Digital TV, digital entertainment, such terms must be familiar to us, and in this digital era, digital signatures are also common. In many documents and documents, we are required to add a digital signature. So what exactly is a digital signature?And how do you digitally sign a PDF document?
What is a digital signature?
A digital signature is a kind of signature on the screen on the network compared to a paper signature, which can not only show the identity of the signer, but also encrypt and protect the document to a certain extent. Like a regular paper signature, a digital signature includes basic information such as name and date and time. It also has the role of authentication, digital integrity, etc.
How do I add a digital signature to a PDF file?
It's not very difficult to add a digital signature to a PDF file, we just need a PDF editor, and many PDF editors come with a digital signature feature. Next, I will use the updf software in my computer to give you a brief introduction.
UPDF is a very good PDF editor, from daily format conversion, document modification, to encrypted files, batch editing and other functions. Basically, my daily PDF document editing software is done.
To add a digital signature to a PDF document using a UPDF
Step 1:Open the PDF document with a UPDF that needs to be digitally signed.
Step 2:Click on the leftPrepare the formFunction.
Step 3:Find aboveDigital signaturesAfter clicking, the digital signature function will turn purple after being selected, and then we can click the mouse and drag it in the appropriate position of the document to complete the preliminary creation of the digital signature.
Step 4:Double-click on the area of the digital signature block you just created to set the font, color, action and name of the signature. In this case, you need to set the desired color and font first, and you can't modify it after you create it.
Step 5:Click on the preview option in the upper right corner, and when you click on it, the digital signature will turn blank.
Step 6:Left-click the signature area with the mouse, it will directly jump out of the digital identity authentication page, the general initial screen is blank to be authenticated, click the create function selected in the upper box, you can create a digital identity, and the following is the setting of the digital identity style.
In the creation of the digital identity, we must enter the name and email address, and if there is a department or organization name that needs to be filled, we can also fill it in.
In the appearance settings, we can adjust the layout of the digital identity, including the content covered by the digital identity authentication, or make simple changes. After the last two items are set, click the signature button to directly save the file with the digital signature.
Finally, open the saved document, turn off the preview mode, you can see the completed digital signature, click on it, you can verify the digital signature, and view the properties of the digital signature.
Summary
How do I add a digital signature to a PDF file?It's that simple to use updf, follow the steps above to complete it, hurry up and try it!