Fill and Sign

Digitally sign contracts, NDAs, and other documents in the security of Datasite. Add electronic signatures to PDFs without the risk and inconvenience of using third-party apps.

Try now

Sign and annotate documents securely in Datasite

Sign faster

Sign or initial documents in just a few clicks.

Make it yours

Type, draw, or upload your customized signature.

Stay secure

Automatically save documents in Datasite’s protected platform.

Frequently asked questions

How do I sign a document?

Upload your PDF. Then, create a signature by drawing, typing or uploading one. Position it on the document. 

How many signatures can I add?

You can add as many signatures as you’d like. 

How do I make my signature?

You can type your signature with a variety of convenient brushscript fonts, draw it with a mouse or trackpad, or upload a scanned signature.

How do I customize my signature?

Perfect your signature by changing its color, size, position, and rotation on the page.

What other annotations can I make?

In addition to your signature, you can add the date, your name, your company name, and a checkbox. You can also adjust the color, font, size, rotation, and position of the annotations. 

Does Datasite keep a copy of the files I upload?

All original and signed files are stored in your My Documents area. No other users can access them, and you can permanently delete them anytime.

How secure are my documents?

At Datasite, security is our top priority. We adopt the latest cloud security best practices. The Datasite platform:

  • Stores and maintains user information, application data, and logs separately
  • Treats passwords with cryptographic hash algorithms
  • Encrypts at-rest files with AES 256-bit encryption and regularly creates backups
  • Protects in-transit data via Transport Layer Security (TLS) 1.2 protocol
  • Captures, analyzes, and actions events in real time
  • Accesses files only upon request, supported by document access review and change management processes
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