Fill PDF Form

Fill PDF forms online in a clean, simple layout

Fillable PDFs are everywhere — job applications, school admission forms, KYC and account-opening forms, visa checklists, medical history forms, tax worksheets — but filling them on a phone or in a browser’s tiny boxes is fiddly. The Fill PDF Form tool reads every field in the PDF and shows them as a clear, readable form beside the page, so you can type comfortably and see exactly where each answer will go.

Text boxes, multi-line boxes, checkboxes, radio buttons, dropdowns and list boxes are all supported. Focus a field and its spot lights up on the page; tap a highlighted area on the page and the tool jumps to that field. When you are done, download the filled PDF — or flatten it so the answers become a permanent part of the page.

The PDF is filled inside your browser and never uploaded, which matters for forms full of personal details.

How to fill out a PDF form online

1. Drop a fillable PDF onto the upload area or click it to choose the file.
2. Fill in the fields in the form panel. Required fields are marked with *, and each field shows the page it is on.
3. Click into a field to see where it sits on the page, or tap a highlighted area of the page to jump to its field.
4. Tick Flatten the form if the answers should no longer be editable — for example before emailing a final copy.
5. Press Download filled PDF. Use Reset answers to go back to the values the PDF came with.

Fill PDF Form features

Fillable or flat: what kind of PDF do you have?

A fillable PDF contains interactive form fields (AcroForm). This tool lists them as soon as the file opens. A flat PDF is just a picture of a form — a scan or a document printed to PDF — and has no fields, so there is nothing to fill. You can add fields to it with Create PDF Form, or type corrections onto the page with PDF Whiteout.

An XFA form is a third kind, built with Adobe LiveCycle or AEM Forms Designer and used by some government departments. Its fields are defined in XML that only Adobe Acrobat and Reader on desktop can display, so open those in Acrobat Reader.

Should you flatten a filled form?

• Flatten when sending a final copy: answers can’t be altered by accident, and they look the same in every app, including ones that don’t display form fields well.
• Don’t flatten if someone else still needs to edit or add to the form, or if the recipient’s system reads the form data automatically.
• Need a signature? Add one with Sign PDF after filling. Combine the form with supporting documents using Merge PDF.
• The standard form font covers Latin letters, digits and common symbols. Write ₹ as “Rs.”; the tool tells you if a character can’t be shown.