Flatten PDF Form Fields & Interactive Annotations
Flatten interactive form fields, checkboxes, and annotations into permanent, non-editable page content.
Drag & drop your file here
Accepts .pdf
Choose FileHow to Use Flatten PDF
- Upload fillable PDF.
- Flatten interactive form layers.
- Download read-only document.
Key Features & Security Standards
Client-Side & In-Memory Privacy
All computations, transformations, and string manipulations execute in your local browser memory or isolated ephemeral worker instances with zero permanent disk persistence.
Zero File or Data Retention
Your sensitive files, JWT keys, credentials, and code snippets are never shared, logged, or indexed. Data is automatically flushed as soon as your browser tab closes.
100% Free & Unlimited Usage
No credit cards, sign-ups, subscriptions, or watermarks. All Flatten PDF features are accessible without rate limitations or intrusive paywalls.
Frequently Asked Questions
Is Flatten PDF free to use?+
Yes, Flatten PDF is 100% free with no registration, usage limits, or hidden fees.
Are my files or data private?+
Yes. All processing executes in-memory or directly client-side in your web browser with zero persistent file storage.