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扁平化PDF

將 PDF 檔案的互動式表單欄位和註解扁平化為靜態頁面內容，使其無法再被修改。您的檔案永遠不會離開您的裝置——所有處理都在您的瀏覽器中本地進行。

設計即隱私
您的檔案永遠不會離開您的裝置。所有處理都在瀏覽器中本地進行 — 無上傳、無伺服器。

將 PDF 拖放至此處

或點擊選擇檔案

您的檔案永遠不會離開您的裝置。

Converts interactive form fields and annotations into static page content so they can no longer be edited.

Flatten PDF converts interactive form fields and annotations into static page content so they can no longer be edited or filled. This locks in form data, prevents further edits, and ensures the document renders identically in all viewers. Flattening runs entirely in your browser via qpdf-wasm — your file never leaves your device.

運作方式

如何使用 扁平化PDF

  1. 1
    Drop your PDF. Drag and drop a PDF with form fields or annotations onto the drop zone, or click to choose a file from your device.
  2. 2
    Click Run Flatten PDF. The tool converts interactive form fields and annotations into static page content locally in a Web Worker using qpdf-wasm. Your file never leaves your device.
  3. 3
    Download the flattened PDF. The flattened PDF is offered as a download. Form fields and annotations are now baked into the page content.

功能

此工具的用途

  • Flattens interactive form fields into page content
  • Bakes annotations into the page content stream
  • Prevents further editing of form data
  • No upload — runs entirely in your browser

限制

注意事項

  • Flattening is irreversible — form fields cannot be made interactive again
  • Form field values are preserved but the fields can no longer be edited
  • Some complex annotations may render slightly differently after flattening

常見問題

常見問題

Is my file uploaded anywhere?

No. Flattening happens entirely in your browser using a Web Worker and qpdf-wasm. Your file never leaves your device.

What does flattening do?

Flattening converts interactive form fields and annotations into static page content. The visual appearance is preserved, but the fields can no longer be edited or filled. This is useful for locking in form data before sharing.

Can I undo flattening?

No. Flattening is irreversible — once form fields are baked into the page content, they cannot be made interactive again. Keep a copy of the original if you may need to edit the form later.

Will the flattened PDF look the same?

The visual appearance is preserved. Form field values and annotations render the same way — they are just no longer interactive. In rare cases, complex annotations may render slightly differently.