PDF 批量重命名：按内容、标题、作者自动命名
批量重命名 PDF 文件，支持 4 种方式：提取 PDF 内置元数据（标题、作者、日期）、OCR 识别扫描件文字、AI 读取正文内容生成语义文件名、OCR+AI 组合方案。免费 Windows 工具，无需命令行，无需正则表达式，支持一次处理数百个文件。
PDF 批量重命名是什么？
PDF 批量重命名，是指一次性自动将多个 PDF 文件重命名——通过读取文件内容、元数据或文件名规则，而非逐个手动操作。Renomee 支持四种方式：元数据提取、OCR 识别、AI 读取正文、文件名规则，可在同一次操作中组合使用。
PDF 批量重命名关键参数
处理速度：元数据模式下 100 个 PDF 重命名耗时不足 10 秒；OCR 模式每个文件约 5 至 30 秒（取决于页数和扫描质量）；AI 模式每个文件需网络请求，略慢于本地处理。免费额度：每天 20 次 AI 重命名。平台：仅支持 Windows 10 和 Windows 11。
Renomee 批量重命名 vs 手动重命名
手动重命名：每个文件需打开查看内容、手动输入新名称，每个文件约 30 至 60 秒，超过 20 个文件就非常繁琐且容易出错。Renomee 批量重命名：拖入文件夹，选择方式，一键应用——元数据模式 100 个文件不到 10 秒；OCR+AI 组合模式处理 100 个扫描件约 2 至 5 分钟。执行前始终显示预览，可随时撤销。
两种批量重命名 PDF 的方式
方式一：文件名规则——直接操作文件名，无需读取 PDF 内容，支持加序号、加前后缀、查找替换、大小写转换。方式二：读取 PDF 内容——元数据（PDF 属性中的标题、作者、日期）、OCR（识别扫描版 PDF 的图像文字）、AI（读取完整文档正文，生成语义化文件名）。
如何批量重命名 PDF 文件
第一步：将 PDF 文件或文件夹拖入 Renomee。第二步：选择重命名方式（元数据、OCR 或 AI）。第三步：预览新文件名，确认后一键应用。支持撤销。
扫描版 PDF 怎么重命名
扫描版 PDF 没有文字层，大多数工具无法读取内容。Renomee 的 OCR 引擎逐页识别图像文字，再由 AI 整理成准确的文件名。支持发票、收据、合同、医疗文件等多种场景。
使用限制说明
Renomee 仅支持 Windows（Windows 10 和 Windows 11），不支持 macOS 或 Linux。AI 重命名功能需要联网，每天有 20 次免费额度，超出后需订阅。OCR 识别准确率受扫描质量影响——模糊、旋转或分辨率过低的扫描件可能影响结果。手写内容的 OCR 准确率低于印刷文字。加密或设有密码保护的 PDF 无法读取内容。
常见问题
How do I batch rename PDF files by their title?
Use a tool like Renomee that reads the title metadata embedded in each PDF and uses it as the new filename. Select all PDFs, choose title-based renaming, preview the results, then apply. No manual typing required.
Can I rename PDFs automatically using their content?
Yes. Tools with AI or OCR can read the actual text inside each PDF and generate meaningful filenames based on what the document is about — useful when PDF metadata is missing or incorrect.
How to rename scanned PDFs with no text layer?
Use OCR-powered renaming. The tool scans the visible text in the scanned PDF and extracts key information like dates, vendor names, or invoice numbers to create accurate filenames.
What is the best way to rename research paper PDFs?
Extract the paper title, author, and publication year from the PDF metadata or first page. Use a format like "2024_author_title.pdf" for easy sorting and searching. Renomee automates this workflow.
How to rename PDFs without losing the original filename?
Most batch rename tools, including Renomee, show a preview before applying changes. You can also backup files or use version control. Renomee allows you to undo renaming if needed.
What is the best free tool to batch rename PDF files on Windows?
Renomee is a free Windows tool built specifically for batch PDF renaming. It supports four methods: metadata extraction (title, author, date from file properties), OCR (reads scanned image-only PDFs), AI (reads the full document body), and filename rules (add prefix, suffix, sequence numbers). The free tier includes 20 AI renames per day.
How long does it take to batch rename 100 PDF files?
Renaming 100 PDFs by metadata extraction takes under 10 seconds. OCR-based renaming depends on scan quality and page count — typically 5 to 30 seconds per file. AI renaming adds a short processing step per file and requires an internet connection. A preview is always shown before any file is changed.
Can AI automatically rename PDF files based on their content?
Yes. Renomee's AI mode reads the full document body — not just metadata fields — and generates a context-aware filename. It works for research papers, invoices, contracts, and any document where the content contains naming signals. AI renaming requires an internet connection and uses one free credit per file (20 free per day).
What is PDF metadata and how is it used for renaming?
PDF metadata is information stored inside the file's properties — including title, author, subject, keywords, creation date, and modification date. This metadata can be read without opening or parsing the document text. Renomee extracts these fields and uses them to build a new filename, making metadata-based renaming the fastest method (no OCR or AI required).