Digital Sign Reader 4.0 Free Download

A digital signature, like a conventional handwritten signature, identifies the person signing a document. Unlike a handwritten signature, a certificate-based signature is difficult to forge because it contains encrypted information that is unique to the signer. It can be easily verified and informs recipients whether the document was modified after the signer initially signed the document.

Adobe Acrobat Sign supports digital signatures by simply placing the Digital Signature field on a form (either via Text Tags, drag and drop in the Acrobat Sign Authoring environment or authoring in Adobe Acrobat with Acroforms).

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Keep in mind that just because one signer is using a digital signature, that does not mean that any other signers are required to. It's perfectly allowable to have only your internal signers apply digital signatures while external signers use the e-signature field type (or vice versa).

Because digital signatures are certificate-based, signers need to obtain a Digital ID before they can apply their signature. This Digital ID can be obtained from one of several cloud signature providers, or by applying the signature using Adobe Acrobat or Acrobat Reader, using a local Digital ID.

Once the document is open, the signer can read the document and fill in any fields that are needed. All required fields need to be completed before the signer can advance the signature process.

The Digital ID panel disappears, and the PDF updates to show a new blue banner at the top, indicating that the signature is valid. Additionally, a small pop-up window appears, confirming the successful digital signature.

The reason for this is the digital signature process takes place in two parts. The part you do in the web browser (filling in the fields), and the part that you do on your local desktop (applying the digital signature certificate).

until a week ago (or so) I used to digitally sign .pdf documents created with MS Word and exported as .pdf file before sending them by e-mail. I was using two different computers for this (a notebook and a desktop), both of them running Windows 10 (legally activated and regularly updated; both of them with Win 10 version 1511 build No. 10586.318). For the digital signature I used a USB dongle with my digital identity (Nexus Personal digital certificate), with a traceable digital certificate valid until December 31, 2016. Everything was working smooth on both computers - until suddenly something happened.

Now I am unable to digitally sign any .pdf document through Adobe Acrobat Reader DC Version 15.016.20045 using this digital certificate on any of my computers. I tried many different .pdf files created by MS Word, Autodesk Inventor, MS Visio, MS Excel, printed through different pdf printer drivers, pdf files downloaded from the web - non of them can be signed. First I thought the problem is with the certificate since it stopped on both devices - but it works fine with MS Outlook on both of them; I am regularly digitally signing my e-mails with this certificate.

Then, I uninstalled Acrobat, cleaned the registries reinstalled Acrobat - but the result is the same; still no digital signature. The symptoms are the following: when I insert the signature (marking with a rectangle in the pdf document where it shall be inserted, selecting the certificate and ticking the check-box to lock the document after signing it), Acrobat asks me to save the document; I see the certificate inserted in the document on the screen and obviously the document is saved, but at this moment Acrobat always crashes (hangs indefinitely and I have to stop it by the Task Manager). I can open the saved document, but due to the crash it is obviously missing something in the file, since the signatures are shown as invalid - thus the saved document is useless for me.

Interestingly, if I create a certificate within Acrobat Reader, I can still sign any document with that certificate; my problem is that our administration requires that the legally binding documents are signed with this particular certificate issued by authorized certificate providers...

thanks for your prompt response. It is hard to believe that the source of the problem is the certificate: the issue is the same on both of my computers, but as mentioned in my original post the same certificate still works with MS Outlook - I can digitally sign e-mails. Moreover, I can access the dongle containing the certificate through its maintenance software (Nexus Personal) and I can see the trace-ability of the certificate until the root certificate and I can change the PIN for using the certificate. Finally, today I was able to insert a digital signature using this dongle into an MS Word document successfully. If you could provide me your e-mail address I could send you a digitally signed e-mail, so that you can see the certificate itself as a proof that it is OK.

thanks for your suggestion. I tried to rename the folder and then sign a document - unfortunately the result is the same; Acrobat hangs again. Acrobat found my certificate on the USB dongle immediately, but while saving the signed document it crashed as before and the saved document has an invalid certificate.

