Flatten PDF
Make form fields, checkboxes, signatures, and annotations permanent and completely uneditable.
100% In-Browser 路 Form fields flattened locally without server upload
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Select a PDF to flatten
Drag and drop your PDF form or signed document here
Locks fillable fields and annotations so nobody can alter your answers or signature.
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What does flattening a PDF mean?
When you fill out a PDF form, add a signature, or make annotations, those elements exist as interactive layers on top of the original page. Flattening combines these interactive elements into the background layer so that:
1
Prevents Modification
Recipients cannot edit your entered text, checkboxes, or signature stamps.
2
Guarantees Printing
Ensures form entries and signatures print accurately on all printers and plotters.
3
Universal Viewing
Displays perfectly across all mobile PDF viewers, browsers, and operating systems.