or drop files here
- Type straight into the form — no printing or scanning
- Your answers stay on your device, never uploaded
- Download it filled, or flatten it so it can't be changed
Fill any PDF form in your browser
A paper form wants you to print it, fill it by hand, and scan it back — and that always fails at the worst moment: the application is due tonight, the contract has to go out by email, the form must reach an office that only accepts uploads. Fill PDF Form removes the whole round trip. Open the file, click a field, and type. Text boxes, checkboxes, radio buttons, and dropdowns all behave the way a real form should, with your answers written back into the PDF exactly where they belong. When the form has dozens of fields, the list on the right keeps every one of them in order and shows what is still empty, so nothing gets missed. Before you download, flip on Flatten to lock your answers in place — the finished document can no longer be edited, the way a signed and submitted form should be. The file never leaves your device, and there are no ads, no watermark, and no account needed.
Type, tick, sign off. Done.
Open the form, click a field, and type. Checkboxes, radio buttons, dropdowns, and text boxes all work the way you expect — then download a finished copy that keeps every answer exactly where you put it.
How to fill a PDF form online
- 1Drop your PDF form into the box above, or tap Select PDF to choose it from your phone or computer.
- 2Click any field and type. Checkboxes, radio buttons, and dropdowns all work with a tap or a click.
- 3Use the field list on the right to see what is filled and what is still empty, and jump straight to any field.
- 4Tap Download filled PDF. Turn on Flatten first if you want your answers locked in so they can't be changed.
Why fill forms with PDFTrusted
- Type straight into the form — text boxes, checkboxes, radio buttons, and dropdowns all work as they should
- Every answer lands exactly where it belongs, written back into the PDF itself
- A field list shows what is done and what is still empty, so long forms never lose a box
- Flatten the form to lock your answers, so the finished document can't be edited or changed
- Works on phone, tablet, and computer, with nothing to install and no account required
- Private by design — your form and your answers never leave your device
Fill PDF Form FAQ
Is it free to fill a PDF form on PDFTrusted?
Yes. Fill PDF Form is included in your free daily uses, for PDFs up to 100 MB and 50 pages. There are no ads on the page, no watermark on the result, and no account to get started.
Do my answers get uploaded to a server?
No. Your form is opened and filled in your own browser, and the finished PDF is written on your device. The file never leaves it, so a contract, application, or tax form stays as private as the paper it came from.
Will the form still be editable after I download it?
It depends on what you choose. By default the fields stay editable, so the next person can keep filling or correct something. Turn on Flatten and your answers are locked into the page — nobody can change them, which is exactly what you want before you send a signed application.
My PDF has no fillable fields. Can I still fill it?
Some PDFs are just a picture of a form, not a real fillable form. Fill PDF Form works with fillable forms. If yours has no fields, open it in Edit PDF and add text boxes, check marks, and your signature right on the page.
Does it work with checkboxes, radio buttons, and dropdowns?
Yes. Checkboxes tick on and off with a tap, radio buttons select one option from a group, and dropdowns open the list the form's author defined. Each one writes the right value back into the PDF.
Can I fill a form on my iPhone or Android?
Yes. Open this page in Safari, Chrome, or any modern browser, choose the form from your Files app or downloads, and fill it with a tap. Nothing to install, and the finished PDF downloads straight to your phone.
What if the PDF is password-protected?
A password-protected PDF needs to be unlocked before it can be opened. Remove the password with Unlock PDF first, then come back and fill the form here.
What does flattening a PDF form mean?
Flattening bakes your answers into the page as ordinary text, and removes the editable fields. The document looks identical, but the fields can no longer be selected or changed. It is the finish you want for a form that is ready to submit.
Privacy promise
- Secure & private
- Privacy promise