After several suggestions made by Tariq (thanks for all the efforts) I am still unable to use Adobe Acrobat DC for signing my documents with the external dongle containing the certificate. For now, I uninstalled DC and installed the older Adobe Acrobat Reader Ver. 11 - which works perfectly with my certificate as it used to work before.

I am not sure how much I am loosing from the functionality of the reader by reverting to Ver. 11, but at lest I got back the ability to digitally sign my documents, which is an essential feature for me. Until a completely new version 16 is released, I will not attempt to do any upgrades - after that I will give it a try, but store the installation file of the good old Ver. 11 at hand for downgrade just in case...

I am not aware of a fix. Still using the old 11.0.18 version, which works fine with digital signatures... Occasionally this version also crashes (~once in 100 cases; last time 2-3 months ago and I am signing ~5 documents dily), but after restarting Reader it works fine again. It is a shame Adobe has no intention to fix this issue.

Microsoft Windows [Version 10.0.16299.248] with Adobe Reader DC and Adobe Reader DC Continuous Release | Version 20.18.009.20044 has just started crashing when digital signatures is working when "Digitally Sign" is selected when signing a PDF.

I seem to be having a similar problem on a Mac. When I click on "sign", Acrobat Reader crashes. The "force quit" menu shows that both Acrobat Reader and Microsoft Outlook are "not responding". After killing both of those, I still cannot launch Acrobat. I initiate a restart. and then find that both Microsoft Word and Terminal are also "not responding". After finishing the restart, I leave all Microsoft Office apps unlaunched. I can then use Acrobat Reader to sign a pdf with no problem.

It seems the problem computers do not embed the font into the PDF when signing but the working computers do. No matter how much I search I have not had any luck finding out how to fix this. I have even reinstalled a few times.

An interesting notes: If someone with a working install signs a document first then the people with the non-working installs can sign just fine because at that point the font has already been embedded.

From my testing it looks like adobe reader itself should embed the font when signing. I have looked at the fonts on PDF documents before and after signing and that seems to be the case with most people. Just for some reason on other computers that is not happening.

Many Graduate School documents require signatures, and although you can still choose to print, sign, and scan, you also have the option to digitally sign and email the document to the necessary parties. If you choose to digitally sign a document, you will need to have Adobe Reader installed on your computer.

As an Auburn University student, faculty, or staff, you have access to the pro version of Adobe Reader. The pro version is not necessary in order to sign documents, but it does provide other tools such as the ability to edit and create your own document. If you are a student, you can acquire the software at If you are faculty or staff, please contact your IT provider in regards to obtaining Adobe Reader Pro.

2.) Open the file with Adobe Reader. Then click the signature field that you would like to sign. Notice that in Adobe Reader, digital signature fields have a red arrow in the top left.

9.) Adobe may prompt you to save the document after clicking the sign button. If so, click the Save button. After saving, you should now see your new signature in the Digital Signature field.

I recently upgraded to OS Catalina from Mojave. Using Mojave, I went through the painstaking process outlined on militarycac.com to have my Mac fully functional with my CAC reader, to include digitally signing PDFs using my Common Access Card. After upgrading to Catalina, I have been able to successfully use my CAC to access all sites and services, etc. EXCEPT digitally signing PDFs using my CAC enabled digital signature. This must have something to do with the new CAC abilities in Catalina.

I have been dealing with this issue, and just found a solution on MilitaryCAC.com. Below is what the process they outlined that worked for me. They say to do this on Adobe Reader, but the same instructions worked for me on Acrobat Pro 2017. I already had "Enable CryptoTokenKit framework support" checked, but needed to change "Default Signing Format" to "CAdES-Equivalent." That seemed to do the trick. After I did this, when I tried to sign a PDF with my CAC signature for the first time I had to click through about 10 windows asking for my computer password to enable different permissions. I clicked "always allow" and didn't have to do it the next time I signed. Here you go: e24fc04721