Add Checkbox

Add AcroForm checkboxes to an existing PDF — for adding tickable confirmations, terms-acceptance, or multi-select inputs.

Your files never leave your browser. All processing happens on your device — nothing is uploaded.

1. Upload your file

How does the Add Checkbox work?

Add AcroForm checkboxes to an existing PDF. Each checkbox line specifies position, size, internal field name, and the label drawn to the right of the box. Useful for terms-acceptance pages, opt-in confirmations, multi-select agreement forms, or annotation systems where the recipient should mark items they reviewed. The user ticks boxes in any PDF reader; values come back true/false through Extract Form Data to CSV.

🔒 Security & Privacy

All processing happens on your device. Your files never leave your browser, never touch our servers, and are not stored anywhere. Close the tab and the file is gone.

📱 Use it on any device

Works in any modern browser — Mac, Windows, Linux, iPhone, Android, and tablets. No installation, no app to download. Just open the page and start.

⚡ Quick & easy

Drag, drop, click. Most files process in seconds, not minutes. No watermarks added to your output, no per-day limits, and the tool always shows the result before asking you to download.

🎁 Always free, no signup

Free to use, every time. No account creation, no email required, no “trial” that converts to a paid plan. We make money from ads so you don’t have to pay.

Frequently asked

Not in v1 — boxes are unchecked when added. Pre-checking requires a follow-up Form Fill pass with "fieldName=true" lines.

For heavier PDF workflows

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