Fill PDF Form

Fill in a PDF form's fields — privately, in your browser.

Fill in the fields of a PDF form entirely in your browser. Upload an interactive (AcroForm) PDF, complete its fields, and optionally flatten it so the values are locked. Nothing is uploaded.

Click or drag files here

Supports PDF documents up to 100MB. Processed entirely in your browser.

Common use cases

Complete an official application form
Fill a contract template's fields
Lock a finished form so fields can't be changed

How it works

Select your PDF form

Drop or pick an interactive PDF. It is read locally — never uploaded.

Fill the fields

Complete the text fields, checkboxes and dropdowns the form contains.

Flatten & download

Optionally lock the fields, then save your completed PDF.

Frequently Asked Questions

What kind of PDF works?

PDFs with interactive form fields (AcroForm). If the tool says there are no fields, the document is a flat PDF without fillable fields.

Is my data uploaded?

No. The form is read and filled entirely in your browser — nothing leaves your device.

What does flatten do?

Flattening bakes your answers into the page so the fields can no longer be edited — useful before sending a final copy.