How to Make a Fillable PDF (Free Routes, Honestly Explained)
Make a fillable PDF for free. The real difference between a print-and-fill PDF and a true interactive form — plus the free tools that build each.
Before you build anything, decide which "fillable" you actually need, because picking wrong wastes an afternoon. Most people asking "how do I make a fillable PDF" only need the static kind — and that's free and takes ten minutes.
The distinction that decides everything
| What you get | Static PDF | Interactive AcroForm |
|---|---|---|
| How it's filled | Type on top with a markup tool, or print and write | Click a real field and type directly |
| What you build it in | Word, Google Docs, any layout tool → export to PDF | A form designer: LibreOffice Draw (free) or Acrobat Pro (paid) |
| Fields snap into place | No — the recipient positions their own text | Yes — cursor jumps field to field, checkboxes toggle |
| Effort to make | 10 minutes, free | Longer; you place and name each field |
| Best for | One-off forms, sign-here sheets, print handouts | Forms many people fill repeatedly, digital-only workflows |
If the people filling your form will open it in a browser or Preview and type on top — or print it — a static PDF is genuinely all you need. Reserve the interactive route for forms filled by lots of people who expect clickable fields.
Route 1 — Static "print and fill" PDF (free, 10 minutes)
This is the fast path, and for most forms it's the right one. Build the look in a tool you already have, then convert.
Lay out the form in Word or Google Docs
Type your labels — Name, Date, Address. For write-on lines, use the underline character or a bottom table border. For checkboxes, insert a ☐ symbol or an empty table cell.
Use a table to keep fields aligned
Tables are the secret to a tidy form: one column for labels, one for blank answer cells. Then hide the borders you don't want. Everything stays lined up.
Leave real space to write
Make answer rows tall enough to type or handwrite into — a cramped line is the #1 complaint on print-and-fill forms.
Export to a clean PDF
Convert the document with Word to PDF (or export a Google Doc as PDF). You get a crisp, universal PDF anyone can open.
Test it
Open the PDF and add a text box on a line to confirm there's room. Recipients type on top (Preview / Acrobat Reader) or print and fill by hand.
Route 2 — A true interactive form (real clickable fields)
If you genuinely need fields people click into, you need a form designer — this is the step a plain document export cannot do.
The free option: LibreOffice Draw
LibreOffice is free and open-source, and its Draw module can create real interactive AcroForm fields.
- Install LibreOffice (free). Open your layout in LibreOffice Draw (you can open a PDF directly to add fields to an existing design).
- Turn on the form controls: Form → Design Mode, and open the Form Controls toolbar.
- Draw fields onto the page — Text Box for typed answers, Check Box, List Box, Option Button (radio) as needed.
- Give each field a clear name via its Control Properties so the data is organized.
- Export with File → Export as PDF and tick Create PDF form / choose the form-submit format. You now have a PDF with genuinely clickable fields.
The paid option: Adobe Acrobat Pro
Acrobat Pro (~$20/month) has a Prepare Form tool that auto-detects labels and drops in fields, plus polished field validation. It's the smoothest experience — but it's a subscription, and for a form or two a year, LibreOffice does the same core job for free.
After the form exists: signing and locking
However you built it, two finishing steps come up constantly.
Signatures. If your form has a signature line, recipients can sign it free with Sign PDF — draw, type, or upload a signature and place it — instead of printing and scanning.
Locking a completed interactive form. Once someone fills an interactive form, the fields are still editable by the next person. To freeze a submitted copy, run it through Flatten PDF: it merges the entered values permanently into the page so nothing can be altered.
Frequently asked questions
Can pdfty create a fillable PDF with clickable fields?
No — and we won't claim it can. Building interactive AcroForm fields is a form-designer task (free LibreOffice Draw, or paid Acrobat Pro). pdfty handles the surrounding steps: Word to PDF to turn your layout into a PDF, Sign PDF for signatures, and Flatten PDF to lock a completed form.
What's the difference between a static and an interactive fillable PDF?
A static PDF has lines and boxes drawn on the page — recipients type on top or print and write. An interactive PDF has real fields you click into, with tab order, checkboxes, and dropdowns. Static is free and fast; interactive needs a form designer.
How do I make a fillable PDF for free?
Two free routes. For a static print-and-fill form: design it in Word or Google Docs and convert with Word to PDF. For real clickable fields: use LibreOffice Draw, which creates interactive AcroForm fields and costs nothing.
Can I just make it in Word and get clickable fields?
No. A standard Word export produces a static PDF — the boxes are only drawn on the page. Word's own "content controls" don't survive as PDF form fields on export. For clickable fields you need LibreOffice Draw or Acrobat Pro.
Do I need Adobe Acrobat Pro to make a fillable form?
Not for a free result. LibreOffice Draw makes genuine interactive fields for free. Acrobat Pro (~$20/mo) is smoother and auto-detects fields, but it's optional — worth it only if you build forms often.
Recipients can't type into my "fillable" PDF — why?
You almost certainly made a static PDF (a Word/Docs export). There are no real fields to click. Either tell recipients to type on top with Preview or the free Acrobat Reader, or rebuild it as an interactive form in LibreOffice Draw.
How do I stop people editing a form after it's filled in?
Flatten it. Flatten PDF bakes the entered values permanently into the page, so a completed interactive form can no longer be changed — ideal before archiving or submitting it.
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