Security
How to Flatten a PDF (And Why You Need To)
Lock interactive forms and layered graphics into a single, uneditable image layer for safe sharing.
By The Lazy PDF TeamAugust 20, 20261 min read
The danger of interactive forms
When you fill out an interactive PDF form (like a tax document) and email it, the form fields often remain active. The recipient could accidentally alter your answers.
Flattening secures the data
Flattening a PDF merges all form fields, annotations, and visual layers into one flat background layer. This makes the data permanent. You can use our Edit PDF tools to flatten your documents locally, ensuring nobody modifies your signed agreements after the fact.
#flatten pdf#security#forms