PDF权限设置
设置文档元信息与打印/复制权限标记。
关于「PDF权限设置」
它属于「PDF 处理」分类：合并、拆分、加水印等常见 PDF 操作，文件不上传。
完全免费、无需注册；所有处理都在浏览器本地完成，文件不会上传到任何服务器。
相关关键词：PDF权限设置、PDF 处理、加密、权限、保护、在线工具、免费
如何使用「PDF权限设置」
- 打开工具：打开「PDF权限设置」页面，无需注册、无需安装任何软件。
- 准备输入：准备好要处理的内容或文件：文本可直接粘贴，文件可拖入页面（本工具属于「PDF 处理」）。
- 填入内容：把内容粘贴进输入框，或把文件拖入页面；也可以点击「示例」先填入样例数据试一下。
- 设置选项并处理：按需调整页面上的选项，然后点击处理 / 转换 / 生成按钮。
- 获取结果：处理完全在浏览器本地完成，结果可直接复制或下载，文件不会上传到任何服务器。
常见问题
- 为什么没有设置打开密码？
- 为兼容与离线可用，本工具仅设置权限标记（owner 口令在工具内固定），不强制打开密码。
- 权限真的无法绕过吗？
- PDF 权限标记属于“软限制”，专业工具可移除；正式保密请使用专业加密方案。
PDF Permission Setter (English)
Set document metadata and print/copy permission flags.
Belongs to “PDF Tools”: Merge, split, watermark and other common PDF operations — no upload.
Free, no sign-up; everything runs locally in your browser and files are never uploaded.
Keywords: PDF Permission Setter, PDF Tools, encrypt, permission, protect, online tool, free
How to use it
- Open the tool：Open the “PDF Permission Setter” page — no sign-up and nothing to install.
- Prepare the input：Prepare the content or file to process: paste text or drop a file onto the page (this tool belongs to “PDF Tools”).
- Provide the input：Paste your content into the input box or drop a file onto the page; you can also click “Sample” to try example data first.
- Adjust options and run：Adjust the options if needed, then click the process / convert / generate button.
- Get the result：Everything runs locally in your browser; copy or download the result — your files are never uploaded.
FAQ
- Why no open password?
- For compatibility and offline use, only permission flags are set (fixed owner password); no forced open password.
- Are permissions truly un-bypassable?
- PDF permission flags are "soft limits" removable by pro tools; use real encryption for true secrecy.
More tools in PDF Tools
- Merge PDF — Merge multiple PDFs into one in order.
- Split PDF — Split by page range or export page by page.
- Remove PDF Pages — Deselect pages and export a new file.
- Rotate PDF — Rotate 90/180/270 degrees overall or per page.
- Add PDF Page Numbers — Add page numbers with custom position and style.
- PDF Watermark — Overlay a tilted text watermark on every page.
- Scale PDF — Scale pages by ratio or target paper size.
- Crop PDF — Set margins to trim excess white space.
- PDF to Images — Render each page as PNG/JPG and pack them.
- Images to PDF — Combine multiple images into one PDF in order.
- Extract PDF Text — Extract selectable text and export it.
- Extract PDF Images — Export embedded bitmap resources from a PDF.
- PDF Info Viewer — View pages, size, title and other metadata.