users\<user>\AppData\Roaming\Adobe\Acrobat\<version>\Security
Macintosh: \Users\<user name>\Library\Application Support\Adobe\Acrobat\<version>\Security
I'm sure you've figured out that <user> is going to correspond to the name of the logged in user and <version> is the current major version of Acrobat or Reader. Although Acrobat and Reader get installed into different locations, and even use separate registry entries, they do share the users application data directory.
Steve

Digital signature all pages

How I can put a digital signature on every page?
For example I have a 10-sheet document and want to put the digital signature appears once in all the leaves.
Only one signature and you really are signed all the pages (so visible in all pages).
Do I need another software? ¿What?
Is it only can be done with scripting? A few examples?
PS: I have Adobe Acrobat Pro X
Thanks.

Yes, I need a digital signature field on every page, but exactly the same digital signature on every page. Impossible?
Document signed on all pages with the same digital signature

Adobe XI when i use signature option i try to use rectangle, it gives option of certificate signature, does not give me webcam or digital signature or any other option to sign

when i use signature option i try to use rectangle, it gives option of certificate signature, does not give me webcam or digital signature or any other option to sign, have downgraded to Adobe X, no options show. Have upgraded back to XI no change. Free software I am using currently.

There are two types of signatures in PDF: electronic signatures, which are just images (stamps, text, image) and digital signatures.
If you want to use electronic signatures in Acrobat XI go to Fill&Sign->Place Signature. If a drag rectangle for the digital signature dialog comes up, you have selected digital signatures and Acrobat/Reader remembered it. Cancel it, go back to Fill&Sign->Place Signature and click a triangle to the left of "Place Signature". Then click on "Changed Saved Signature" and select the electronic signature type you want to use.
If you want to use digital signatures you can create custom digital signature appearance. Go to Edit->Preferences->Signatures->Creation&Appearance->More. In the "Appearances" section click "New". You will be presented with the dialog that allows you to create a custom appearance. If you want to put there your picture or image of your ink signature, you need to prepare this image as a file beforehand, select "Image" radio button, browse to the location of your image file. In Reader you can use only PDF as your image file. In Acrobat you can use many more file formats: JPEG, PNG, etc.

How to digital signature in check printing.

Hi Team,
A new digital signature has been given to me by payroll team and requested me for some configuration changes so the new digital signature appears on the check during check printing program.
Can some one give me step by step procedure of how to do this in SAP.
thanks and appreciate your help in advance.

Hi Team,
Please let me know how to do this in SAP?

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.

Creating and using a digital signature - Not Working / Help Please?

I have Acrobat X Pro (10.1.11). I am trying to setup a digital signature that is either a scan of my own signature, or a digital version that looks like hand writing. I've gone through a number of help documents and I am still getting something different. What I get is a Printed Name with some text next to it (i.e. Digitally Signed by "my name" DN: cn="my name, o, ou, e-mail, etc.".
Anyone have any idea how I can start from scratch and create a digital signature that I can simply place on PDFs that looks like my siggy?

I believe you are confusing digital signature and digital signature appearance. You can create a custom appearance and use it in your signatures. Go to Edit->Preferences->Signatures->Creation & Appearances->More... In the Appearances section in the bottom portion of the dialog select "New" button. Configure Signature Appearance dialog comes up. In the Title field you enter the name of this appearance. In the Configure Text section of the dialog you check which values you want to have in the text part of the signature appearance (you can deselect them all). In the Configure Graphics section you can select one of the radio buttons. "Imported Graphics" allows you to browse to the file that contains your scanned signature (or your picture ). "Name" will place your name as it appears in your signing certificate.
Then when you sign a PDF in the "Sign" dialog click on the down arrow in the Appearance: section next to the displayed appearance name (out-of-the-box is says "Standard Text") and you'll get a drop-down list that contains the name of the appearance that you created. Select it and that will be the appearance of your digital signature. This same drop-down list contains "Create New Appearance..." item which when you select it allows you to create a new appearance in the same way as I described in the first paragraph.
After you select your appearance it will show up when you sign again.

