Fill PDF Forms
Fill in interactive form fields.
Fill interactive PDF forms — text fields, checkboxes, radio buttons and dropdowns — and download the completed document. Fields are read straight from your file.
Your files are processed locally in your browser. Nothing is uploaded to a server, ever.
Tip
Drop your file here or click to browse. Everything is processed on this device — nothing is uploaded.
Quick answers
- What does this tool do?
- Fill in interactive form fields. Fill interactive PDF forms — text fields, checkboxes, radio buttons and dropdowns — and download the completed document. Fields are read straight from your file..
- Is it free?
- Yes — free and unlimited, with no account required and no watermark on the result.
- What files are supported?
- PDF files, up to 100 MB each.
- Where is my file processed?
- Entirely in your browser. Your file never leaves your device — nothing is uploaded to a server.
- What are the limitations?
- Only interactive form fields can be filled — scanned or flattened forms need OCR or manual annotation. Read-only fields are skipped.
- What happens if processing fails?
- You get a clear message explaining what went wrong and how to fix it (try another file, check the format, or start over). Your original file is never touched.
How to Fill PDF Forms
- Upload a PDF with form fields.
- The fields are detected and shown automatically.
- Fill in each field.
- Click "Process" and download the completed form.
Frequently asked questions
Common problems and fixes
- My signature or drawing looks faint
Why: thin pen input or fast strokes produce low-contrast ink on small canvases.
Fix: draw larger than needed, use a thicker stroke, or type a signature and pick a heavier font style.
- My changes seem to have disappeared
Why: the original file was opened instead of the new download — the tool never modifies your original on disk.
Fix: look for the freshly downloaded file and use that as your new version.
- Added text does not match the document font
Why: embedded subset fonts cannot always be reproduced, so the closest standard font is offered.
Fix: pick the nearest match from the font options, or accept a slight typeface difference.
Who uses Fill PDF Forms?
- Anyone signing from home — contracts and forms signed on screen — files up to 100 MB, drawn, typed or uploaded as an image.
- People filling non-fillable forms — adding text on top of flat PDFs that were never designed as forms.
- Reviewers marking drafts — stamps, dates and notes before a document circulates for approval.