Flatten a PDF

Freeze a document so nothing in it can be edited.

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Flattening renders every page to an image and rebuilds the PDF from those images. Form fields, annotations and selectable text stop existing — which is the point: it freezes a document so nothing in it can be edited, copied or extracted.

🔒 Never used for AI training: delete a document and it is gone from the server.
⚡ No watermarks: on any tool, including the free tier.
↩ Undo: step back through your last 10 edits.

How to flatten a PDF

  1. 1Open the PDF.
  2. 2Run Flatten.
  3. 3Every page becomes a fixed image.
  4. 4Download the flattened file.

Questions people ask

Will the text still be searchable?

No, and this is the trade. Flattening removes the text layer, so the file can no longer be searched or copied from. Run OCR afterwards if you need searchability back.

Is this the same as redacting?

No. Flattening makes everything unselectable; redacting deletes specific content. To remove sensitive text, redact first, then flatten if you want.

Does the file get bigger?

Usually yes, because images take more space than text. Compress afterwards if size matters.

Can I undo it?

Yes, before you download.

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