Best Free Tools to Create PDF Forms (2026 Comparison)

Creating fillable PDF forms doesn't require Adobe Acrobat — but the free alternatives each have meaningful limitations you need to know before committing to one. This comparison covers what's actually free, what's freemium, and what's only worth paying for.

What "Creating a PDF Form" Actually Requires

To be useful, a PDF form creation tool needs to:

1. Let you place interactive form fields (text boxes, checkboxes, dropdowns, radio buttons, signature fields) on a page
2. Save those fields as standard AcroForm fields (the PDF specification's interactive form format)
3. Produce a PDF that recipients can fill in any standard reader — Acrobat Reader, Chrome, Edge, Preview

Tools that add visual text boxes (static content that looks like fields) don't count. Only AcroForm fields are truly fillable.

Adobe Acrobat Pro — Most Capable, Not Free

Cost: ~$20–25/month (subscription)
Platform: Windows, Mac

The benchmark. Acrobat Pro's Prepare Form tool auto-detects visual form layouts and places fields, supports all field types including calculations and JavaScript, handles signature fields with full certificate support, and lets you Reader-enable forms so Acrobat Reader users can save their filled data.

Best for: Professional forms, legally signed documents, forms with calculations, high-volume form workflows.
Skip if: You create forms rarely and your needs are simple.

LibreOffice Writer — Fully Free, Desktop

Cost: Free (open-source)
Platform: Windows, Mac, Linux

LibreOffice can create genuine AcroForm fillable PDFs through its built-in form controls (View → Toolbars → Form Controls). All standard field types are supported: text box, checkbox, radio button, list box, combo box. Export to PDF with the "Create PDF form" checkbox enabled.

Real capabilities:

• Text fields, checkboxes, radio buttons, list boxes, combo boxes ✓
• Signature fields ✗ (no native signature field type)
• Calculated fields ✗ (no built-in calculation without macros)
• Field validation ✗ (basic only via macros)
• Auto-detect visual form layout ✗ (manual field placement only)

Best for: Standard data collection forms, internal company forms, anyone who won't pay for Acrobat Pro.
Limitation: No auto-detect — you place every field manually. Complex forms take time. Signature fields require workarounds.

PDFescape — Free Browser-Based Editor

Cost: Free (basic), $3/month (premium)
Platform: Browser (any OS)

PDFescape lets you open an existing PDF and add form fields on top of it — without converting or re-exporting. The free tier supports text fields, checkboxes, radio buttons, dropdowns, and list boxes on PDFs up to 10 MB with up to 100 pages.

Real capabilities:

• All standard AcroForm field types ✓
• Works on existing PDFs ✓
• No software install ✓
• Signature fields ✗ (basic in free tier)
• Calculations ✗
• File size limit (10 MB free, 100 MB premium)
• Watermark on output in free tier ✗ — verify before using

Best for: Quick field additions to an existing PDF design. Good when you already have a professionally laid-out PDF and just need to make it fillable.
Limitation: Not suitable for designing the form from scratch — you need an existing PDF to work from.

JotForm — Best for Web Forms With PDF Output

Cost: Free (5 forms, 100 submissions/month), paid plans from $39/month
Platform: Browser

JotForm is primarily a web form builder that also exports forms as PDFs. You design the form in JotForm's visual builder, collect responses via web (recipients fill the form in a browser), and JotForm can generate a PDF of each completed response.

It's not a traditional PDF form workflow — recipients fill a web form, not a PDF. The resulting fillable PDF download from JotForm is available but is a secondary feature.

Best for: Data collection workflows where a web form is acceptable and you want PDF records of submissions.
Not for: Use cases requiring recipients to fill and return a PDF file.

PDF.co Form Builder — Developer-Focused

Cost: API-based pricing (pay per use)
Platform: API / browser

PDF.co offers a form editor as part of its PDF API platform. You can design forms visually and integrate form data collection into applications via API. More relevant for developers building PDF workflows than for end-user form creation.

Foxit PDF Editor — Strong Alternative to Acrobat

Cost: ~$9/month (subscription) or one-time purchase
Platform: Windows, Mac

Foxit is a serious Acrobat alternative with full AcroForm support including auto-detect, calculations, JavaScript, and signature fields. The interface is similar to Acrobat Pro. Often priced lower than Adobe.

Best for: Users who want Acrobat-level capabilities without Acrobat's price.

Online PDF Editors With Form Field Support

Several online PDF editors include form field creation as part of their editing suite, without requiring dedicated form-creation software:

OnlinePDFEdits: Edit PDFs and add text elements, images, and interactive components without installation. Best for modifications to existing PDFs.

Smallpdf: Has a form filler but limited form creation capabilities.

Adobe Acrobat online (free tier): Very limited — doesn't include form creation in the free tier.

Comparison Table

The Practical Decision

Creating forms rarely (1–2 per year)? LibreOffice is free and handles everything basic. For signature fields, use a PDF on top of it and add a designated area for a handwritten/drawn signature.

Creating forms regularly for internal use? LibreOffice or PDFescape handles most needs. If calculations matter, consider Foxit.

Creating forms for external recipients who need certified signatures? Acrobat Pro or a dedicated e-sign platform (DocuSign, Adobe Sign). The certification infrastructure for legally binding signatures requires proper tooling.

Collecting data at scale? Use a web form platform (JotForm, Typeform, Google Forms) and generate PDF receipts separately. Managing PDF form submissions at scale via email is operationally painful — web forms with proper submission tracking are better.

FAQ

Can I create a PDF form in Google Docs and make it fillable?

No. Google Docs exports to PDF but doesn't create AcroForm interactive fields in the export. The resulting PDF is a static document. Google Forms creates web-based forms, not PDF forms. To create a fillable PDF, use one of the tools in this guide rather than Google Docs.

Is there a truly free tool that creates PDF forms without watermarks?

LibreOffice is completely free with no watermarks. PDFescape's free tier has been reported to include watermarks on some outputs — verify for your specific use case. Acrobat Pro and Foxit have trials but watermark trial output.

What's the minimum I need to create a simple two-field sign-and-return form?

LibreOffice Writer: add a text field for name, add a text field for date, and include a visual area for signature (since LibreOffice doesn't have a native signature field, add an instructional text like "Sign below:" and a blank space). Export to PDF with "Create PDF form" enabled. Recipients can fill name and date in any PDF reader, print to sign, or add a drawn signature using their reader's annotation tools.

Do PDF forms work on phones?

Yes — AcroForm fields work in Acrobat Reader on iOS and Android (free), allowing recipients to fill forms on their phones. Adobe Acrobat Reader on mobile supports text fields, checkboxes, radio buttons, and dropdowns. Signature fields work in Acrobat Reader mobile. Complex JavaScript-driven forms may not work fully on mobile readers.