Add Signatures into PDF For Free

Drag and drop document here to upload
Up to 100 MB for PDF and up to 25 MB for DOC, DOCX, RTF, PPT, PPTX, JPEG, PNG, or TXT
Based on 12500+ reviews
Last updated on Dec 27, 2025

What is Add Signature to PDF?

‘Add Signature to PDF’ is a seamless solution offered by pdfFiller that lets you electronically sign documents with ease. It’s a fast, secure, and efficient way to add legally - binding signatures to any PDF file, eliminating the need for printing or scanning.

Why adding signatures to PDFs is essential for document validation

Signatures are a critical part of verifying the authenticity and intent behind a document. By adding signatures to PDFs, you ensure the document is legally recognized and secure, making it ideal for contracts, agreements, and other important paperwork. Digital signatures streamline this process, offering the same level of validation without the hassle of physical documentation.

How to add signatures to PDFs easily

With pdfFiller, you can sign PDF documents quickly and effortlessly. Simply upload the document, choose the “Sign” tool, and sign using your preferred method—draw your signature, type it, or upload an image of your handwritten signature. pdfFiller ensures the process is intuitive and hassle - free, saving you time while ensuring accuracy and security.

Real - life uses for adding signatures to PDFs

Signing PDFs with pdfFiller is a powerful functionality that brings convenience, speed, and security to document management. Whether for personal, professional, legal, or educational use, this feature adapts to your needs, helping you handle important paperwork effortlessly and efficiently.

Closing business deals faster

With digital signatures, entrepreneurs, small business owners, and professionals can speed up contract signings, service agreements, and NDAs. This eliminates delays caused by physical meetings or mail, ensuring deals are finalized without unnecessary downtime.

Simplifying team approvals

For remote or hybrid teams, signing PDF documents online ensures quick approvals for budgets, project proposals, or internal policies. This feature keeps teams productive and aligned, even when spread across different locations.

Ensuring legal authorization

Legal practitioners and administrative teams can use this feature to authorize documents such as affidavits, contracts, or compliance forms. Its secure and legally binding nature makes it an ideal option for highly regulated industries.

Streamlining healthcare and education processes

Healthcare providers can sign consent forms or prescriptions digitally, while educators can quickly authorize forms like enrollment documents or agreements. This adds speed and accuracy to workflows, benefiting both staff and those they serve.

Collect legally binding electronic signatures the easy way

Edit, sign, send — done!

Quickly edit documents online, add signatures, and send for signing — all from one easy-to-use solution you can access from anywhere.
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Customize your workflow

Send documents to a single recipient or an entire group. Assign roles, set a signing order, and schedule reminders for a smooth, error-free process.
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Collect data efficiently

Create fillable PDF forms and let your recipients complete them from any device. Publish forms online or share them via a direct link to capture data and signatures without chasing people down.
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Track and store documents

Get real-time visibility into the signing process and keep track of all your documents in one place. Your files are stored in secure cloud storage, so you can access them anytime and anywhere.
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Share & collaborate

Need more eyes on a document before sending? Share it with the team to edit or highlight content, redact sensitive information, leave feedback, and exchange comments.
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Maintain security & compliance

Collect signatures in compliance with ESIGN, UETA, eIDAS, and GDPR. Protect your documents with a password, request additional signer authentication, set document expiration dates, and more.
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How to send a document for signature?

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Upload

Upload your document to pdfFiller and click E-sign.
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Add recipients

Choose who needs to sign and add as many recipients as you need.
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Prepare

Drag and drop fillable fields on your document and assign them to specific recipients.
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Finalize & send

Review your recipients, customize the signing order, set reminders, and hit Send.
Upload your document

Who needs this?

Explore how professionals use pdfFiller to get documents signed.
Sales
Human Resources
Legal
Real Estate
Education
Finance
Sales

Sales

Quickly edit contracts, add eSignatures, and send them to clients or vendors for signing without leaving pdfFiller. Track who has signed and who still needs to take action, keeping your business running smoothly.
  • Service agreements
  • Vendor contracts
  • Non-disclosure agreements (NDAs)
  • Purchase orders
Human resources

Human Resources

Create fillable PDF forms for offer letters, employment contracts, and onboarding documents. Let new hires complete and sign them from any device, making the onboarding process accessible and hassle-free for everyone.
  • Offer letters
  • Employment contracts
  • Non-compete agreements
  • Benefits enrollment forms
Real estate

