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What is a wet signature? Meaning, definition, and when you need one.
Learn how digital technology can help you obtain physical signatures.
A wet signature is a traditional handwritten signature made with ink on a physical document. Even with electronic signatures becoming more common, many organizations, industries, and legal processes still require a physical mark on paper. A wet signature is any signature affixed to a hard copy with a pen or other writing device, and some signers prefer handwritten signatures for personal, legal, or compliance reasons. In some cases, a notary must be present when the signature is made.
This guide explains the meaning of a wet signature, how to obtain one efficiently, how it compares to electronic and digital signatures, and when wet signatures are still legally required.
Wet signature meaning
A wet signature is a physical signature created using wet ink. It is a handwritten mark made directly on a paper document. Some governments and private businesses still require parties to imprint a physical mark on a signed document, and certain processes require the signer to be physically present.
Wet signatures may also be required when identity verification, notarization, or physical acknowledgment is necessary.
How to obtain a wet signature quickly.
Wet signatures are usually more challenging than electronic signatures, but e-sign software like Adobe Acrobat can speed up the process. Acrobat supports written and electronic signature options and has them built into the workflow.
Follow five easy steps to get a wet ink signature into a primarily digital document flow:
- Send the signing party a downloadable PDF or Word document with the field requiring their wet signature.
- The signer downloads and prints the document.
- The signer physically signs the document.
- The signer scans the document and wet signature back into digital form, which can be completed with a free scanner app on a smartphone device.
- The signer uploads the file and sends it back to the requester.
Wet signature vs. electronic signature vs. digital signature
Electronic signatures have been legally recognized in the United States since the ESIGN Act of 2000, and many countries now accept them for binding agreements. Although the terms are often used interchangeably, each type of signature has a distinct meaning.
Wet Signature
- A physical signature made with wet ink on paper.
Electronic Signature
- Any electronic process that indicates acceptance of an agreement or record.
- Includes typed signatures, drawn signatures, uploaded signatures, or clicking “I agree.”
Digital Signature
- A secure type of electronic signature that uses a digital certificate and public key infrastructure (PKI).
- Cryptographically bound to the document for enhanced security.
When do you need a wet signature?
The US and numerous other countries recognize electronic, digital, and traditional wet signatures. Electronic signature legislation continues to make e-signatures binding, including the Uniform Electronic Transactions Act (UETA) in the US, the Electronic Identification and Trust Services Regulation (eIDAS) in the European Union, the Personal Information Protection and Electronic Documents Act in Canada, the Electronic Transactions Act in Australia, and the Electronic Communications Act in the United Kingdom.
However, many jurisdictions still require a wet signature.
Common cases requiring wet signatures:
- Notarized documents
- Wills and trusts
- Family law documents
- Adoption and divorce proceedings
- Certain banking and financial documents
- Government forms
- Tax documents in some countries
Business documents
Most business documents accept electronic signatures. Many organizations now use e‑signatures as their standard because they save time, reduce costs, and integrate easily with digital workflows.
Industries that still require wet signatures
Many industries have transitioned to electronic signatures, but some still require physical signatures for identity verification or legal compliance.
Industries where wet signatures may still be required:
- Real estate
- Government agencies
- Legal services
- Financial services
- Certain healthcare processes
- Notarized transactions
Other industries, such as healthcare and banking, increasingly accept electronic signatures for many forms, allowing customers to verify and submit documents online.
How to put your real signature in a PDF?
Sometimes you need your actual handwritten signature, not just a typed or drawn version. You can capture your real signature once and reuse it digitally, whether you want the look of true handwriting, need to upload a scanned signature, or want to sign a PDF without printing. This makes it easy to turn a wet signature into a reusable electronic one and apply it to any document in seconds.
Ways to add your real signature:
- Scan a handwritten signature and upload it
- Take a photo of your signature with your phone
- Use a stylus or finger to draw your signature
- Use a signature creation tool to recreate your handwriting
Once uploaded, your signature can be reused across documents.
Case studies: How companies moved from wet signatures to digital signatures.
Using wet signatures can take time, effort, and money. Learn how two international organizations sped up their workflow with digital signatures, saving valuable time for all parties involved.
Police ICT16
Police in the United Kingdom used to meet with witnesses in person to have them sign a hard copy of their statements. Then, Adobe ICT partnered with Police ICT, a company that supports UK law enforcement, to streamline and digitize the process. Police could communicate with witnesses via phone and obtain electronic signatures verifying their statements using electronic documents, reserving in-person meetings for severe crimes. Shifting toward a greater use of electronic signatures saved approximately 25,000 work hours per year.
CXC
CXC is an Australian workforce management company. Several years ago, the company expanded rapidly and needed to onboard over 2,000 contractors as quickly as possible. By adding electronic signatures to their workflow, CXC saved 28 hours per month in contract management time, improved business processes, and oversaw what could have been a painful expansion into a smooth transition.
Wet signature FAQs.
You can upload your signature to an online document in 5 easy steps:
- Write your signature on a blank sheet of paper.
- Scan it or take a clear photo.
- Upload the image into your PDF signing tool.
- Adjust size and placement.
- Save it for future use.