Flatten PDF Forms

Flatten PDF form fields and annotations into static pages online. Lock form data and prevent unauthorized edits. 100% private browser tool.

About this tool

Flatten PDF tool merges interactive AcroForm text fields, checkboxes, and annotations into the immutable background page layer.

How to use

  1. Upload your interactive PDF form or annotated document.
  2. Click Flatten & Download PDF to lock all editable fields.
  3. Download the static, tamper-resistant PDF file.

FAQ

Why should I flatten a PDF?

Flattening prevents recipients from altering filled form values, signatures, or notes.

Does flattening reduce file size?

Often yes, as complex interactive form structures and annotation trees are removed.

What does Flatten PDF Forms do?

Flatten PDF tool merges interactive AcroForm text fields, checkboxes, and annotations into the immutable background page layer.

How do I use Flatten PDF Forms?

Open the Flatten PDF Forms tool, then upload your interactive PDF form or annotated document.

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