PDF Tool
Fill PDF Forms
Fill in a PDF that contains form fields directly in your browser. The tool detects text fields, checkboxes, and dropdowns, lets you complete them, and can flatten the result so the answers are locked in. Nothing is uploaded.
Drop files here or choose files
Accepted: PDF · Recommended maximum: 50 MB
Load a PDF with form fields to fill them in below.
Preview
✓
Your file is ready
100% private — your files are processed in your browser and never uploaded anywhere.
Simple private workflow
How do I fill a PDF form without uploading it?
- 01
Choose a PDF that has fillable form fields.
- 02
Complete the detected text fields, checkboxes, and dropdowns.
- 03
Optionally flatten the fields, then download the completed PDF created locally.
Questions answered
Fill PDF FAQ
Is my PDF form uploaded to fill it?
No. Form fields are read and completed with browser-side JavaScript, so the document stays on your device and is never uploaded.
What if my PDF has no form fields?
The tool will tell you when a PDF has no interactive fields. Flat PDFs without form fields cannot be filled this way, but you can still add a signature with the Sign PDF tool.
What does flattening do?
Flattening merges your answers into the page so the fields can no longer be edited, which is useful before sharing or archiving the completed form.
Is It Safe to Use Online File Converters? What to Look For
Visit the blog for practical guides on file formats, PDFs, and browser-based conversion.