Flatten PDF
Flatten PDF is a free, browser-based PDF utility. Rasterize interactive forms, digital signatures, and comment layers into the background to prevent edits. All processing happens locally in your browser, so private files never leave your device.
At a glance
- Tool: Flatten PDF
- Category: PDF utility
- Price: Free forever — no premium tier, no watermark
- Account: Not required
- Processing: On-device (WebAssembly / HTML5), zero uploads
- Privacy: Files never leave your device
How to Use Flatten PDF:
Upload an interactive or layered PDF. The tool merges all annotations, form fields, and visual layers into a single, uneditable flattened document.
Key Features & Advantages:
- 100% Free with absolutely no credit card requirements
- No signup, registration, or email authentication ever needed
- Infinite conversions/calculations with no daily caps or throttling
- Blazing-fast client processing with high-performance algorithms
- Clean, eye-safe theme with full responsive layout controls
Frequently Asked Questions (FAQs):
Is the Flatten PDF tool free to use?
Yes. Flatten PDF on FreeConvertio is completely free, with no sign-up, watermark, or hidden fees.
Does Flatten PDF upload my file to a server?
No. Flatten PDF runs 100% inside your browser. Your file is processed locally on your device and is never uploaded anywhere, which keeps it private and secure.
Is there a file size limit for Flatten PDF?
Since Flatten PDF processes files entirely in your browser, the practical limit depends on your device's memory rather than a server-side cap. Most everyday files convert instantly.