Fill PDF Form
Fill any PDF form in your browser. Flatten and download.
Drop files here
or click to browse · paste from clipboard
Accepts .PDF · Up to 1,000 files
How it works
Drop your PDF form
Drag and drop, click to browse, or paste from clipboard. All AcroForm fields are detected automatically.
Fill in the fields
Text fields, checkboxes, radio buttons, and dropdowns are shown as editable inputs.
Flatten (optional)
Flattening locks your answers into the PDF, preventing further edits — recommended before sharing.
Download
Save the filled PDF directly to your device. No data leaves your browser.
Frequently asked questions
Flattening burns your answers into the page content and removes the interactive form fields. The result looks identical but the fields can no longer be edited in a PDF reader. This is the right choice for submitting or printing a completed form. If you need the recipient to be able to edit your answers, uncheck the flatten option.
Text fields, checkboxes, radio buttons, and dropdown lists. Signature fields are not supported — this tool fills data fields, not cryptographic signatures.
Password-protected PDFs cannot be filled here. Remove the password first using your PDF reader (File → Properties → Security, or similar), then use this tool.
No. Everything runs in your browser using the pdf-lib library. Your file never leaves your device. The form reading and filling both happen locally.
Filling adds text to form fields. Signing adds a cryptographic signature that proves the document has not been altered since signing. This tool fills form fields; for legal e-signatures you need a dedicated signing tool.