Digital signature properties field name via javascript

I am creating secure digital signature fields with random number names with similar prefixes. The idea is to have multiple fields available in a single regular PDF (non portfolio). So on each sheet we sign 3 fields. One field is a name, another is a date and the last is a release. This goes on every sheet and the PDF would contain up to 1500 pages. Adding a random number to the end of each field name was the only way to make this work....now I have a problem of finding the particular fields for my script to sign the sheets.
I am guessing that there must be some way to identify how many fields I have on a sheet and return the name of all the fields. If I can get the name of all the fields I can use that info to run my script to place the digital signature appearances in their correct field. My field names all begin with either 'Date', 'Sig' or 'RFC' followed by a random number to avoid duplicate fields.
So in a nut shell, how can I find the names of the fields via JavaScript?
Thanks you!

Are you able to add another prefix, specifically using hierarchical field names that include the page number? For example, on page one the fields could be named:
P1.Date[random number goes here]
P1.Sig[random number goes here]
P1.RFC[random number goes here]
You can then get all of the P1 fields like this:
var fields = getField("P1");
and then use the getArray method to get an array of the individual field references and iterate through the array.
Otherwise, you can loop through the fields and look at the page property of each to determine which ones are on which pages. You can use the getNthFieldName document method and numFields document property to do this.

Digital Signature stopped working

Have used Acrobat digital signature infrequently for several years. Recently stopped working. Attempted on several different docs with same result. Goes thru steps of placement and digital signature appears. However, nothing happens after hitting the sign button. The signature does not appear in the doc nor in the saved doc. Tried several things suggested on line. Nada. Suggestions? Acrobat 9.5.5 OSX 10.8.1

If the user is not using Adobe Reader, but some other PDF viewer that doesn't support digital signature fields, you will see this sort of thing. The Preview application on the Mac, with is the default PDF viewer out-of-the-box, is notorious for this (as well as corrupting PDF forms). Even if someone has Adobe Reader installed, it may not be what they're using to view your form. I imagine a good precentage of your users will be using Macs given your setting, so you'll have to address this through user education.
Also, you mentioned you will be receiving more than 500 returned forms. This would be a violation of the Acrobat License Agreement, which limits the number of returned forms that you can use to no more than 500 if you distribute an enabled document to more than 500 recipients. But there's a good chance that if you contact Adobe they will say it's OK regardless. Just try to get it in writing...

Dynamic date in Digital Signature

I am looking for a method to add a custom dynamic date field in a digital signature or modify the location and format of the Date field that is already included in the Digital ID Appearance. We are not interested in using a dynamic stamp, if we can avoid it. We are interested in the extra layer of security that the "Sign & Certify" process provides.
We have a signature box on a Construction Title Sheet that has the Date field below the Signature field and I have the custom image created and would like to add a dynamic date that is applied when I sign the document. I tried a javascript in the same method that you would use in a dynamic stamp but it is not working.
Can anyone lend some assistance?
Thanks in advance!
Billy Sweeney
Delaware DOT

No, I am not adding blank signature fields to a PDF. Well.. at least, that wasn't what I was intending when I posed the question.
I have a PDF that is created using a piece of CADD software that is the Title Sheet to a set of plans. Right now, all of the information on that title sheet is filled out using the CADD software. Project title, contract number, milepoint limits, table of contents, Federal Aid number, an image showing a general location of the project on a map, etc... Once that PDF is created, we want to be able to distribute it to up to 12 people for Digital Signatures. Not knowing the exact difference between a Certifying Signature and Approval Signature, we want to be able to use the Sign & Certify process, NOT the Custom Stamp.
I was hoping there would not be a need for the designers/engineers to have to manually add the Date and Signature fields for each of the 12 blocks for every title sheet they create (some might have to create up to 8 or 10 different title sheets with differing information a month).
The other route we could go would be a drastic change to how we create the Title Sheets. We would almost have to turn it into a form and enter the information on the title sheet in Adobe as opposed to using our CADD program to complete the information. The "background" image would be the title sheet with a whole bunch of fields that need to be filled out, along with image fields and signature fields that automatically fill specific date fields, similar to another post I was reading earlier today. That change in business practice would be hard to force these people to accept, I'm afraid.
So, what I was hoping for was to use the Sign & Certify > Place Signature process and have them place a custom signature file using their Digital ID and have that file contain a dynamic date field that is automatically populated similar to how a dynamic stamp in the Commenting tools work.
It doesn't seem like that is possible though, unfortunately.
By the way, I really appreciate the time you are taking to help me through this.

