Flatten PDF
Permanently bake interactive form fields, annotations, and comments into the static page content of a PDF. This produces a clean, non-editable version suitable for archiving or distribution. Processed entirely on your self-hosted SnapOtter server.
Features
- Bakes form field values into static page content
- Flattens annotations, comments, and markup layers
- Produces a clean non-interactive PDF for archival
- Preserves visual appearance of all flattened elements
- Reduces file complexity and potential rendering issues
What you can do
- Archiving completed tax forms with filled values permanently embedded
- Preparing signed contracts for long-term storage without editable fields
- Removing interactive annotations before sharing review documents externally
- Flattening form submissions before batch printing
Self-hosted. Your files never leave your network.
SnapOtter runs entirely on your own infrastructure. Files processed with Flatten PDF are never uploaded to third-party servers. Deploy a single Docker container and process files with full privacy, no watermarks, and no usage limits. Open source under AGPL-3.0.
Frequently asked questions
- What does flattening a PDF mean?
- Flattening converts interactive elements like form fields and annotations into static page content that cannot be edited. SnapOtter handles this locally on your server so your filled forms stay private.
- Can I undo flattening after it is applied?
- No, flattening is permanent. The original interactive elements are baked into the page. We recommend keeping your original file as a backup. All processing stays on your own infrastructure.
- Is this safe for sensitive form data?
- Yes. SnapOtter processes the PDF entirely on your self-hosted instance. Form data and annotations are never sent to any external service during flattening.
Ready to try Flatten PDF?
Deploy SnapOtter in under a minute. All 157 tools included. Open source and free forever.