SonuPDF

Flatten PDF

Remove interactive elements and flatten PDF content for final, non-editable documents.

Drag & drop files here, or click to select

Flattening Options

Preserve text: Maintains searchable text while flattening interactive elements.

Full flatten: Converts everything to images - completely non-interactive but larger file size.

When to flatten: Before final distribution, archival storage, preventing form tampering, or ensuring consistent appearance across viewers.
Note: Flattening is irreversible. Keep original files if you need to maintain interactive functionality.