How to Fill Out a PDF Form on Windows 10 (Free Methods)

You don’t need to buy software to fill out a PDF form on Windows 10. Microsoft Edge, which is built in, can type into fillable forms, add text to forms that aren’t fillable, draw a signature, and save the result. Free Adobe Acrobat Reader adds more tools if you need them. This guide covers both, plus how to tell whether a form is fillable, how to sign it, how to “flatten” it so the answers can’t be changed, and what to do when fields won’t accept typing.

Quick Answer

Right-click the PDF, choose Open with > Microsoft Edge, and click into each field to type. If the form has no fields, click Add text in Edge’s toolbar and click where you want to type. When you’re done, press Ctrl + S (or click Save as) to save the filled form.

Fillable vs. Non-Fillable PDFs

Type	How to tell	How to fill it
Fillable (interactive) form	Fields are highlighted or clickable, and check boxes toggle	Click and type in any PDF viewer
Flat or scanned form	Nothing happens when you click the blanks	Use Add text (Edge) or Fill & Sign (Acrobat Reader)

Method 1: Microsoft Edge (Built In)

Fill a fillable form

1. Right-click the PDF file and choose Open with > Microsoft Edge.
2. Click the first field and type. Press Tab to move to the next field.
3. Click check boxes and radio buttons to select them, and use drop-down lists where offered.

Add text to a non-fillable form

1. Click Add text in the toolbar. Its icon looks like a capital A with a cursor.
2. Click where you want the text and type. Use the small toolbar to change color, size, and spacing.
3. Drag the text box to line it up with the blank.

Sign it

Click Draw, choose a color and thickness, and sign with a mouse, touchpad, or pen.

Save

Press Ctrl + S, or click the Save or Save as icon. Use Save as to keep the blank original.

Method 2: Adobe Acrobat Reader (Free)

1. Install the free Adobe Acrobat Reader from Adobe’s official site. Uncheck any optional extra offers during setup.
2. Open the PDF. Fillable fields work immediately.
3. For non-fillable forms, choose Fill & Sign from the tools or menu (the name and location vary by version).
4. Click where you want to type and enter text. Use the check mark or X tools for boxes.
5. Click Sign (or Sign yourself) to type, draw, or insert an image of your signature.
6. Save with Ctrl + S.

Acrobat Reader tends to handle complex government or bank forms better, especially ones with calculations and scripts.

Flatten the Form Before Sending (Optional)

Recipients can edit filled fields unless you flatten them. To lock the answers in:

1. Open the filled PDF and press Ctrl + P.
2. Choose Microsoft Print to PDF as the printer and click Print.
3. Save the new file. Its text is now part of the page and can’t be edited.

Some official forms must stay fillable for processing, so check the instructions first.

Other Options

• Google Chrome also fills interactive forms and saves them with the Download button.
• Microsoft Word can open PDFs (File > Open) and convert them to editable documents, but complex layouts may shift. It works best for simple forms.
• Print, fill by hand, and scan is always a fallback.

Troubleshooting

I can’t type in the fields

The form isn’t fillable, or it’s secured. Use Add text or Fill & Sign. If it’s password-protected against editing, ask the sender for an editable version.

My entries disappeared after saving

Make sure you saved the file (Ctrl + S) instead of just closing it, and open the saved copy. Some forms made with older tools only keep data in Acrobat Reader.

“Please wait… If this message is not eventually replaced…”

This is an XFA form that only works in Adobe Acrobat Reader. Open it there.

Text doesn’t line up with the blanks

In Edge, drag the Add text box into position. Zoom in for more precise placement.

Related: Make Adobe Acrobat the default PDF app in Windows 10.

Frequently Asked Questions

Is filling out PDFs free on Windows 10?

Yes. Edge and Adobe Acrobat Reader are both free.

Is a drawn signature legally valid?

For many everyday forms, yes, but requirements vary by document and location. Some organizations require a certified digital signature service.

Does this work on Windows 11?

Yes. Edge and Acrobat Reader work the same way on Windows 11.

Summary

1. Open the PDF in Microsoft Edge.
2. Type into fillable fields, or use Add text on flat forms.
3. Sign with Draw, then save with Ctrl + S.
4. Use Acrobat Reader for complex forms, and flatten with Microsoft Print to PDF if needed.