Applying a Digital Signature

jPDFEditor supports signing documents with digital signatures. In order to sign documents, you must first have a digital ID.

Note: It's important to understand that a digital signature is not the same as an electronic signature. An electronic signature is a graphical representation of a signature on pen and paper such as an image or drawing. A digital signature (which may also have a graphical representation) contains a unique encrypted ID to verify its authenticity.

Digital Signatures

A Digital Signature is similar to actually signing a physical document in that it identifies the person signing the document. The difference between a digital and hand written signature is that a digital signature contains encrypted information that is unique to the signer so it cannot be forged. The signer’s certificate or issuing third-party Certificate Authority will need to be trusted by the user receiving the PDF in order for the signature to be considered valid. . Once signed, if the document is modified in any way the signature will no longer be considered valid.

How to Apply a Digital Signature

A digital signature can be applied to an existing signature field or a new signature field can be created to apply a signature to a document

Applying Signature to Existing Field

  1. Click on the signature field
  2. Select the digital signature ID you wish to use
  3. Enter the password for the digital ID
  4. If available, complete any additional digital signature settings that you wish to use
  5. Once complete click on Sign
  6. This will then prompt you to select a location on your computer to save the signed document
  7. Click Save to complete signing and save the document

Applying Signature When No Field Exists

  1. Click on the Sign Document button
  2. When the tool is started, the cursor will become a crosshair to mark the location for the new field on the document.  Drag a rectangle to create the desired signature field size
  3. After the field is created, click on the signature field
  4. This will then prompt you to select a location on your computer to save the signed document
  5. Click Save to complete signing and save the document