• Pricing
  1. Home
  2. How To Create a Fillable PDF for Legal Agreements
How-To

How To Create a Fillable PDF for Legal Agreements

Create a fillable PDF for legal agreements in a few steps online. Add fields, request signatures, and protect sensitive data—fast, free, and secure.

David BeníčekModified: July 10, 2026
You can also read this article in German.

Fillable PDFs make legal work much smoother. You collect information digitally, avoid printing and scanning, and reduce manual data entry errors. With the right workflow, you can turn contracts, NDAs, and intake forms into clean, professional fillable PDFs in minutes.

At Smallpdf, we make creating fillable PDFs for legal agreements a seamless and efficient process.

Below is a quick checklist, then a full step-by-step guide using Smallpdf, plus alternative tools, legal use cases, security details, and FAQs.

Quick Checklist: How To Create a Fillable PDF for Legal Agreements

1
Prepare your draft agreement in Word, Google Docs, or PDF.
2
Open Edit PDF.
3
Upload your contract or form using the drag-and-drop area below (or click to choose a file).
4
Add text fields, checkboxes, and signature areas.
5
Test each field to confirm the flow.
6
Protect the file or request signatures with Sign PDF.
7
Download or share your fillable legal PDF securely.

Try the PDF Converter now, Just upload your file to get started. No sign-ups required.

Add a text box to your PDF
Add a text box to your PDF

A fillable PDF is a PDF with interactive fields that people can complete directly on their device. Fillable PDF can include:

  • Text boxes for names, addresses, and clauses

  • Checkboxes for options and declarations

  • Radio buttons for single-choice answers

  • Dropdown menus for standard selections

  • Date fields for signing dates

  • Signature fields for electronic signatures

For legal agreements, fillable PDFs turn static contracts into structured forms. You collect data in a consistent format and keep the document layout intact for every signer.

How To Create a Fillable PDF With Smallpdf (Step-by-Step)

Step 1: Upload Your Legal Document

Open Edit PDF.

Upload your document by:

  • Drag and drop it into the drag-and-drop area below, or

  • Clicking “Choose Files” to select it from your device, or

  • Importing from Google Drive, Dropbox, or OneDrive

You can start from:

  • a Word contract

  • an Excel-based form

  • an existing PDF agreement

We convert these into an editable PDF canvas.

Step 2: Add Fillable Fields

Once the document loads, use the editing toolbar to place fields where you need input.

Common elements:

  • Add Text Box: for names, addresses, company details, clause-specific fields

  • Add Checkboxes: for consent, options, or clause acceptance

  • Add Radio buttons: for exclusive choices such as plan types

  • Add Dropdowns: for standard values like jurisdictions or roles

Click where you want the field, then drag to adjust its size. Keep labels clear so each signer knows exactly what to enter.

Step 3: Convert From Other Formats (If Needed)

If you are starting from Word, Excel, or PowerPoint, you can use our PDF Converter first. This keeps the structure of your legal document while turning it into a consistent PDF layout, ready for fields.

Step 4: Customize Field Properties

Click any field to adjust:

  • Font size and style

  • Color and border

  • Required or optional status

  • Alignment and position

For legal agreements, mark critical fields (such as signature, initials, and date) as required so they cannot be missed.

Step 5: Test Your Fillable Form

Before you send anything out, fill in the form yourself:

  • Move through the fields with the Tab key.

  • Check that labels and fields match.

  • Confirm that checkboxes and radio buttons behave as expected.

This quick test helps you avoid missing fields or confusing sections for your signers.

Step 6: Export and Share Your Fillable PDF

When everything looks correct:

Add Legally Binding E-Signatures to Your Fillable PDF

For agreements that require signatures, use Sign PDF from Smallpdf. If you request signatures from other parties, you will be redirected to Sign.com.

There you can:

  • Add signature fields for each signer.

  • Request signatures and track progress.

  • Rely on eIDAS-compliant workflows and end-to-end encryption.

Sign your PDF for free
Sign your PDF for free

This is especially useful for:

  • Employment contracts

  • NDAs and confidentiality agreements

  • Consulting and service agreements

  • Rental and lease agreements

Your fillable PDF becomes a complete signing package with clear fields and secure delivery.

Benefits of Using Smallpdf to Create Fillable PDFs

Using Smallpdf provides numerous benefits for creating fillable PDFs:

  • No Software Installation: Create forms directly in your browser without downloading anything.

  • Cross-Platform Compatibility: Your fillable PDFs work on any device or operating system.

  • Time-Saving Automation: Eliminate manual data entry and reduce processing time.

  • Professional Results: Maintain consistent formatting and branding across all your forms.

  • User-Friendly Interface: No steep learning curve—create forms with intuitive drag-and-drop tools.

  • Cloud-Based Accessibility: Access your documents anywhere, from any device.

Keep Your Fillable PDFs Secure

Legal agreements often contain sensitive information. Smallpdf includes several security measures to help you handle these documents carefully:

  • TLS encryption for all file transfers

  • Automatic file deletion from our servers after one hour

  • ISO/IEC 27001-certified infrastructure

  • GDPR-compliant processing

You can also use Protect PDF to:

  • Add a password to your PDF

  • Restrict printing and copying

  • Limit editing of the final agreement

This combination lets you collect data and signatures while controlling how the document can be used after completion.

If you’re exploring free legal document templates, including contracts, agreements, or rental forms, you can get started with examples here: Templates for Contracts & Agreements.

Common fillable PDF use cases include employment applications, rental agreements, survey forms, registration documents, and feedback forms.

Example of templates for contracts and agreements
Example of templates for contracts and agreements

Here are a few errors we’ve come across:

1. Fields are not visible or highlighted

Some viewers hide form field outlines by default. Look for a “Highlight fields” option in your PDF reader or open the file in a modern browser.

2. I cannot type in the fields

The PDF may have been flattened, which turns fields into static content. Reopen the original editable file in Edit PDF, re-add fields, and export again.

3. Signers cannot save their changes

Some older viewers do not support saving filled forms. Ask signers to use a modern browser, or fill and sign directly through the Smallpdf signing flow.

4. The form behaves differently on mobile

Most simple forms work well on mobile. Very complex forms with many fields or advanced logic may work more reliably in desktop browsers.

Building professional, fillable legal PDFs doesn’t have to be complicated. With Smallpdf, you can add fields, place signatures, protect sensitive data, and share your documents securely.

Start your free trial and see how simple, fast, and reliable your document workflows can be.

Want to Create a Fillable PDF for Free?

Create fillable PDF forms for legal agreements using Smallpdf Pro

David Beníček

David Beníček

Engineering Manager Frontend at Smallpdf

More by this author