Fill PDF Form

Fill supported existing AcroForm fields in a PDF, then download the completed copy.

Processing

Form inspection and filling run in browser memory; this workflow does not send the PDF to a Stocknivo conversion endpoint. The application does not execute PDF JavaScript, create fields, flatten the form, or provide cryptographic signing.

Loading PDF form tool...

How it works

Choose one PDF and inspect its supported fields. Enter values in the available controls, validate the edits, then download the updated copy. The tool does not create new fields or execute PDF JavaScript.

Supported fields and limits

Files may be up to 20 MiB and 25 pages, with up to 500 logical fields, 200 options per choice field, and 2,000 options total. Submitted text is limited to 4096 characters per value and 100000 characters total; output is limited to 50 MiB. Supported existing fields are text, checkbox, radio, and fixed single-select dropdowns. XFA, signature fields, editable or multiselect dropdowns, duplicate field names, malformed structures, and unknown field types are unsupported.

Related tool

To add a visible signature image instead, use Sign PDF. This is visual signing, not certificate-backed digital signing.