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PDF 元数据清除器

清除 PDF 元数据

在浏览器中运行 · 无需上传

此工具及本页说明目前仍为英文。功能完全相同：一切都在你的浏览器中运行。

Drag & drop a PDF here

or

One PDF file

Your files stay on your device. Nothing is uploaded.

  • 任何内容都不会离开你的设备
  • 服务器不限制文件大小
  • 无需注册，无水印
  • 免费

How to remove metadata from a PDF

  1. Choose a PDF.
  2. Check the list of metadata found.
  3. Press Remove metadata and download the clean PDF.

What is removed

  • Document properties: title, author, subject, keywords, creating application, PDF producer, creation and modification dates.
  • XMP metadata streams, on the document and on individual objects.
  • Private application data (PieceInfo) and the document ID.
  • Names and dates on comments and annotations (the comments themselves are kept).
  • Unused objects, such as older copies of the properties that earlier edits left behind.

What is not removed

  • The visible content: text, images, links, form fields, comments and attachments are kept.
  • Images inside the PDF are not changed, so photos placed in it may still carry their own camera metadata.
  • Password-protected (encrypted) PDFs cannot be cleaned. Remove the password first.

Is my PDF uploaded?

No. Your PDF is processed locally in your browser and never leaves your device. This site has no upload feature, and its security policy blocks the page from uploading anything.

常见问题

Will the PDF look different?

No. Only metadata is removed; pages are copied unchanged.

How can I check the result?

Open the cleaned file in the PDF Metadata Viewer. The tool also checks the saved file for leftover copies of the old values and warns you if any are found.

Is my PDF uploaded?

No. Cleaning happens in your browser.