--- title: "PDF Form Flatten Modifier" slug: "pdf-form-flatten-modifier-10" description: "Information about the PDF Form Flatten modifier." updated: 2026-10-07T10:23:05Z published: 2026-10-07T10:23:05Z canonical: "kb.lasernetgroup.com/pdf-form-flatten-modifier-10" --- > ## Documentation Index > Fetch the complete documentation index at: https://kb.lasernetgroup.com/llms.txt > Use this file to discover all available pages before exploring further. # PDF Form Flatten Modifier **Applies to:** Lasernet Core 10 This modifier is used to flatten a PDF document containing interactive elements such as text boxes, check boxes, combo boxes, etc. and lock it for changing values of such fields. ![](https://cdn.document360.io/c831ef63-c6b3-48ee-b443-3e33644e4e2e/Images/Setting/ln10-pdf-form-flatten-modifier-10-image-01.png) When you use the [forms](/v1/docs/pdf-form-filler-10) to add values to interactive fields in a PDF document and make this document either flatten or non-flatten to have different versions of it for sending them to different destinations, it is possible to apply this modifier on a specific stage of the flow by defining a corresponding criterion.