What does flattening a PDF do?

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

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.

PDF

PDFをフラット化

フォームや注釈を静的な内容に変換します。

クリックまたはドラッグ＆ドロップ

PDF with form fields or annotations

Upload a PDF with form fields or annotations to flatten.

Flattening preserves the visual appearance of filled forms while removing interactivity.

PixTrimIO は PDF と画像の作業を、速く・安全に・ブラウザ内で完結させます。 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.