How do I fill out a PDF form without Acrobat?

Drop the PDF onto this page. Interactive fields are detected and highlighted, so you type straight into them, tick the checkboxes and pick from the dropdowns, then download the filled file. There is nothing to install and no account.

Which kinds of PDF forms work?

Standard interactive PDF forms (AcroForms) with text fields, checkboxes, radio buttons, dropdowns and list boxes are detected and filled by value. XFA-only forms — a rarer, older format — are not supported, but you can still type free text over them.

My PDF has no fillable fields. Can I still fill it?

Yes. The tool offers to find the fields with FFDetr, a form-field detection model that runs in your browser: you check what it found and get a fillable PDF. Or skip that and click anywhere on a page to drop a text box or a checkmark.

What does “Lock fields (flatten)” do?

Flattening bakes your values into the page so the fields are no longer editable — useful when you’re sending a finished form. Leave it off to keep the PDF fillable so answers can still be changed later.

Are my files uploaded?

No. The PDF is opened, filled and saved entirely in your browser on your own device. It is never uploaded, and nothing is kept once you close the tab.

Is it really free? Are there limits?

Completely free — no account, no watermark and no per-file limit. Everything runs on your device, so there is nothing to meter.

Does it use an AI model?

Only if you ask it to find the fields on a flat PDF. Filling a real form is a document operation, not a guess, so nothing downloads for it. To find fields, FFDetr (Apache-2.0) downloads once, about 38 MB, or about 120 MB on a computer with a graphics card, and runs on your device.

How to fill out a PDF form

Open a PDF and fill it in. If it has real form fields, they light up ready to type. If it doesn't, a form-field model can find the boxes for you first, or you click anywhere to drop text or a checkmark. Keep it fillable or lock it flat — either way it runs entirely on your device and your files are never uploaded.

Your PDF
Drop a PDF here — or click to choose
PDF
Your files are never uploaded — everything runs on your device.
Fill the fields
Export

Filling out a PDF form, step by step

Open your PDF

Drop in a PDF. It loads straight into your browser and every page renders locally — your files are never uploaded.
Fill the fields or add text

Fillable forms are detected automatically and highlighted so you can type, tick and choose. No fields? Let the field finder add them, or click anywhere to drop text or a checkmark exactly where you need it.
Download your filled PDF

Choose whether to keep the form editable or lock it flat, then download. The filled PDF is built on your device and saved straight to your computer.

Why fill here

Real forms and flat PDFs

Native AcroForm fields — text boxes, checkboxes, radio buttons and dropdowns — are filled by value. On a PDF with no fields, an AI model can find the boxes and make it a real form first, or you type free text and place checkmarks wherever you like.

Keep it fillable, or lock it

By default the form stays editable so you or someone else can change answers later. Tick “Lock fields” to flatten it, baking the values in so they can’t be edited.

Your files are never uploaded

Reading, filling and saving all happen 100% in your browser. There is no server round-trip, so the document you are filling in is never uploaded anywhere.

Free, unlimited, no account

Fill as many PDFs as you want, of any length, with no watermark and no sign-up. Because it all runs on your device, there is nothing for us to meter.

What it runs on

Filling uses no AI model: pdf.js, Mozilla’s PDF engine, plus a form writer, so it is instant and the filled document is a real PDF rather than a picture of one. Only finding fields on a flat PDF uses a model, FFDetr, which downloads once and also runs on your device.

Frequently asked questions

How do I fill out a PDF form without Acrobat?: Drop the PDF onto this page. Interactive fields are detected and highlighted, so you type straight into them, tick the checkboxes and pick from the dropdowns, then download the filled file. There is nothing to install and no account.
Which kinds of PDF forms work?: Standard interactive PDF forms (AcroForms) with text fields, checkboxes, radio buttons, dropdowns and list boxes are detected and filled by value. XFA-only forms — a rarer, older format — are not supported, but you can still type free text over them.
My PDF has no fillable fields. Can I still fill it?: Yes. The tool offers to find the fields with FFDetr, a form-field detection model that runs in your browser: you check what it found and get a fillable PDF. Or skip that and click anywhere on a page to drop a text box or a checkmark.
What does “Lock fields (flatten)” do?: Flattening bakes your values into the page so the fields are no longer editable — useful when you’re sending a finished form. Leave it off to keep the PDF fillable so answers can still be changed later.
Are my files uploaded?: No. The PDF is opened, filled and saved entirely in your browser on your own device. It is never uploaded, and nothing is kept once you close the tab.
Is it really free? Are there limits?: Completely free — no account, no watermark and no per-file limit. Everything runs on your device, so there is nothing to meter.
Does it use an AI model?: Only if you ask it to find the fields on a flat PDF. Filling a real form is a document operation, not a guess, so nothing downloads for it. To find fields, FFDetr (Apache-2.0) downloads once, about 38 MB, or about 120 MB on a computer with a graphics card, and runs on your device.

Your PDF

Fill the fields

Export