Free · Private · No upload

Make a PDF fillable with CommonForms

Detect text boxes, checkboxes and signature lines locally with CommonForms, fill them on the page, and save an updated PDF.

Convert a printed PDF into a fillable form

Docs Bunny runs the open CommonForms FFDNet-S model in your browser. Detected fields stay on the page so you can type, check and sign, then download a fillable or flattened PDF without uploading the document.

  1. Open the PDF

    Choose a printed or existing form. Your file stays in the browser.

  2. Detect or add fields

    Run CommonForms to find fields, or place text, checkbox and signature fields by hand.

  3. Fill and save

    Complete the form on the page, then download a fillable PDF or a flattened copy.

Common questions

Is the PDF uploaded for field detection?

No. CommonForms FFDNet-S runs locally after the model is downloaded once and cached. Page pixels never leave your browser.

What fields can CommonForms detect?

Text boxes, choice buttons (checkboxes) and signature lines, matching the CommonForms dataset classes.

Can I fill a PDF that already has form fields?

Yes. Existing AcroForm fields are loaded immediately so you can update them and save a new PDF.

Is this a cryptographic digital signature?

No. Signature fields accept a typed or drawn visual signature, not a certificate-backed digital signature.