Flatten PDF

Convert your PDF into a static, non-editable document while preserving its visual appearance.

Form fields, annotations, comments, signatures, stamps, and layers become permanently embedded into the page.

Click to upload or drag and drop a PDF

Everything runs locally in your browser

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Best online tool to flatten PDFs

Flattening converts a layered, interactive PDF into a single static document that keeps the same visual appearance while removing editable overlays.

It is a reliable way to prepare forms, signed documents, annotated pages, and layered layouts for sharing, archiving, or final delivery.

Prevent tampering

Flattened content is embedded into the page, so form fields, annotations, and other interactive items are no longer movable.

Print exactly what you see

Because the page is rendered and rebuilt, the finished PDF prints with the same visual arrangement shown on screen.

Work anywhere

The tool runs in your browser, so it works on Mac, Windows, Linux, or mobile without installing software.

How to flatten a PDF for free

  1. 1Upload the PDF you want to flatten.
  2. 2Choose a render scale if you want sharper flattened output.
  3. 3Click Flatten PDF, then download the finished file when the button switches to download mode.

Flatten any PDF for accuracy and integrity

Reduce file complexity

A flattened document removes the moving parts that make a PDF harder to manage across different systems.

Edit before you flatten

If you want to adjust the PDF first, do that before flattening, because the flattened result is meant to be final.

Strengthen consistency

Flattened pages look the same whether they are opened, printed, or shared on another device.

Keep everything local

All processing happens in your browser, so the file stays on your device while the tool works.

Frequently Asked Questions

Does this preserve selectable PDF text?

No. This browser version rasterizes each page and rebuilds the PDF from the rendered page images. That is the practical way to flatten form fields, annotations, and other interactive content in the browser.

Does this upload my PDF?

No. Processing happens locally in your browser using PDF.js, canvas, and pdf-lib.

Why is the output file larger?

The flattened PDF is rebuilt from page images. Higher render scale creates sharper output, but it can also increase the file size.

Can it fix sideways pages?

This tool is for flattening, not rotation. Use a rotate PDF tool first for pages turned 90, 180, or 270.

What documents work best?

It works best on forms, signed documents, annotated PDFs, and layered pages where you want the visible result to stay fixed and consistent.

Can each page be flattened at a different quality?

No. The render scale applies to the full document, which keeps the output consistent across all pages.

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