# Sign PDF Online

Add Signature to PDF

Our free online application makes it simple and secure to sign PDF documents directly in your browser. You don’t need to install any software or register an account — everything works online on any device. Whether you want to add a digital certificate, draw your autograph, or insert an image, this tool is the easiest way to sign a PDF online for free.



### Why use this PDF signature tool?



When working with contracts, agreements, invoices, or personal files, it is often necessary to add a reliable and clear signature. With this solution, you can sign PDFs in different ways, providing you with flexibility and convenience. All processing happens in your browser session, so your files remain safe and private.



### Ways to sign in a PDF




  - Digital certificate – Upload your PFX certificate and create a legally valid digital signature PDF in seconds./li>
  Typed text – Simply type your name or any text and place it wherever you need to sign in a PDF.

  - Image signature – Add signature to PDF by uploading an image from your file system, such as a scanned autograph or company stamp.

  - Drawn autograph – Use your mouse, touchpad, or stylus to put a signature on the PDF exactly as you would on paper.




### Key Features




  - 100% free and available online.

  - No registration or captcha — sign PDF online instantly.

  - Supports Windows, macOS, Linux, Android, and iOS.

  - Multiple ways to sign to PDF: certificate, text, image, or drawing.

  - Fast processing with instant preview of your signed PDF file.




### Use Cases




  - Business professionals can sign PDF documents like contracts or invoices quickly without third-party software.

  - Students and teachers can add a signature to PDF forms or assignments for easy validation.

  - Freelancers can sign PDF proposals or agreements online, saving time and effort.

  - Anyone who needs to sign a PDF online for free can rely on this tool for simple and secure results.




### Conclusion



If you are looking for a fast, secure, and reliable way to sign PDF documents, this free online app is the perfect solution. With multiple options, including digital signature, text, image, or hand-drawn autograph, it makes it easy to sign a PDF anytime, anywhere. Try it now and experience the simplest way to add a signature to a PDF in your browser.

Add a signature to a PDF using the [Signature Cloud API](https://products.aspose.cloud/pdf/python/signature/add/).

## Features

- Sign PDF document like Docusign
- Add customized signature to multiple PDF files
- Draw PDF image signature
- Save resultant signed document as PDF, DOC, DOCX, PPTX

## How to add customized signature to PDF file

1. Click inside the file drop area to upload a PDF file or drag & drop a PDF file.

2. From dropdown, please choose one of the options i.e. Drawing, Text or Image.

3. If you opt for Drawing, please draw your signature. You can also choose the drawing color. If you opt for Text, please add your signature text inside the textbox. If you opt for Image, please upload your signature image.

4. Select your "Save as" type or leave it as default.

5. Click "SIGN" button to sign your document.

6. Your document will be signed and you will be able to download or view it. You can also send a link to your signed document to your email address.

7. Note that file will be deleted from our servers after 24 hours and download links will stop working after this time period.

## FAQ

### ❓ How can I add customized signature to PDF document?

First, you need to add a file for sign: drag & drop your PDF file or click inside the white area for choose a file. Then click the "Sign" button. When sign PDF document is completed, you can download your result files.

### ⏱️ How long does it take to customized sign PDF?

This signature app works fast. You can add customized sign to PDF in a few seconds.

### 🛡️ Is it safe to sign PDF using free signature app?

Of course! The download link of result files will be available instantly after sign. We delete uploaded files after 24 hours and the download links will stop working after this time period. No one has access to your files. File signature is absolutely safe.

### 💻 Can I add customized signature to PDF on Mac OS, Android or Linux?

Yes, you can use free signature app on any operating system that has a web browser. Our PDF signature works online and does not require any software installation.