How to Delete Digital Signature from PDF Document?

Steven Hodgin | July 20th, 2017 | PDF

Portable Document file format is mainly known for its security purpose. The user can add the password in PDF document and add restrictions so that only authorized person could view it. But not only permission password restricts a user to make any modifications but also, digital signature would make signed PDF file not editable. A digital signature is like a conventional handwritten signature, identifies a person signing a file or document. It is very difficult to forge digital signature as it contains encrypted information which is signed by the signer and easily verified. It contains password and stored in your system as PKCS #12 file format also known as PFX format ( Personal Exchange Information File). In this blog, we will discuss what are the various needs to remove digital signature and the manual solutions to delete digital signature from PDF file.

What are Various Needs to Remove Digital Signature from PDF?

There are various reasons to remove the digital signature from PDF document. Also, there are multiple scenarios demanding to clear digital signature PDF some of them are listed below-

I have just forgotten my digital signature password and I don’t have much technical knowledge. And I need to access my PDF file. Is there any tool which can delete digital signature from PDF?

I am working in one of the Multinational Company and I need to send PDF file to my colleagues but the PDF file contains the digital signature and I have lost its password. Suggest me some utility which can erase signature on PDF?.

Method#1 Manual Solution to Delete Digital Signature from PDF Document

If a user has created the PDF file in Adobe Acrobat and it contains all the required passwords. And if he wants to erase signature on PDF then it can be easily done using Delete option. For this user should have Digital ID for signing. In order to perform deletion user should follow some useful steps which are given below-

  • First, open PDF document
  • Then, go to Tools
  • Click content
  • After that user should select Object
  • Click on signature field
  • And click Delete Key

Method#2 Manual Solution to Erase Digital Signature from PDF Document

First, you need to find out whether the digital signature is applied when PDF file was created, If the signature is applied when a file is created then user has to find the signature field and delete the value.If a digital signature is added after the creation of PDF document, then the user should go back to the previous version of PDF file in order to clear digital signature PDF. If a file contains more than one signature then a user would be able to remove the most recent signature, so that other available signature won’t affect. To remove most recent digital signature you have to revert back to the version before this most recent signature is applied. If a user wishes to erase older signature then he needs to delete all counter signatures that were applied after.

Limitations of Manual Approach

By using manual solution we can remove the digital signature from PDF Adobe. But with this solution user would not be able to delete digital signature from PDF file in batch. Due to this reason, this method fails and there is a need for some alternative solution which could easily remove digital signatures from multiple PDF files.

Reliable Solution to Delete Digital Signature from PDF Document

The manual method fails when we want to remove the digital signature from multiple PDF files. To overcome these drawbacks user is suggested to use another third party tool to erase digital signatures. This tool is capable enough to remove digital signatures in batch. This tool is highly efficient and easy to use.


As we know PDF file format is highly secure and it is considered as the safest place which can store all your information, images and files. In PDF file we can add digital signatures and watermarks also for security reasons. But sometimes we need to remove digital signature from Adobe PDF. So, this blog article completely explains what the different approaches can be used to delete digital signature from PDF document.We have also seen manual solutions but, it fails to work. Therefore, we require third party tool which easily overcome all drawbacks of a manual approach. The utility is so easy and simple to use the even non-technical user can use it.