Tool under construction. Launching March 20, 2026. Code will be open sourced under AGPL license. Current version is for testing purposes only.
Modufile
PDF ToolsFlatten PDF

Flatten PDF

Convert editable form fields into permanent static content.

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Info

Flattening a PDF merges form fields into the page content. This prevents further editing of the form data and ensures it prints correctly.

About Flatten PDF

Modufile's Flatten PDF tool converts interactive form fields in a PDF — such as text boxes, checkboxes, dropdowns, and radio buttons — into static page content. After flattening, the filled-in values become permanent, non-editable text embedded in the page. This is useful when you need to share a completed form and prevent further changes, fix display issues in certain viewers, or prepare forms for archival. The tool uses pdf-lib to merge AcroForm fields into the page content, and the entire process runs locally in your browser.

Tech Stack

pdf-libMerges interactive form fields (AcroForm) into static page content

Frequently Asked Questions