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Top 3 Ways to Sign PDF with Speed: Effortless E-Signing

A signature on PDF documents indicates approval or verification of any particular organization or an individual. Through electronic signatures, you can opt for various styles, colors, and fonts for their signatures and can optimize their workflow. Through this article, you can learn how to sign PDFs by using powerful PDF tools. Moreover, you can discover both online and offline PDF tools to add signatures to PDF documents.

Part 1: How to Sign PDF with UPDF

UPDF has introduced itself as an advanced PDF tool with a delightful interface. It offers two types of signature: Digital Signature and Handwritten Signature. We will introduce both instructions below. First of all, download it and begin to sign your PDF.

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Hence, it works flawlessly as a PDF tool for creating signatures for your PDF files comfortably. Now let's see how to add a signature to PDF with UPDF:

How Do You Sign a PDF with a Digital Signature?

Step 1: Enter the Prepare Form Section

Follow the same steps for opening PDF in UPDF and hit the "Prepare Form" icon on the left panel.

sign pdf prepare form

Step 2: Add Your Digital Signature Field

Click on the "Digital Signature" icon on the top toolbar. Now, navigate your cursor and click on the place where you want to add a digital signature field. You can adjust the size of this field and double-click on it to make further adjustments.

add digital signature field

Step 3: Sign the PDF with Your Digital ID

Here is how you can sign your PDF digitally with UPDF:

  • On the top right corner of the interface, click the "Preview" icon and enter the Preview mode.
  • Now click on your added signature field to add your digital signature to it.
  • You can create your digital ID in the Sign Window by hitting the Create option. Follow up with adding more information, as prompted. You can save your created ID to a file for future use. Alternatively, you can import a digital ID from your device. You will need to enter a password to authenticate your identity.
  • Once done, spot and hit the "Sign" button to terminate the procedure of adding a digital signature to your PDF file.
sign your PDF digitally

How Do You Sign a PDF with a Handwritten Signature?

By accessing its annotation feature, you can add signatures to PDF files professionally. It gives three options to add signatures conveniently, such as you can use your mouse or trackpad to draw signatures accordingly. You can also control the thickness of your mouse cursor.

Moreover, you can type the signature by selecting the font color from the given options. After creating your signature in a captivating way, you can apply it to any part of your PDF document.

Step 1: Enter Comment Mode

Open the PDF by clicking "Open File" in the main interface, and then tap the "Comment" icon on the left panel.

Step 2: Create the Signature

After entering the comment mode, click the "Signature" on the top toolbar above, and then click "Create Signature" to create a signature in PDF. Signatures can be added via keyboard, mouse, and trackpad. UPDF also allows you to choose the thickness and color of the signature pen.

sign pdf and create signature

Step 3: How do I Sign a PDF Document

Now click on the signature you created, move the mouse to the position you need to add, and one-click to add the signature to the PDF. After adding a signature, you can also adjust the size of the signature.

Handwritten Signature vs. Digital Signature: Which One Should I Choose?

It's a pretty controversial discussion. Some people consider digital signatures more secure than wet ink, whereas others find handwritten signatures faster and more accurate. But to be honest, embracing digitalization is the key to success, productivity, and efficiency in this digitalized era.

Digital signatures offer an array of advantages. Digital IDs do not expire, so digital signatures are ideal for signing long-term transactions, agreements, and legal documents. However, you should opt for a reliable platform for adding signatures. We suggest sticking with UPDF, as it's, so far, the best option out there in the market with the most comprehensive and innovative digital signature features. Download it now and use the feature to experience its ease and security.

Video Tutorial on How to Sign PDF

Other Key Features of UPDF

  • Add Colorful Stamps: UPDF can annotate PDF files including the feature of Stamps through which users can add colorful and interesting stamps to their PDF files.
  • Highlight Lines: By accessing its annotating feature, you can underline, strike out, or use a highlighter to make important lines bold out.
  • Add Text Boxes: By adding text boxes through UPDF, you can write headings or extra information in an appealing way on your PDF files.
  • Replace PDF Pages: It allows the user to organize PDF pages by replacing them if they are incorrect through the "Replace" feature.

