1
Upload
Drop your PDF or browse to select one.
Make Any PDF Form Fillable.
Upload a form with unmapped text boxes, checkboxes, or radio buttons. Our AI detects every field and makes it fillable in seconds. Free. No signup.
Drag your PDF here
or click to browse · Max 10 MB · Up to 50 pages
Three steps. About a minute.
2
Review
Our AI finds every field. You confirm or edit.
3
Download
Get your fillable PDF back and share it.
What is Natafill?
Natafill is a free online tool that converts flat, non-interactive PDF forms into fully fillable PDFs. Many government, tax, and business forms are distributed as static PDFs with no interactive fields, so you end up printing, filling by hand, and scanning. Natafill uses AI to automatically detect every text box, checkbox, and radio button in your PDF, then generates a new fillable version you can complete on any device.
Unlike traditional PDF editors that require manual field placement, Natafill handles the heavy lifting. Upload your document, review the detected fields, make any adjustments, and download your fillable PDF. All in under a minute. No software to install, no account required.
Government & Tax Forms
IRS forms, visa applications, permits, and other official documents that ship as flat PDFs.
HR & Onboarding
Employee handbooks, W-4s, benefits enrollment, and intake forms your team needs to fill out.
Applications & Surveys
Rental applications, school enrollment, volunteer sign-ups, and any form that needs to be completed digitally.
Frequently asked questions
How do I make a PDF fillable?
Upload your PDF to Natafill. Our AI automatically detects every text box, checkbox, and radio button, then generates a fillable version you can download and share.
Is Natafill really free?
Yes. Natafill is completely free to use. There are no hidden fees, no paywalls, and no limits on the number of PDFs you can process.
Do I need to create an account?
No. You can upload and process PDFs without signing up. Creating a free Google account lets you remove the watermark from your downloaded PDFs.
What types of PDF forms does it support?
Natafill works with any flat PDF that has unmapped form fields: text boxes, checkboxes, and radio buttons. This includes government forms, tax documents, HR paperwork, applications, and more.
Are my documents secure?
Uploaded documents are processed on secure servers and automatically deleted after 24 hours. We do not read, share, or store the contents of your files.
Can I edit the detected fields before downloading?
Yes. After AI detection, you can review every field, change field types, rename labels, add or remove fields, and adjust positions before downloading your fillable PDF.