PDF Form Filler
Upload a PDF with AcroForm fields, fill every text box, checkbox, radio, and dropdown in your browser, then download the completed PDF.
Upload PDF Form
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This PDF does not contain AcroForm fields. Only PDFs with interactive form fields can be filled.
How to use
- Upload a PDF with form fields
- Fill in text boxes, checkboxes, dropdowns
- Click Download to save the filled PDF
- Your file never leaves your browser
Form Fields
No PDF loadedUpload a PDF to see its fields
Supports text, checkbox, radio, and dropdown fields
Reading PDF fields...
Summary
Upload a PDF with AcroForm fields, fill every text box, checkbox, radio, and dropdown in your browser, then download the completed PDF.
How it works
- pdf-lib reads the AcroForm dictionary embedded in the PDF, enumerates all fields by type, and renders browser inputs for each. On download, pdf-lib writes the entered values back into the field annotations and saves the PDF bytes as a Blob for download.
Use cases
- Filling government or tax forms without printing.
- Completing job applications or registration forms.
- Populating contract templates or agreements.
- Filling out medical or insurance paperwork.
Frequently Asked Questions
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Last updated: 2026-05-29 ·
Reviewed by Nham Vu