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Flatten PDF

Bake interactive form fields, checkboxes, widgets, and annotations into permanent background content. Files are processed in memory and not stored.

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How to use this tool

  1. Upload or drag and drop your fillable PDF into the dropzone (up to 50 MB, 1000 pages).

  2. Review file details and the summary of non-editable conversion.

  3. Click Flatten PDF to bake all interactive form widgets and annotations into static graphics.

  4. Download your locked, read-only PDF or chain it into Compress or Protect tools.

  5. Add a signature with Sign PDF or restrict the flattened copy with Protect PDF.

Frequently asked questions

Quick answers about file privacy, processing modes, formats, and device support.

Flattening merges interactive elements—such as form text fields, checkboxes, radio buttons, dropdown lists, signatures, and highlight annotations—directly into the page content stream. Once flattened, the fields can no longer be edited or changed by any PDF reader.
No. All values, text, and annotations retain their exact visual appearance, fonts, colors, and positioning. They are simply converted from interactive form widgets to static vector graphics.
No. Flattening permanently removes the underlying AcroForm and annotation dictionaries. We recommend keeping a backup of your original fillable PDF if you need to edit field responses later.
Flattening ensures that your document renders consistently across all devices, mobile PDF viewers, web browsers, and printers. It also prevents unauthorized parties from altering the information you filled in.
No. Files are uploaded securely to the Elixuvo API, processed entirely in memory for the duration of the request, and instantly discarded. Nothing is written to permanent storage.

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