Flatten PDF
Flatten PDF files online with ProPDF. Merge layers, lock form fields, and finish your document instantly. It's free, fast, and secure.
- From Device
- From URL
Or drag and drop files
ProPDF makes it easy to flatten a PDF online. Whether you need to merge layers, lock form fields, finalize signatures, or ensure your document displays correctly on all devices, our free PDF flattener gives you quick, reliable results. Upload your file, click to flatten it, and download a fully flattened PDF in seconds.
- ✓Encrypted transfers
- ✓Auto file deletion
- ✓No watermarks
- ✓Works on all devices
Why Choose ProPDF Flatten PDF Tool?
Fast PDF Flattening
ProPDF flattens PDF files in seconds. Form fields, comments, text boxes, and signatures merge into one non-editable layer. It’s the fastest way to flatten a PDF online without installing any software.
Flatten PDF Free
You can flatten PDFs online for free with no signup required. Upload your file, set your options, and download your flattened PDF instantly.
High Quality Output
Flattening keeps your document looking as intended. All text, images, signatures, and notes remain clear and consistent across devices and printers.
Secure and Private
Your documents stay protected at all times. ProPDF encrypts every upload and automatically deletes files after processing. We never store or view your PDFs.
Flatten PDF Online Without Software
You can flatten a PDF right in your browser. ProPDF turns interactive elements into a single permanent layer, making your file non-editable and ready to share.
Works on Any Device
ProPDF runs smoothly on desktop, tablet, and mobile. Flatten PDFs from anywhere and easily finalize your documents.
How to Flatten a PDF Using ProPDF
Upload your PDF files
Choose optional compression.
Click Flatten PDF
Download your flattened PDFs
Everything You Can Do With ProPDF Flatten PDF Tool
- ✓Flatten PDF files online
- ✓Merge all elements into one layer
- ✓Lock form fields and stop editing
- ✓Finalize digital signatures
- ✓Ensure consistent display across devices
- ✓Prepare PDFs for printing and sharing
- ✓Flatten PDFs for free without software
- ✓Batch flatten multiple documents
- ✓Save flattened PDFs directly to cloud storage
Your Privacy, Our Priority
We take security seriously. All uploads are encrypted, processed safely, and removed from our servers shortly after completion. Your documents remain private, and ProPDF never stores or views them for any reason.
Secure Software Development
Security is built into every step of our development process. Regular reviews and checks help us maintain a safe and stable platform.
File Deletion Policy
Your files are automatically deleted a few hours after processing. Nothing is stored, reused, or kept on our servers.
Isolated File Processing
Each file is handled in its own secure environment, keeping your documents private and separated from all other tasks.
SSL/TLS Encryption
All uploads, downloads, and user actions are protected with SSL/TLS encryption, ensuring a fully secure connection.
Secured Data Centers
ProPDF runs on ISO-certified data centers with 24/7 monitoring, advanced firewalls, and strong physical and network security.
User Activity Monitoring
Our systems track unusual behavior using automated alerts and activity logs to protect the platform and ensure safe usage.
Flatten PDF FAQ
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Ready to flatten your PDF? Upload your file and finalize your document in seconds.
Developed by the team behindFreeConvert, trusted by millions worldwide, ProPDF delivers the same secure, dependable experience for handling your documents.