# Fill in a PDF form

> Fill the fields of a PDF form (text, checkboxes, choices) in a simple list grouped by page, then save it, flattened or not. No upload, no account.

Type into the form's fields in a clean list grouped by page, then save the filled PDF.

## Key facts

- **Price:** Free, no sign-up, no watermark
- **Upload:** Never: the file is processed on your device
- **Works on:** Any recent browser on a computer, iPhone, iPad or Android
- **Files:** Up to 400 MB per PDF on a computer, 150 MB on iPhone and iPad. Larger files depend on your device's memory.
- **Updated:** October 1, 2026

The tool reads the fillable fields of the PDF (text boxes, checkboxes, radio buttons, drop-down lists) and shows them with their labels, grouped by page. Save the result as an editable form or flattened so it can't be changed.

## How it works

1. Drop the PDF form.
2. Fill the fields in the list.
3. Choose whether to flatten, select Save filled PDF and download it.

## Supported files

Input: a PDF with fillable fields (AcroForm). Output: one PDF.

Up to 400 MB per PDF on a computer, 150 MB on iPhone and iPad. Larger files depend on your device's memory.

## When to use it

- Complete an administrative form without printing it.
- Fill a registration or rental application on your phone.
- Prepare a form, then sign it with [Sign PDF](https://nimbopdf.com/sign-pdf/).

## Quality and limitations

- Only fillable fields work. A scanned or flat form has no fields: use Sign PDF to add text and signatures on top.
- XFA forms (some government forms) can't be filled in a browser.

## Common issues

- **“This PDF has no fillable form fields.”:** The form is flat. Print it, or use Sign PDF to place your signature and the date.
- **Some characters don't show in the fields.** Text in scripts the standard PDF font can't draw is saved for the reader app to display; check the result in your [PDF reader](https://nimbopdf.com/pdf-reader/).

## Private by design

This tool runs entirely in your browser with JavaScript. Your file is read and processed on your device and is never uploaded to a server. Closing the tab discards everything.

[See how it works, step by step](https://nimbopdf.com/how-it-works/)

## Frequently asked questions

### Can I sign the form too?

Yes. Save the filled PDF, then open it in Sign PDF.

### Are the field names unclear?

Labels come from the PDF itself; the page number helps you locate each field.

### Is my data uploaded?

No. The form is filled in your browser.

## Related tools

[Sign PDF](https://nimbopdf.com/sign-pdf/)[Flatten PDF](https://nimbopdf.com/flatten-pdf/)[Edit metadata](https://nimbopdf.com/edit-pdf-metadata/)[PDF reader](https://nimbopdf.com/pdf-reader/)

## Guides

- [How to sign a PDF on iPhone (in seconds)](https://nimbopdf.com/how-to-sign-a-pdf-on-iphone/)

## Edit

[Watermark PDF](https://nimbopdf.com/watermark-pdf/)[Page numbers](https://nimbopdf.com/add-page-numbers-to-pdf/)[Crop PDF](https://nimbopdf.com/crop-pdf/)[All PDF tools](https://nimbopdf.com/tools/)

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Source: https://nimbopdf.com/fill-pdf-form/ · Nimbo (English) · https://nimbopdf.com/llms.txt