Secure

Fill a PDF form, and see it proved

Type into the form's own fields.

On this device

Fill the fields

The form is read in this tab and never sent anywhere. Anything you leave blank stays blank.

    Opened on this device · never transmitted

    What this tool does, exactly

    This builds a form out of the PDF's own fields and writes your answers into them — the fields the author named, not boxes drawn over a picture of the page. By default the answers are then drawn into the pages, so nothing downstream can drop them.

    It uses the form's own fields
    Text boxes, tick boxes, radio buttons and dropdowns are read from the document with the names the author gave them, so an answer lands in the field it belongs to. A dropdown offers the choices the form allows rather than a free-text box that will be rejected.
    Your answers are locked in by default
    A filled PDF normally keeps its answers as form data, which is a separate layer from the page: software that ignores form data shows the recipient an empty form, and some upload portals strip it. The answers are drawn into the pages instead, so what you see is what arrives. Keep it fillable instead if somebody else still has to complete it.
    What it proves
    Before you are offered anything, the finished file is re-opened and its own text is searched for every value you typed. Every page must still be there, and in the locked mode no field may be left as a control. If any of that fails there is no download.
    A form with no fields
    A scan of a form is a picture of one: it has no fields to fill, and no tool can type into a field that does not exist. This one says so by name rather than reporting that nothing happened, and points at the editor, which places text anywhere on a page.
    What it will not do
    Sign anything cryptographically, or send the form anywhere. A drawn signature belongs to the editor and is a picture of your name; a real electronic signature needs an identity authority and an audit trail, which cannot exist on a device that talks to nobody.

    About this tool

    Why can I not type into my PDF?

    Because it probably has no fields. A form that was printed, filled by hand and scanned — or exported flat — is a picture of a form: there is nothing to type into, and no tool can fill a field that does not exist. This one tells you that instead of failing quietly. The editor on this site places text anywhere on a page, which is how a scanned form gets filled.

    Should I lock the answers or keep it fillable?

    Lock them if you are sending the form to somebody: the answers become part of the page, so software that ignores form data cannot show your recipient an empty form. Keep it fillable if somebody else still has to complete their part, and accept that anybody can change what you wrote.

    Is my filled form uploaded?

    No. The form is read, filled, saved and checked in this browser tab. Open your network panel while you use it, or disconnect from the internet once the page has loaded and watch it keep working — which matters more here than almost anywhere else on this site, because a filled form is usually the most personal document somebody owns.

    Can it sign the form as well?

    It can carry a drawn signature if you add one with the editor first, and that is a picture of your name — which is what most forms ask for. It is not a cryptographic signature and this site does not offer one: that needs an identity authority and an audit trail, neither of which can exist on a page that talks to nobody.

    What happens to fields I leave blank?

    They stay blank. Nothing is guessed, nothing is prefilled from anything you typed elsewhere, and a field the form marks read-only is shown but not written to even if an answer reaches it.

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