Fill PDF Form Online Free

Fill standard PDF form fields online for free. Edit text fields, checkboxes, dropdowns, radio groups, and option lists without uploading your file.

Drop a fillable PDF form here or browse - PDF only Select PDF

Flatten after filling Make filled values permanent in the downloaded PDF. Leave unchecked if you want the form fields to remain editable.

Choose a fillable PDF to start The tool will list text fields, checkboxes, dropdowns, radio groups, and option lists found in the PDF.

Fill PDF forms online

Fill interactive PDF forms directly in your browser. Select a PDF with AcroForm fields, edit the detected values, and download a filled copy. The file stays on your device and is never uploaded to a server.

How to fill a PDF form

Select a fillable PDF - the tool scans standard AcroForm fields locally.
Edit the fields - text boxes, checkboxes, dropdowns, radio groups, and option lists appear in a simple form.
Download the filled PDF - optionally flatten the output so values become permanent.

Supported field types

This tool supports common AcroForm fields: text fields, checkboxes, dropdowns, radio groups, and option lists. It does not edit XFA-only forms, certificate signatures, or custom JavaScript-driven widgets.

Privacy & security

Your PDF stays in your browser. Form detection, editing, and saving happen locally with pdf-lib. We do not upload, store, or inspect your form data.

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Frequently asked questions

Is my PDF uploaded?

No. The PDF is opened, edited, and saved in your browser. Your file and form values never leave your device.

Which forms are supported?

The tool supports standard AcroForm fields such as text fields, checkboxes, dropdowns, radio groups, and option lists. XFA-only forms are not supported.

Can I keep the form editable?

Yes. Leave "Flatten after filling" unchecked to keep supported fields editable in the output PDF.

When should I flatten the PDF?

Flatten when you want a final submission copy where values are permanent and cannot be accidentally changed.

Does this add signatures?

No. This tool fills existing form fields. Use Sign PDF when you need to place a drawn, typed, or uploaded signature on a page.

Does it work on scanned forms?

No. Scanned forms are images without interactive fields. Use OCR tools to extract text, or recreate the form in a PDF editor.