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Flatten PDF Forms & Layers

Tamper-Proof Batch Processing

Interactive PDFs with form fields, checkboxes, or digital signatures allow recipients to alter the data after you've filled them. A malicious party could change a "Yes" to a "No" or modify financial figures in a submitted form.

Flattening permanently merges all interactive elements — form fields, annotations, and layers — into static, non-editable page content. The result looks identical but cannot be tampered with.

  • 1Upload your interactive PDF forms.
  • 2The engine renders every page to a high-quality static image.
  • 3Form fields, checkboxes, and annotations are permanently merged.
  • 4Signature fields are locked and cannot be removed or re-signed.
  • 5The flat, tamper-proof PDF is returned to you.
PDF (with formsannotationslayers)