Virtual signatures allow fast document signing online, sharing important contracts and documentation with clients and freelancers, requesting a signature and more exciting things you can do!

With a powerful API you can even sign multiple contracts and invoices from different companies, make it automatic as well as integrate with other applications.

What is a Digital Signature?

It is a mathematical scheme based on cryptographic protocols. It is basically used to verify whether digital documents are authentic or not. In most cases, you will need digital signatures to sign documents electronically. You can do that in the countries where electronic signatures are legal, for example, European countries, the USA, Mexico, Brazil, Indonesia, Uruguay, Turkey, and many more countries.

Types of Digital Signatures

Generally speaking, there are three types of these signatures, which are simple, basic, and advanced digital signatures. However, not all countries utilize or accept the use of all the different types of signatures to prevent forgery and to facilitate document validation.

Simple Digital Signatures

This type of signature is the same as the class 1 digital signature. The lack of any encryption on this signature makes it the simplest form of a digital signature. The generation of this signature is easy and straightforward. All you need to do is scan and affix a physical signature on to an electronic document. Class 1 signatures mostly serve as signatures that appear at the end of emails.

In most cases, the terms and conditions of apps that you must accept while downloading an app are typical examples of simple digital signatures. The absence of any security layer or identification makes this signature simple to alter and possess little or no legal value. The term electronic signature can also refer to simple or class 1 signature.

Standard Digital Signatures

Standard or basic digital signatures are the same as class 2 digital signatures. This signature is similar to class 1 digital signature, although it has a data logger embedded in the document. The primary function of the logger is to track and record all alterations performed on the document after signing and during transmission. The standard signature does not contain the personal details of the document’s creator. Therefore, the receiver may not be able to verify the identity of the sender.

The encryption of a standard digital signature requires the use of the standard asymmetric cryptography technique. It makes the validation of such kinds of signatures easy, and it makes documents affixed with basic signatures legally binding.

Advanced Digital Signatures

The advanced digital signature is the same as the class 3 digital signature. This type of digital signature is the safest and the most secure form of signature. Two tools must be available to create this type of signature, which are the asymmetric cryptography encryption technique and the public key. Advanced digital signatures also have a logger embedded, which tracks and records changes made to documents.

In most countries, advanced digital signatures carry similar legal status just like their physical counterparts. In some particular cases, digital signatures providers impose a two-layer authentication process while signing a document. Authentication maybe through mobile phone text messages, emails, or phone calls. There are also apps, which allow authentication through barcode, fingerprint, or face identification. The authentication process helps to verify the identity of the sender when the document is signed. It also enables verification by the receiver or a third party.

It is easy to see that the advanced digital signature is the most secure form of digital signature for your business transactions. You should always opt for this signature when transmitting highly confidential correspondences or business documents. In most cases, countries that allow the use of digital signatures for transactions, tax purposes, and government-related activities only accept advanced digital signatures. PDF.co offers both standard and advanced digital signature to cater to any of your needs.

How It Works

Digital signatures are based on asymmetric cryptography. They are similar to handwritten signatures even if created electronically. It is more difficult to create a false digital signature as many algorithms are used to check its validity. If the electronic signature is properly made, it can testify that the sender really signed it and the document was not altered on the way.

Draw a Signature with PDF.co

Here, at PDF.co, we offer plenty of tools that help work with documents, for example, e-sign them, fill in forms, create invoices.

Draw a Signature tool that helps to create a unique and properly made picture of your handwritten signature. You can use it later on any document, contract, or agreement.

STEP 1

From the main menu, go to Products -> Draw signature and save to image.

Draw Signature Online Free

STEP 2

Now you are inside the drawing tool interface. You can start creating your signature online. You can use your mouse, touchpad on your laptop or any specific device you have. It might take time to create a neat image. Don’t hesitate to practice as much as you need. You can clear the picture at any moment.

Online Signature Drawing

Moreover, you are able to create e-signatures in 3 colors: black, blue, and red. In order to try them, just click on the selected color and start drawing a new signature. You can’t change the color of the signature already made.

Draw Signatures Online

STEP 3

When you are done with your signature, just hit the ‘Save’ button. You will be asked to Sign up or Download the image (if you are already signed up).

Enjoy the result on your computer and use it any time when you need to sign a document.

Type a Signature with PDF.co

There’s another tool at PDF.co, you may use to create your original signatures. It allows to type them directly using your keyboard.

STEP 1

Go to Products -> Type your signature and save to image.

Type anything you want to be on your signature and adjust the color if you like.

Make Signature Online

In this tool, you can change the color and the font of the signature already written by clicking ‘Change font’ button or picking the appropriate color (black, red or blue).

Type Signature Online

By selecting + or – you enable the font to be bigger or smaller accordingly. It can be big enough until it stops fitting the little screen.

Create Signature Online

Clear everything if you don’t like it, or Save your signature to use it later on contracts and agreements.

Don’t hesitate to use the tool anytime you like, and let us know if you need help.

Recommend PDF.co to your friend and get +100 credits for further usage.

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  2. How to convert JPG to PDF;
  3. How to use digital signatures;
  4. How to convert PDF to CSV;
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See these videos to investigate the tool features: