Last updated on
Nov 13, 2025
Quickly edit documents online, add signatures, and send for signing — all from one easy-to-use solution you can access from anywhere.
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.
Try these PDF tools
Edit PDF
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eSign documents from anywhere.
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Request signatures
Send a document for eSignature.
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Share
Instantly send PDFs for review and editing.
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Merge
Combine multiple PDFs into one.
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Rearrange pages in a PDF document.
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Compress
Compress PDFs to reduce their size.
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Convert PDFs into Word, Excel, JPG, or PPT files and vice versa.
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Create from scratch
Start with a blank page.
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Edit Word documents.
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Collect legally binding electronic signatures the easy way
Edit, sign, send — done!
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.
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.
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.
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.
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.
How to send a document for signature?
Upload
Upload your document to pdfFiller and click E-sign.
Add recipients
Choose who needs to sign and add as many recipients as you need.
Prepare
Drag and drop fillable fields on your document and assign them to specific recipients.
Finalize & send
Review your recipients, customize the signing order, set reminders, and hit Send.
Who needs this?
Explore how professionals use pdfFiller to get documents signed.
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.
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Service agreements
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Vendor contracts
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Non-disclosure agreements (NDAs)
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Purchase orders
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.
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Offer letters
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Employment contracts
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Non-compete agreements
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Benefits enrollment forms
Legal
Share legal documents with your team for review or editing before sending them for signing. Speed up agreement negotiations by allowing all parties to share feedback and make quick edits without endless email chains.
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Contracts and agreements
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Power of attorney forms
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Affidavits
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Settlement agreements
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.
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Purchase agreements
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Lease contracts
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Property disclosure forms
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Inspection reports
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.
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Permission slips
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Enrollment forms
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Scholarship applications
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Teacher contracts
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.
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Loan agreements
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Investment contracts
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Financial statements
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Payment authorizations
Why sign documents with pdfFiller?
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.
pdfFiller scores top ratings on review platforms
So far it has been user friendly. I am sure it can do a lot more than what I am doing right now but I am learning more as I go a long. I think a webinar would be very helpful
What do you like best?
I can format any of the documents I need signed into pdffiller. I really like that I can see if someone has opened a document without completing it so I know to follow up with them to see if I can answer questions. I work for a virtual company so this service has been very beneficial to us (and makes me look good for finding it!)
What do you dislike?
I wish I could send more than one document in one email to a particular contact.
What problems are you solving with the product? What benefits have you realized?
I work in HR so I use it for onboarding: signing new contracts, responsibility agreements, etc. It makes it easier to track everyone's progress and create a digital contractor file
I can format any of the documents I need signed into pdffiller. I really like that I can see if someone has opened a document without completing it so I know to follow up with them to see if I can answer questions. I work for a virtual company so this service has been very beneficial to us (and makes me look good for finding it!)
What do you dislike?
I wish I could send more than one document in one email to a particular contact.
What problems are you solving with the product? What benefits have you realized?
I work in HR so I use it for onboarding: signing new contracts, responsibility agreements, etc. It makes it easier to track everyone's progress and create a digital contractor file
What do you like best?
I love that this is a user friendly and cost efficient alternative to PDF editing. I have found that it can do everything (and more) than other services can. It is easy to use and excellent solution for our company
What do you dislike?
The SINGLE thing that I am not a fan of is the fact that encrypted pdfs can be sent but NOT returned encrypted. Sometimes I will send a form to an employee and need the PDF to be encrypted returned back to me and there is no option for that.
What problems are you solving with the product? What benefits have you realized?
The encrypted services have been a burden but the benefits are abundant. It is a great tool and I love that I can send our employees forms to fill out and they can receive/return them from their phones.
I love that this is a user friendly and cost efficient alternative to PDF editing. I have found that it can do everything (and more) than other services can. It is easy to use and excellent solution for our company
What do you dislike?
The SINGLE thing that I am not a fan of is the fact that encrypted pdfs can be sent but NOT returned encrypted. Sometimes I will send a form to an employee and need the PDF to be encrypted returned back to me and there is no option for that.
What problems are you solving with the product? What benefits have you realized?
The encrypted services have been a burden but the benefits are abundant. It is a great tool and I love that I can send our employees forms to fill out and they can receive/return them from their phones.
Best FREE PDF filler
This site is both efficient and extremely useful! Out of all the pdf sites I have ever used, this one is the simplest to navigate and does not constantly try to get me to pay for a subscription. I love its many features and will continue to use it.
PDFfiller has made editing PDFs much easier than the Acrobat PDF. The editing features are laid out in an understandable manner. I would definitely recommend this product.
PDFfiller is very customer focused. When I emailed them they responded immediately and followed up with me to assure my questions were answered. I would highly recommend this company.
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.
What businesses achieve with pdfFiller
Discover how you can benefit too.
Can I add multiple signatures to a single PDF document?
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.
Can multiple people sign the same PDF using pdfFiller?
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.
Can I sign PDFs from my mobile device?
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.
What customization options are available for my eSignature?
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.
How secure is the process of signing a PDF online?
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.
