PDF tools · Free browser tool
Fill and Flatten PDF Forms
Detect supported PDF form fields, fill them locally, and download either an editable form copy or a flattened copy for consistent display.
Phone and computer friendly
No document upload
Free to use
Private workspace
Complete ordinary PDF forms without submitting their contents to a form-processing website.
Tab memory only
New output file
Review before sharing
Your file is processed by code already loaded in this tab. Your device, browser, extensions, downloads, and any later sharing remain part of the trust boundary.
Ready. Choose a file to begin.
Choose a file to begin
Complete ordinary PDF forms without submitting their contents to a form-processing website.
Created on this device
Result ready
Open the output and review every important page before replacing or sharing a file.
What this tool does
A focused PDF job, with a visible boundary.
Complete ordinary PDF forms without submitting their contents to a form-processing website.
Editable or flattened output
Local field-value handling
Know the limits
Local does not mean unlimited.
Browser processing avoids an upload workflow, but available memory, PDF structure, digital signatures, and the settings you select still matter.
- XFA and unusual scripted forms are not supported.
- Flattening makes fields non-editable and can invalidate signatures.
- The tool cannot validate legal or factual accuracy of entered information.
Four local steps
How to use pdf form filler.
- 01
Choose a PDF containing supported form fields.
- 02
Complete the generated field controls.
- 03
Choose editable or flattened output.
- 04
Review the completed document before submitting it elsewhere.
Clear answers
PDF form filler questions.
Are entered values transmitted?
No. Field values remain in the current browser tab and are written into the downloaded copy locally.
What does flattening do?
It bakes field appearances into page content so they display consistently but can no longer be edited as form controls.
Does this add a legal signature?
No. Filling a form is not the same as applying a cryptographic or legally valid digital signature.