Desktop Feature
Flatten PDF Forms & Annotations
Make form fields, signatures, and annotations permanent - locking in your data so it can't be accidentally changed.
Permanent Results
Once flattened, form data becomes part of the page content itself
Lock In Your PDF Data Today
Get PDF flattening with our desktop version - one-time purchase, lifetime access.
Get PDF Compresso - £24.99 (one-time)What Gets Flattened
- Form Fields - Text boxes, checkboxes, and dropdowns become part of the page
- Annotations - Comments and markup are merged into the content
- Interactive Elements - Signatures and other interactive elements become static
When to Use Flatten
- Before Sending Filled Forms - Preserve the data so it can't be accidentally changed
- Create a Final Version - Produce a version that can't be edited further
- Reduce File Size - Remove interactive elements to shrink the file
- Before Printing - Ensure accurate, consistent output
Frequently Asked Questions
What does flattening a PDF do?
Flattening merges form fields, annotations, and interactive elements into the page content itself, making the data permanent and preventing further editing.
Can I undo flattening?
No, flattening is a one-way operation on the output file. Always keep a copy of your original, editable PDF before flattening.
Does flattening change how my PDF looks?
No, the visual appearance stays the same - only the underlying interactivity is removed.