Fill PDF form
Fill in a PDF form’s fields and lock them if you want — nothing uploaded.
- Zero-transmission processing
- No watermark
- Limited daily trial
- Unlimited on Pro
Drop your PDFs here
or pick them from your device
Your files are never transmitted. Nothing is uploaded.
Good to know
- Accepts
- Files at once
- One at a time
- Transmission
- None — nothing is uploaded.
Chain it
Run this tool and the next one back to back — nothing to download in between.
How to do it
- 1
Add your file
Add a PDF that already has form fields. If yours does not — a printed form someone scanned — use Create fillable PDF first to add the fields, then come back here.
- 2
Set it up the way you want
The fields are read out of the document, so you type into the actual boxes the form defines rather than placing text by eye. Tick the flatten option if you want the values locked so the recipient cannot change them.
- 3
Download the result
Download the completed form. Without flattening it stays editable; with flattening the values become part of the page.
Questions about Fill PDF form
- It says there are no form fields. What now?
- Then the file has none — it is a flat document, most often a scan of a printed form. Create fillable PDF lets you draw the boxes yourself and gives you back a real form.
- Should I flatten it?
- Flatten if you are sending it back as final and do not want the values altered. Leave it unflattened if someone else still has to add their part, because flattening locks the fields for everyone.
- Does my filled-in data get uploaded?
- No. Whatever you type — salary, address, medical history — is written straight into the file and goes nowhere else.