Real Estate

Edit property agreements, add signature fields, and send them to buyers, sellers, or agents for signing. Send documents to a single recipient or an entire group, and track the signing process in real time to ensure timely closings.
  • Purchase agreements
  • Lease contracts
  • Property disclosure forms
  • Inspection reports
Education

Education

Create fillable forms for permission slips, enrollment documents, or policy acknowledgments. Allow parents, students, or staff to complete and sign them from any device. Keep track of all signed documents in one secure place for easy access and compliance.
  • Permission slips
  • Enrollment forms
  • Scholarship applications
  • Teacher contracts
Finance

Finance

Edit financial agreements, add eSignatures, and send them to clients or stakeholders for signing. Allow clients to complete and sign online digital forms from anywhere to simplify loan applications, account openings, and authorizations.
  • Loan agreements
  • Investment contracts
  • Financial statements
  • Payment authorizations

Why sign documents with pdfFiller?

GDPR
AICPA SOC 2
PCI
HIPAA
CCPA
FDA

Ease of use

Users appreciate pdfFiller's intuitive interface and the ability to manage documents from anywhere without clunky desktop software.

More than eSignature

pdfFiller is a complete solution that offers PDF editing, eSignature, file storage, and collaboration under one roof.

For individuals and teams

Whether you work solo or with a team, pdfFiller equips you with all the tools to handle your daily document tasks.

Collect signatures with a trusted, all‑in‑one solution

Try easy-to-use tools for all your document management needs.
Upload your document

pdfFiller scores top ratings on review platforms

Users Most Likely To Recommend - Summer 2025
Grid Leader in Small-Business - Summer 2025
High Performer - Summer 2025
Regional Leader - Summer 2025
What do you like best?
Very easy to use. There has never been an update or change that I couldn't do.
What do you dislike?
Drawing straight lines could be easier. I can't seem to line them up with other lines in the page.
What problems are you solving with the product? What benefits have you realized?
Makes doing my job easier,
Diane Skullr
Very easy to use Very easy to download a document, fill in the required fields and electronically sign. When I had a small issue customer service solved it quickly.
Mark Lamb
Refund amount was authorized on a… Refund amount was authorized on a timely matter without hassle. I was not easily able to unsubscribe when accessing my account directly through my google account.
Hector
i liked this edit word and i aprecited,i do best sample for international student scholarship i20 form,student not needed to pay to much money agent. I did good sample sevis fee payment recipet,how they receved reciept paper for embassy good thank you
worku
If I had the option to put 100 stars, I would. This product is fantastic. There are small issues with reformatting, but I think the user can get over that.
Darcé
Great Experience and Efficient PDF's I only needed to use it for a few items I needed to update. The experience was easy and great. I enjoyed using it for what I needed in the moment. Once I cancelled my subscription they handled it promptly and professionally. If I am ever in need of PDF services again, I will definitely consider their services and so should you!!! THANKS PDF FILLER!
Oneofakind Tiffany
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Watch pdfFiller eSignatures in action

Check out a quick video tutorial that shows how to create and place your signature or send a document for signing.

FAQs

If you can't find what you're looking for, please contact us anytime!
You can add multiple signatures to a PDF using the pdfFiller eSignature tools. This is particularly useful for documents requiring signatures from multiple people, such as contracts or agreements. You can easily place each signature in the appropriate field and set up a signing order, ensuring a professional and accurate final document.
Yes, pdfFiller makes it easy to add digital signatures for multiple individuals on the same PDF document. Whether it's a contract, agreement, or approval form, you can place signature fields for all parties involved. Each person can sign remotely, streamlining collaboration and saving time typically spent coordinating in-person meetings.
With pdfFiller’s mobile app, signing PDF forms on the go has never been easier. Simply download the app, log in, and start signing. You can also access pdfFiller directly through your mobile browser if you prefer not to use an app. With seamless mobile access, you can stay productive wherever you are, no desk required.
pdfFiller provides several options for personalizing your electronic signature. You can type your name in a preferred style, draw your signature using a mouse or touchscreen, or upload an image of your handwritten signature. These options allow you to create a professional, personalized look that suits any document type.
Adding an electronic signature to a PDF with pdfFiller is highly secure. The platform protects your documents with advanced encryption, two-factor authentication, and compliance with global security standards. This ensures your data and signatures are handled confidentially and protected from unauthorized access.

Collect signatures with a trusted, all‑in‑one solution

Try easy-to-use tools for all your document management needs.
Upload your document