Fill PDF Forms Online — Free & Private
Fill interactive PDF forms (AcroForm) in your browser with full Unicode support, and flatten if needed. No upload.
🔒 Files are processed on your device — nothing is ever uploaded to a server
Open any fillable PDF, type into its real fields, tick its checkboxes, and save — with fonts embedded so your answers display correctly everywhere.
How it works
- Open the fillable PDF.
- Complete the fields — text, checkboxes, dropdowns.
- Save, optionally flattening the form.
Why MyPDF
- Truly private — Everything runs inside your browser. Your files are never uploaded, stored, or seen by anyone — unlike most online PDF sites.
- Free with no sign-up — No account, no daily limits on core tools, no watermarks added to your files.
- Fast — No upload/download round-trip to a server. Large files start processing instantly.
- Works everywhere — Any modern browser on Windows, Mac, Linux, Android, or iPhone. Installable as an app (PWA).
FAQ
The form has no fields — now what?
Use our Edit tool: it detects dotted fill-in lines automatically, or lets you type anywhere.
Is it safe for confidential documents?
Yes. Processing happens locally in your browser (client-side). You can even disconnect from the internet after the page loads and most tools keep working.
📖 Full guide: Fill and sign PDF documents online