Digital Signature and Annotation Appearance Stream

Hello,
I've noticed that adding an annotation on a pdf without specifying an appearance stream ( AP dictionary ) for that annotation, and then signing the document,
will cause Acrobat to report that the document is Signed and all signatures are valid, but with Annotations Modified message under the signed revision in the signature panel.
So is that behavior by acrobat, while appearance stream entry is optional in annotations ?

Hello lrosenth,
I was eble to add an ink annotation with an appearance stream, and then signing the document with digital signature goes fine with no problems
( No "Annotations Modified" ) message appearing in the signature panel, but adding a freetext annotation with an appearance stream and then signing, is causing acrobat to show "At least one signature requires validating" message in the signature bar, and by validating the signature manually by pressing "Validate All" in the signature panel, the original problem appears again stating "Annotations Modified". So is freetext annotations should be considered in a different way than other annotation types ?
Thank you.

Appearance of Digital Signature in Adobe Acrobat 8

I am creating a digital Signature in Adobe Acrobat 8 and am having difficulty getting all the information to appear clearly. The first example below shows, the signature, name and date. I would also like to include the name of the Company. The only way I have been able to do that is by clicking the “distinguished name” box in the appearance section of the digital signatures. An example of this signature is also shown below. However, additional information such as the name (again), email and country are also being listed. There are numerous abbreviations and equal signs now appearing as well. Ideally I would like the signature to look like the first one with the company name appearing just above the person’s name. Can anyone help me do this?
Thank you!

Hi,
For the first problem (word wrap). The problem you are encountering is if "Maryanne Doe" is too long to fit in half of the signature field, the text wraps to the next line. The signature appearance that is written into the signature field consists of two halves. The left half contains the graphic properties and the right half contains the text properties.
You need to lengthen the width of the area where the graphics portion of the signature is contained. You can do this one of two way. Either lengthen the physical dimensions of the signature field before you sign. Or, you could create a custom signature appearance where you turn off all of the text properties, which has the effect of giving the whole signature fields over to the graphics portion. To play with custom signature appearances:
Select the Edit > Preferences (Win) or the Acrobat > Preferences (Mac) menu item
Select Security from the Categories list box
Click the New button in the Appearance group box
If you select the No Graphic radio button you give all of the space to the text portion. If you deselect all of the checkboxes in the Configure Text area, you give all of the space to the graphics portion.
While you are in the Preferences dialog, select Identity from the Categories list box. Go ahead and fill in all of the editable fields. This is where the data is procured during the creation of a self-signed digital ID. I think that will fix the second issue you raised.
Steve

Dynamic PDFs with Digital Signatures?

LCD 9 – Acrobat 9 standard/Pro
Looking for the definitive answer on this one. My PDFs have a need to be both dynamic and use multiple digital signatures. For now I design as static with multi dig sig and deal with break-out forms and such via a portfolio.
It would be nice if I could design a form that has both flowable sections (think dynamically added rows in a table using script, or even simple textfields that expand as you fill them up via flowed content areas) and these digital signatures. As soon as I make that PDF dynamic the signatures are immediately invalidated as the form shows changes.
Is there any workaround to this? Some of the process I have to design for need flowed fields, and all require digital signatures on the form. We use Entrust as the security for dig sig - and that will not change so cannot use any inherent Adobe signature security methods.
Thanks,
Jim

Hi Jim,
Yes, the file was created for Acrobat 10, but other than the warning you see on file open it will behave the same way in 9.x as it does in 10. However that said, you don't want to look at the file in Acrobat because you can't edit it or see the layout there. You need to view the file in LiveCycle Designer which gets installed along with Acrobat, and when you do get the file open in Designer it won't complain. Once you get the file open in Acrobat select the Forms > Edit Form in Designer menu item and that's where you can see the properties used to get page flow to work.
I've attached another copy without any data that won't complain when you open it in Acrobat. It is for all intents and purposes the same file, the only reason there are fewer pages is due to the lack of data in the table.
Steve

Dynamic digital signature appearance

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