Fill form
Detect AcroForm fields and fill them in your browser.
Private workspace
No file uploaded About Fill form
Reach for this when a PDF already has interactive form fields and you want to type into them without printing, signing by hand, or scanning. It reads the document's AcroForm fields, so it handles text boxes, checkboxes, radio buttons, and dropdowns, and gives you a filled PDF back. One honest limit: it only works on PDFs that genuinely contain form fields. A flat scan of a paper form has no fields to detect, so there is nothing here to fill. Everything happens in your browser, on the file you opened.
How to fill form
1
Add your file
Drop it in or click to choose. It stays on your device.
2
Set options
Tweak the settings, or just use the sensible defaults.
3
Download the result
One click. It was built right here, in your browser.
Why Unfleece vs fleeceware
Unfleece
- Runs in your browser — no file upload
- Free, no account, no card
- Open source (AGPL-3.0)
- No file-size paywall
Typical fleeceware site
- Uploads your file to a server
- $1 trial → ~$50 / week
- Closed and opaque
- Locks results behind pay
Frequently asked
What kinds of form fields can it fill?
It fills the standard AcroForm field types: text boxes, checkboxes, radio buttons, and dropdowns. You type or toggle each detected field, then download the filled PDF.
Why doesn't it work on my scanned form?
A scanned or flattened PDF has no interactive form fields to detect, so there is nothing for this tool to fill. It only works on PDFs that actually contain AcroForm fields, not a flat image of a paper form.
Can the filled fields still be edited afterward?
Yes, the output keeps the fields interactive, so the values you entered can be changed later in any PDF viewer. If you want them locked into the page so they can't be edited, use the Flatten tool afterward.
Are my files uploaded anywhere?
No. The detection and filling run entirely in your browser, so your PDF never leaves your device. You can confirm it by opening your browser's Network tab and watching for no upload.