如何在Mac上安全清除PDF元数据与作者隐藏信息
使用 File Acture 无需上传文件，即可在本地安全抹除 PDF 文档的所有元数据与作者隐私标签。
更新于 2026年11月10日阅读约 4 分钟
File Acture 团队
Every time you export a contract, brief, or resume to PDF, the document embeds metadata—including your user name, operating system, software version, creation timestamp, and edit revisions.
Sending documents with unscrubbed metadata poses privacy and compliance risks. Here is how to strip hidden PDF properties locally on your Mac.
Why online metadata strippers are a privacy risk
Many free PDF tools require uploading documents to remote servers. If you are handling non-disclosure agreements, legal filings, or client records, third-party uploads can violate privacy regulations like GDPR.
Processing files locally ensures your confidential text and signatures never touch the internet.
How to strip metadata from a PDF on Mac
- 1
Open File Acture and select Remove Metadata
Launch File Acture on your Mac and choose the Remove Metadata tool.
- 2
Drop your PDF files into the list
Add single documents or drag an entire folder of PDFs into the app.
- 3
Click Remove Metadata to save clean copies
File Acture instantly strips all author and software tags locally.
在本地安全清除 PDF 隐藏元数据与标签。
免费试用 · 在你的设备上运行
常见问题
Does stripping PDF metadata change the visible layout?
No. The visible page content, vector graphics, fonts, and text remain 100% identical; only hidden document properties are removed.
Can I remove metadata from password-protected PDFs?
You must first unlock the PDF with its permissions password before removing document properties.
Does Preview remove all PDF metadata on Mac?
Preview allows editing some basic inspector fields, but it does not completely strip deep XMP streams, software tags, or editing history.
Are my files uploaded anywhere during processing?
No. File Acture runs entirely locally on your processor and never transmits your documents over the network.