Thus, the “signed” document can no longer be changed, as this violates the digital signature.
Digital signing is a process in which a digital certificate is taken and attached to a document. This option is used to digitally sign the document. Right clicking above the signing place opens the context menu in which we can select the Sign option. After confirming the desired options, an image will be generated which we can use as a document signature site. First, it allows you to show the date of the signature, and secondly, the signer adds comments to the signature. The dialog window offers two more optional fields. Optionally, the instructions to the signatory can also be added. A dialog window will open where we can enter the name, function and e-mail address of the signer. We can create it by opening the Signature Line menu on the Insert toolbar, and then selecting the Microsoft Office Signature Line option. Signature is not a prerequisite for creating a digital signature, but often those who send or receive documents like to see it as evidence of authenticity. Then, we can assign a signature to a file. To create a digital signature, we need to open a new file first, enter some data and save it. This other way is a prerequisite for their business use, since in this way the owner’s identity is guaranteed. Digital certificates can be created by the user independently, with the help of programs such as Adobe Acrobat Reader, and can also be obtained from an authorized certification body. Starting the file automatically starts the import process by the operating system and placing it into the digital certificate repository. This certificate is stored in the file with the PFX extension.
ADD SIGNATURE IN EXCEL PASSWORD
How does a digital signature come about? Based on the author and password data, a special algorithm creates a file that keeps the encryption key, which is a digital certificate. The text that follows will first be about the digital certificate, then how the user signature is inserted into the Excel, the digital certificate is appended and the digital signature of the document is generated. A valid digital signature is a proof that a message or document has been created by a well-known author, and that she has reached the recipient in the unmodified form. Note that this is the date that the document is signed, not the date that you create the signature box.A digital signature is a way to check the authenticity of a digital message or document. The latter simply adds the date of the signature to the signature box. You have two options with check boxes beside them that read "Allow the signer to add comments in the Sign dialog box" and "Show sign date in signature line." The former allows the signer to type information, such as a purpose for signing, when adding a signature. Select the final options for the signature. You can leave any or all of these blank, but information about the document and the needed signature may be unclear to others viewing the document. You can add the suggested signer's name, the suggested signer's title, the suggested signer's email address and any instructions to the signer. In the menu that appears, click the "Microsoft Office Signature Line."įill in the necessary information in the Signature Setup box that appears.
Click the drop-down arrow below the "Signature Line" option within the "Text" group.
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