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PixTrimIO
PDF

Flatten PDF

Convert form fields and annotations into static content.

Upload a PDF with form fields or annotations to flatten.
Flattening preserves the visual appearance of filled forms while removing interactivity.

PixTrimIO keeps PDF and image workflows fast, privacy-friendly, and browser-based. Privacy-first PDF and image tools that run entirely in your browser. Compress, merge, convert, crop, OCR, and edit files online for free without uploading.

Frequently asked questions

What does flattening a PDF do?

Flattening merges interactive form fields and annotations into the static page content, making them non-editable.

Is my PDF uploaded?

No. Flattening runs securely in your browser without uploading.

When should I flatten a PDF?

Flatten before sharing a form to prevent recipients from editing the filled values, or before printing to ensure all annotations are visible.

How to flatten a PDF online for free

Convert PDF form fields and annotations into static content securely in your browser without uploading.

  1. Upload your PDF — Click or drag and drop the PDF.
  2. Flatten — Click Flatten PDF. The tool merges all layers into static content.
  3. Download — Download the flattened PDF.
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