Home›Tools›Create Fillable PDF
🔒 No uploadFinds blank linesStandard PDF fields

Create a Fillable PDF Form by AIMerger

Turn a form made in Word, a scanned form or a blank page into a fillable PDF: draw text fields, multi-line boxes, check boxes, radio choices, drop-downs and date fields — or let it find the ____ lines and [ ] boxes for you. Give fields names and tooltips, mark them required, then fill the form in any PDF reader or from a spreadsheet.

🔒 Processed locally in your browser — your files never leave your device
1

Open a PDF — or start blank

Existing fields are kept.

📝 Drop a PDF to make fillable, or tap to choose

A form made in Word, a scanned form, or any PDF

or
2

Add fields

Choose a type and drag on the page, or let it find the blank lines and boxes. Name each field and set its options.

3

Save & download

Standard PDF form fields that work in Acrobat, Chrome, Edge, Firefox and Preview.

🔒 Built on your device. Nothing is uploaded.

Limits on this device

Field text uses Helvetica; values in other scripts may not display in every PDF reader. Date fields are text fields with a format hint (no scripts are added). Signature fields aren’t created — add a drawn signature with Add Image to PDF instead. Password-protected PDFs need the password removed first.

Create Fillable PDF — a real example made with this tool from sample files

A flat form with ____ lines and [ ] boxes → fillable fields found automatically.

How to use the fillable PDF form builder — 4 steps

  1. 1

    Open your PDF — or start with a blank A4 or Letter page.

  2. 2

    Press Find blanks automatically to add fields where the page has ____ lines and [ ] boxes, and/or choose a field type and drag a box on the page.

  3. 3

    Select each field to set its name, tooltip (read aloud by screen readers), whether it’s required, text size, maximum length, default value or options.

  4. 4

    Press Save fillable PDF and download. Open it in any PDF reader to fill it in — or fill many copies at once with Fill PDF from Excel.

💡 Tip: Name fields the way you’ll name spreadsheet columns (“Full name”, “Email”), and Fill PDF from Excel will match them automatically.

Real form fields, not drawn boxes

The fields you add are standard PDF (AcroForm) fields: they can be filled and saved in Adobe Acrobat Reader, Chrome, Edge, Firefox, macOS Preview and most mobile PDF apps. Text fields can be single or multi-line with a maximum length; check boxes and radio choices can have defaults; drop-downs list your options. Existing fields in the PDF are kept.

Accessible and automatic

Every field gets a tooltip (the PDF “TU” entry) that screen readers announce — the field name is used if you don’t write one. “Find blanks automatically” reads the page text, adds a text field over each run of underscores or dots and a check box over each [ ] or ☐, and names each field from the label beside it (“Full name: ______” becomes “Full name”). Rotated pages are handled, so fields line up and their text is upright.

What it doesn’t add

No JavaScript is added (so no automatic date formatting or calculations) — date fields carry a format hint instead. Signature fields aren’t created; to sign, add a drawn signature with Add Image to PDF.

Frequently asked questions

How do I make a PDF fillable for free?

Open the PDF above, press Find blanks automatically or draw fields with the field tools, then press Save fillable PDF and download. No sign-up, no watermark.

Can it detect the fields automatically?

It adds text fields over ____ lines and check boxes over [ ] or ☐ boxes in the page text, named from their labels. Scanned forms without text need fields drawn by hand (or OCR first).

Which field types can I add?

Text, multi-line text, check boxes, radio choices, drop-downs and date fields.

Will the form work in Adobe Reader?

Yes — the fields are standard PDF form fields.

Can I fill the form for many people at once?

Yes. After saving, use Fill PDF from Excel to create one filled copy per spreadsheet row.

Is my PDF uploaded?

No. The form is built in your browser on your device.

Related tools

Free tools that pair well with this one.

🧰 Browse all 88 AIMerger tools →