After introducing the instructions for signing a PDF document, you may want to download and install UPDF now. Simply click the button below and you can get it easily.

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Part 2: How to Sign PDF with Adobe Acrobat

Adobe Acrobat is one of the famous tools for editing and creating PDF documents flawlessly. It gives tons of options to add signatures to PDFs. You can either add your initials as your signature or can directly choose the option of "Add Signature." By utilizing both of these options, you can effortlessly sign your PDF files.

Moreover, you can hand draw your signatures to add an artistic factor through this tool. Also, you can type your signature and can modify its style and color easily through the given options. Hence, it's a perfect tool to insert a signature in a PDF creatively. To add a signature to a PDF using Adobe Acrobat, read the following steps:

Step 1: Open the tool Adobe Acrobat and click on the "My Computer" option displayed on the left side. Tap on the "Browse" option to import the PDF file from your computer to add a signature.

Step 2: Now, from the right section, choose the option called "Fill & Sign." Once done, select "Sign Yourself" and tap on "Add Signature."

add signature to PDF with adobe

Step 3: After selecting "Add Signature," you have three options to add a sign. You can draw, type, or can add images as signatures on this tool. Once done, click on the "Apply" button to save your created signature.

sign pdf adobe

Step 4: After saving the signature, you can drag and drop the newly created signature from your mouse's cursor. Apply the signature where you want on the document. You can also increase or decrease the size of the signature preferably. Once done, go to the "File" button and click on "Save" to save all the changes.

Part 3: How to Sign PDF Online with Smallpdf

Do you want to sign PDF online? Smallpdf is an excellent online PDF tool that comes with unique options to modify PDF files. When it comes to signing PDF files, users can select the option of eSign PDF from this tool. You can import your PDF files from your device and cloud storage platforms like Google Drive and Dropbox instantly on this software. It gives three options for the color of the signature, i.e., red, blue, and black.

You can either draw or type the customized signature on this tool comfortably. You can also upload any specific image of the signature from your device to this platform. To use Smallpdf as an online tool, follow the below steps:

Step 1: Open the website of Smallpdf to access its home page. From the given options, select "eSign PDF" quickly. Now click on the "Choose File" button to upload the PDF file on this tool.

sign pdf online

Step 2: After uploading the file, you can either add your initials or can type the signature preferably. After selecting the font style and color, you can adjust its size and place it accordingly. You can also copy it by selecting the "Duplicate" option. Once done, tap on the "Finish and Sign" button to apply it.

online sign pdf

Step 3: After adding the signature, tap on the "Save" button displayed on top and download the PDF file on your computer instantly.

sign pdf online smallpdf

Part 4: FAQs about Signing PDF

1. How Can I Sign a PDF for Free?

There are no free tools to sign PDFs. You can use the UPDF tool as it's a PDF software that enables the user to add a signature to PDF files through its premium features.

2. How do I Sign a PDF with a Handwritten Signature?

To sign a PDF with a handwritten signature, you can use the UPDF tool. You can create a signature with a keyboard, mouse, and trackpad. The handwritten signature can be added to the PDF file through this tool easily.

3. Where Can I Sign a PDF?

PDF form and PDF contract have a special signature location, which generally appears at the end of the document, you can find at the end.

4. Why Can't I Digitally Sign a PDF?

The reason can be that your PDF file has been restricted from editing. To digitally sign this document, you need to change the permissions first to enable signing on the document.

5. Is Adobe Sign Free?

No, Adobe Sign is not a free tool. You can avail of its free trial, but to use this tool constantly while accessing its premium features, you need to buy its subscription plan.

6. Can I Use DocuSign for Free?

Yes, DocuSign can be used free for a specific time to add electronic signatures to PDF files. It offers a 30-day free trial through which user can sign their PDF files free of cost. After 30 days, you have to up to the pro version.


To sign PDF files, you can find numerous tools both for online and offline uses. However, not every available tool offers promising and precise results. Through this article, you can discover some excellent PDF tools to add signatures to PDF documents effortlessly. If you want to access a powerful PDF tool, explore the UPDF platform as it proves to be a complete PDF editor for all professions. Try it now from the button below or upgrade to the Pro version with an exclusive discount.

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