Create Fillable PDF Forms Online Free: Form Builder
Turn any PDF into an interactive form: drag text fields, checkboxes, dropdowns, and radio groups onto its pages.
Turn a static application, contract, or questionnaire into a form people can actually type into. Pick a field type, drag a rectangle where it belongs, rename it in the sidebar, and add options for dropdowns and radio groups. The download is a standard AcroForm PDF that works in Adobe Acrobat, Preview, browsers, and most other viewers.
How to Use It
- Create a fillable PDF form and wait for the local preview to load.
- Adjust the settings: Adjust the available settings and run the tool locally in your browser.
- Download the result: Download the processed file directly to your device.
Frequently Asked Questions
What field types can I add?
Single-line text fields, multiline text areas, checkboxes, dropdowns, and radio groups. Each one becomes a real interactive AcroForm field, not a drawn box, so recipients can type, tick, and pick values in their own PDF viewer.
Will the fields work in Adobe Acrobat and other viewers?
Yes. The tool writes standard AcroForm fields and pre-generates their appearances, so they show up and accept input in Acrobat, Preview, browser PDF viewers, and most mobile readers.
Can I edit form fields the PDF already has?
No. This tool adds new fields. Existing fields are kept untouched, and new field names automatically avoid clashing with them. To fill an existing form, use Fill PDF instead; to remove fields, use Sanitize PDF or Flatten PDF.
Is my PDF uploaded anywhere?
No. The whole builder runs in your browser using pdf.js and pdf-lib. For supported workflows, file contents are not uploaded for processing; site analytics and the assistant are separate.