Fill PDF Form
Type into the fields of a PDF form and save it.
or drop a PDF anywhere on this page
Your files never leave your device. No upload, no signup.
How to use Fill PDF Form
Three steps, all on your device.
- 1
Choose a PDF form
Select a PDF with fillable fields. Each field becomes a box you can type in, right on the page.
- 2
Fill in the fields
Type, tick and choose. The list on the right shows which fields are filled and which are required.
- 3
Save the filled PDF
Download the form with your answers. Lock the answers if nobody should change them.
Private by design
Processing happens in your browser. Your files are never uploaded.
No account needed
Free to use. No signup, no email, no watermark.
No upload wait
Files open straight from your device. There is nothing to send to a server first.
Fill PDF Form FAQ
Short answers to common questions.
My PDF has lines but no boxes to type in. Why?
Only PDFs with real form fields can be filled here. For a form that is just printed lines, use Sign PDF to place text where you need it.
What does locking the answers do?
It turns the fields into ordinary page content, so the answers can no longer be edited, and the form looks the same in every PDF app.
Which forms are not supported?
Older XFA forms, which only Adobe apps can fill, and digitally signed PDFs, because filling them would break the signature.
Do I need Adobe Reader to fill in a PDF form?
No. The form opens right in your browser, so no other app is needed. Only older XFA forms need Adobe’s own apps.
Can I save a half-filled form and finish it later?
Yes. Save without locking the answers. The fields stay fillable, so you can open the saved PDF here again, or in another PDF app, and carry on.
How do I sign a form after filling it?
Tick “Lock the answers” and save, then use “Continue with…” to open the filled PDF in Sign PDF. Sign PDF cannot open a form whose fields can still be changed.
Supported files and current limitations
Works with standard PDF forms (AcroForm). Older XFA-only forms, digitally signed PDFs, password-protected and damaged files are refused.
Your PDF is edited directly instead of being rebuilt, so bookmarks, links, attachments and accessibility tags stay in the new file.
Fields use the form’s own font. Text in scripts that font cannot show (for example Urdu or Arabic in most forms) is refused with a message.
Processing stays on your device with no cloud fallback. Very large files can exceed your device’s memory. Your original files are never changed.