Flatten PDF forms

Convert interactive form fields into permanent page content - the filled-in values become part of the page, not editable fields.

1 · File

Flattening is normally irreversible - once saved, the fields can no longer be edited. It may also invalidate an existing digital signature on the document, and XFA or otherwise unsupported form types may not flatten correctly. The visual appearance is preserved as closely as the underlying library supports. Processed in memory and never retained after the response.


What this does

Detects every interactive form field on the document (with field count and types shown before you commit) and flattens them - the currently filled-in values become ordinary page content rather than editable form fields.

Read before you flatten

Flattening is normally irreversible once you save the result. It may invalidate an existing digital signature on the document. XFA forms or other unsupported form types may not flatten correctly - check the result. Visual appearance is preserved as closely as the underlying library supports, but is not guaranteed pixel-identical in every case.

How it works

Processed on the server with Syncfusion.Pdf.Net.Core, in memory only - nothing is written to disk or retained after the response.

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