Fill in a PDF form

Vellum opens the fields of a PDF form — text, checkboxes, radio buttons, dropdown lists — and lets you complete them directly in the browser. An option then locks the answers, so the document you send can no longer be altered. Government forms, contracts, HR questionnaires: what you type stays on your device, and no server ever sees it.

How do you fill in an interactive PDF form?

Open the PDF in the tool: the form’s text fields, checkboxes, radio buttons and dropdown lists become fillable directly in the browser. Once complete, download the filled-in file.

Can I prevent my answers from being changed after sending?

Yes, an option locks the answers before producing the final file, so a government form, a contract or an HR questionnaire can’t be altered afterward.

Are my answers to a confidential form sent to a server?

No, everything stays on your device: what you type remains local until you decide to send the file yourself, and the tool is free.

Vellum — free PDF tools whose processing stays on your device.