查看元数据 · Metadata批量检查文件元数据

如何用 PDFnoted 批量查看PDF元数据（标题/作者/关键词）

场景：批量检查文件元数据 / Batch-check file metadata

你是否常收到几十份PDF却无法快速确认谁写的、什么主题？手动右键属性太慢，专业软件又太重。本文教你用 PDFnoted 在线工具，3分钟完成批量元数据提取——准确读取标题、作者、创建日期、关键字等核心属性，零门槛提升文档核查效率。

Do you often receive dozens of PDFs but struggle to quickly identify authors, topics, or creation dates? Right-clicking ‘Properties’ is slow; desktop software is overkill. This guide shows how to use PDFnoted to extract title, author, keywords, and more from multiple PDFs in under 3 minutes—no setup, no learning curve.

立即使用查看元数据 → Use Metadata →

1. 第一步：访问 PDFnoted 元数据工具页

打开浏览器，访问 PDFnoted 官网 → 点击顶部导航栏「Tools」→ 选择「View Metadata」。该页面专为批量元数据读取优化，界面简洁无广告，支持中文。

2. 第二步：拖拽或上传多个PDF文件

在元数据页面中央区域，直接拖入需检查的PDF文件（支持10个以内同时上传），或点击‘Choose Files’手动选取。PDFnoted 会自动解析每份文件的内置属性，包括标题（Title）、作者（Author）、主题（Subject）、关键字（Keywords）、创建时间（CreationDate）等。

3. 第三步：查看并导出结构化元数据结果

上传完成后，PDFnoted 以表格形式清晰列出每个文件的元数据字段。点击任意行可展开原始XMP/IDF信息；点击「Export as CSV」一键下载为Excel兼容表格，便于筛选作者、按关键词归类或审计文档合规性。

1. Step 1: Go to the PDFnoted Metadata Tool

Open your browser, go to the PDFnoted official site → Click ‘Tools’ in the top menu → Select ‘View Metadata’. This dedicated page is optimized for batch metadata reading—clean, ad-free, and fully bilingual.

2. Step 2: Upload Multiple PDFs via Drag & Drop

Drag and drop up to 10 PDF files into the central area—or click ‘Choose Files’ to browse. PDFnoted instantly parses embedded properties: Title, Author, Subject, Keywords, CreationDate, and more—no manual extraction needed.

3. Step 3: View & Export Structured Metadata Results

After upload, PDFnoted displays all metadata in a clean, sortable table. Click any row to view raw XMP/IDF details. Use ‘Export as CSV’ to download a ready-to-filter Excel file—for author audits, keyword tagging, or compliance checks.

小贴士：✅ 小贴士：检查前先重命名文件为‘项目名_作者_日期’格式，可与元数据交叉验证；⚠️ 避免上传含敏感信息的PDF——PDFnoted虽本地处理，但建议脱敏后再分析。

Tips: ✅ Pro tip: Rename files as ‘Project_Author_Date’ before checking—cross-verify with extracted metadata. ⚠️ Never upload sensitive PDFs: though PDFnoted processes locally, always de-identify first.

常见问题

FAQ

PDFnoted 能读取加密PDF的元数据吗？

不能。PDFnoted 仅支持未加密（无打开密码）的PDF。若文件被加密，需先用PDFnoted「Remove Password」工具解密，再查看元数据。

为什么某些PDF显示‘Unknown’作者或空标题？

这表示该PDF在生成时未填写元数据字段（如用截图转PDF、扫描件或老旧工具导出）。PDFnoted 如实反映原始信息，不猜测或填充缺失值。

批量处理是否收费？最大支持多少文件？

完全免费。单次最多支持10个PDF（总大小≤50MB），满足日常办公批量核查需求。无需注册，不上传至云端存储，所有解析均在浏览器内完成。

Can PDFnoted read metadata from password-protected PDFs?

No. PDFnoted only supports unprotected PDFs. If your file has an open password, first use PDFnoted’s ‘Remove Password’ tool to decrypt it—then re-upload for metadata inspection.

Why do some PDFs show ‘Unknown’ author or blank title?

This means the PDF was created without populating those fields—e.g., via screenshot conversion, scanning, or legacy software. PDFnoted displays only what’s embedded; it never auto-fills or guesses missing values.

Is batch processing free? What’s the file limit?

100% free. Up to 10 PDFs per batch (≤50 MB total)—perfect for daily office use. No sign-up required. All processing happens locally in your browser; files are never stored on servers.

相关工具：Related tools: AI 智能脱敏 / AI Redact

本文为 PDFnoted 原创使用指南，介绍如何用本工具完成该场景。访问查看元数据立即体验。

This is an original PDFnoted guide on completing this scenario with our tool. Try Metadata.