How to fill an interactive PDF form or create new fields
Read existing PDF form fields, fill text and checkbox values, or add new interactive fields using top-left page coordinates.
Steps at a glance
- Read existing fields, or create uniquely named new fields.
- Fill the supported values and download the interactive result.
- Check it in a PDF reader; flatten a separate copy only when a static result is suitable.
Check whether the form has interactive fields
A PDF that looks like a form may contain only printed labels and blank lines. Fill PDF forms reads existing interactive text fields, checkboxes and lists. A page with no form fields needs new fields or visible annotations instead.
Read and fill the existing fields
Choose the PDF, confirm server-processing consent, and select “Read form fields.” Set the displayed values or edit the field-values JSON. Download the completed PDF and reopen it in a reader that supports forms. The result keeps its fields interactive; it is not automatically flattened. Digital signature fields cannot be filled by this tool.
Add fields to a document
Use Create PDF forms for new text boxes, checkboxes and dropdowns. Give each field a unique name and select its page. Left and top positions, width and height are measured in millimetres from the page’s top-left. The current form creator needs unrotated pages with a zero page origin; resize or flatten a copy first if the tool reports an unsupported page geometry.
Choose a signature or a static result
The separate Sign PDF tool places a drawn signature as a visual image; it does not provide certificate-based signing or identity verification. Flatten PDF bakes visible fields and annotations into image-based pages. That removes interactivity and selectable text, so keep an interactive copy if you need to revise the values later.