FastHan / PDF Tools / Fill PDF Forms Online Free
FILL PDF FORMS
Fill PDF Forms Online Free
Type into a PDF form — text fields, checkboxes, dropdowns.
100% private — processed in your browser
Your files are processed locally in your browser with JavaScript. They are never uploaded to a server. You can verify this yourself: open your browser DevTools, go to the Network tab, and watch — no file data leaves your device.
How to fill a PDF form
A proper PDF form has real fields: boxes you can click into and type in, checkboxes you can tick, dropdowns you can pick from. This tool reads those fields, lists them by name, and lets you fill them in right here — no printing, no handwriting, no scanning the page back in. The downloaded file keeps the fields editable, so you (or the recipient) can still change an answer afterwards.
This only works on PDFs that actually contain form fields. A scanned form is just a picture of a form: it looks like a form, but there are no fields inside it, and no tool can type into a picture. If the tool tells you there are no fields, the file is a scan — you would need the original fillable version, or the Fill Forms tool cannot help with that file.
After filling, the values are stored in the fields and shown properly in any PDF reader. If the answers must never change again — a submitted application, a signed form — use the Flatten PDF tool afterwards to bake them into the page permanently.
Everything runs in your browser, so the PDF never leaves your device. There is no daily limit.
How to use this tool
- 1Drop a PDF form onto the page.
- 2Fill in the fields shown — text, checkboxes, dropdowns.
- 3Press Fill form and download the filled PDF.
Frequently asked questions
Why does the tool say my PDF has no form fields?
The file is probably a scan or an image-only PDF: a picture of a form, with no real fields inside. No tool can type into a picture. You need the original fillable version of the form.
Can the recipient still change my answers?
Yes — the fields stay editable in the downloaded file. To lock the answers in place, run the result through the Flatten PDF tool.
Which field types are supported?
Text fields, checkboxes, dropdowns, and choice (radio) fields. Buttons and signature fields are listed but cannot be filled here.
Are my files uploaded anywhere?
No. Filling runs entirely in your browser. Your PDF never leaves your device.