Add Formula Field Button to DOCX for E-sign without MS Word for Free

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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 Sep 27, 2025

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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.
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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

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

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

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

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I used PDF filler to complete a URLA form because the one I was sent by a loan officer was so small I couldn't fit the information in it. PDFfiller made it very easy for me to see and complete the form. I feel that this service would be good for a small business owner because there are many documents available as well as documents that explain the documents you are completing.
S. Searles
What do you like best?
I am able to fill out forms that I would otherwise have to handfill
What do you dislike?
Sometimes, it does not recognize cells for letters
Recommendations to others considering the product:
Use it to fill forms as an alternative to handwriting
What problems are you solving with the product? What benefits have you realized?
I fill out all the tax returns I do using this tool.
User in Information Services
It is not very difficult to navigate, but I do have issues with finding some of the documents I need. Plus, I feel that the pricing of basic level is too much. I am a person with a limited income and can not afford much. I need this program to help with my taxes and a few other documents, but I can not afford to pay an entire years worth!
Elizabeth S W
Wish it was more affordable Works great and seems to be the only app that put everything in the proper format for editing. My only complaint is that it isn't more affordable, especially for first year subscriptions I feel like there should be a discount so that you can truly decide if spending that much at once is worth it to you and your business needs.
sarahrvillarreal
Fast and great service Fast and great service. Program was great but we didn't really have use for it. We forgot to cancel after our trial and was charged. Totally our fault. I contacted them and they handled this immediately. Talk about fast service. 😊 Thanks again.
Lydia Velez
It's essential for digital nomads. Since my base is in the US. I rely on these solutions to continue operations in the US from abroad. I would integrate payment systems, especially with the banking networks to be able to send money orders or checks physically. And I would suggest connecting with virtual offices to be able to interact with clients in a virtual office setting. I'm thinking a virtual secretary solution... just some thoughts to improve. Abe
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FAQs

If you can't find what you're looking for, please contact us anytime!
To insert formula fields: Position the cursor, click on the Insert tab, click. on Quick Parts. and select Field. Click on the drop arrow for Categories and. select Equations and Formulas. Click on = (Formula) and then click on [Field.
How do I do calculations in a PDF? Upload the document to your pdfFiller account and open it in the Editor. Click on the Add Fillable Fields tab on the right. Select Formula. Open the Formula Builder to calculate a value. Click Save. Click Done.

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

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