Fill out a PDF online for free

Fill out your PDF by adding text, checking boxes, and placing your signature.

Use this tool for free as often as you need. The document is processed on your device so its contents remain under your control.

or drop the file herePDF · Up to 50 MB per file

How it works

  1. Open the PDF form.
  2. Fill existing fields or create the fields you need.
  3. Export and reopen the copy to verify its values.

What you can do

  • Fill AcroForm text, checkbox, radio and choice fields
  • Create text fields and checkboxes
  • Move, resize and configure created fields

See the tool in action

Before

Before: Fill out a PDF, SunPDF

After

After: Fill out a PDF, SunPDF
Real SunPDF screenshot for “Fill out a PDF”, created with a fictional practice document containing no personal data.

Try the example

Fictional documents: three practice pages and an appendix, with no personal data.

Page 2: add a fictional name and date in separate text boxes. The lines are drawn and do not automatically validate answers.

What does this PDF tool do?

Enter answers, select options, and adjust the unique name, accessible label, required state and appearance of fields you create. The exported copy remains fillable.

Document processing happens in your browser. SunPDF does not upload your PDF to a server for editing. Closing or refreshing the tab ends the current session.

When to use this tool

This method suits visual forms, including documents whose lines and boxes are not interactive fields.

How to check the result

Review every answer, date, mark, and signature, then confirm that the recipient accepts a visually completed form.