Fill In a PDF Form

Open a PDF form, see every field it contains, and type your answers straight in. Checkboxes and drop-downs become real controls you can use.

Files are never uploaded

How to use it

Add the form

Drop the PDF above or click to browse. A moment later its fields are listed here — text boxes, checkboxes and drop-downs, each labelled with the name the form author gave it.

Fill in the fields

Type into the text boxes, tick the checkboxes and pick from the drop-downs. Fields you leave alone stay as they were.

Decide about flattening

Flattening turns the entries into ordinary page content, so they cannot be changed or cleared afterwards. Leave it on for a finished form, and turn it off if the file still has to be edited.

Run the tool

Press the button and your answers are written into a new copy of the form.

Download and check

Open the result and confirm the answers landed in the right fields. In a form with awkward field names a value can occasionally appear in the wrong box — that comes from the form itself, so it is worth a quick look.

Common issues

An answer landed in the wrong box

Field names are not always meaningful, and a few forms reuse one name across several boxes. Check the output carefully; if it looks wrong, the source form itself is the cause.

The file still asks to be filled in when opened

Some viewers re-run a form’s script on open and can hide saved values. Try another viewer, or turn flattening on so the answers become plain page content.

Radio buttons will not change

A radio group accepts only the options its author defined. If a choice seems to be missing, it is not part of that group — leave it alone or pick the closest available option.

A scanned or printed-to-PDF form has no fields at all

If the PDF was printed rather than saved as a form, the lines are just ink. Nothing can be filled; use Edit PDF to add text over them.

Frequently asked questions

What counts as a fillable PDF form?

A PDF with AcroForm fields — the kind you can click and type into in an ordinary viewer. If clicking the blank lines in your PDF does nothing, it has no fields and there will be nothing to list.

The tool says my PDF has no fields

The document was probably created from a scan or exported as flat pages, so the lines are printed ink rather than real fields. Use Edit PDF to place text where you need it, or Flatten PDF if you only want to freeze answers already there.

What does flattening do?

It turns filled-in fields into ordinary page content. The answers stay visible and print correctly, but they can no longer be changed, cleared, or read out as separate field values.

Why should I leave flattening off?

If the form still needs editing, keep it off. Flattened answers cannot be adjusted, so turn it on only when the form is final and on its way out.

Can I add a field that is not there?

No. This tool works with the fields a document already has. Placing a new text box on a page is an editing job — use Edit PDF instead.

Some field names look like code

Form authors often name fields things like "Text1" or "topmostSubform[0].Page1[0].Name[0]". The labels come straight from the file, so they read exactly as the author defined them.

Is my form sent anywhere?

No. The document is opened, filled and saved entirely in your browser.

Can I fill in a scanned form?

Not directly — a scan has no fields. Either run OCR PDF and use Edit PDF to place text, or ask the sender for the original fillable version.

Does it work with XFA forms?

No. Some tax and government forms use XFA, a different form technology that browser libraries cannot edit reliably. Those need the issuer’s own tool or the original source file.

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Send us feedback

Something broken, or unclear? Tell us and we will look at it.

About this page. Written and maintained by the AI-Mind team. Last reviewed 11 October 2026. This tool runs entirely in your browser. Found an error or have a suggestion? Use the feedback form above or email [email protected].