📝 PDF 转文本（提取文字）PDF to Text Converter
从 PDF 中提取全部文字并保留行和段落结构：支持中文、多栏间距识别、按页分隔，可复制或下载为 TXT；也提供“原始顺序”模式，加密 PDF 输入密码后同样可用，不上传文件。Extract all the text from a PDF while keeping lines and paragraph breaks — Chinese supported, column gaps detected, optional page separators — then copy it or download a TXT. A raw-order mode is also available, and encrypted PDFs work with their password. No upload.
使用说明与常见问题How-to & FAQ
「PDF 转文本（提取文字）」是什么？What is the PDF to Text Converter tool?
从 PDF 中提取全部文字并保留行和段落结构：支持中文、多栏间距识别、按页分隔，可复制或下载为 TXT；也提供“原始顺序”模式，加密 PDF 输入密码后同样可用，不上传文件。Extract all the text from a PDF while keeping lines and paragraph breaks — Chinese supported, column gaps detected, optional page separators — then copy it or download a TXT. A raw-order mode is also available, and encrypted PDFs work with their password. No upload.
如何使用「PDF 转文本（提取文字）」？How do I use the PDF to Text Converter tool?
在「PDF 转文本（提取文字）」中，按需设置「方式」、「页码（留空为全部）」等选项，然后点击「提取文字」、「复制」、「下载 TXT」按钮即可。支持拖放文件。加密的 PDF 选好后会先出现「打开密码」栏和「打开」按钮，输入密码点「打开」后再继续。In the PDF to Text Converter: Set "Mode", "Pages (empty = all)", then click "Extract text", "Copy", "Download TXT". Drag-and-drop files is supported. For an encrypted PDF, a Password field and an Open button appear after you choose it — enter the password and click Open first.
提取的文字顺序准确吗？Is the extracted text in the right order?
“按版面排列”会根据文字在页面上的位置重新排成行，并用空行表示段落间距、用空格表示多栏间隙，适合大多数文档；如果双栏文章被横向合并，可尝试“原始顺序”，它按 PDF 内部的书写顺序输出。Layout order rebuilds lines from text positions, with blank lines for paragraph gaps and spaces for column gaps — right for most documents. If a two-column article gets merged across, try Raw order, which follows the PDF's internal drawing order.
扫描件可以转换吗？Can scanned PDFs be converted?
本工具读取 PDF 自带的文字层，不做 OCR 文字识别。扫描件或纯图片 PDF 没有文字层，会提示“没有找到可提取的文字”；这种情况需要先用 OCR 软件识别。This tool reads the PDF's built-in text layer and does not perform OCR. Scans and image-only PDFs have no text layer, so you'll see "No extractable text found"; run them through OCR software first.
为什么复制出来有乱码？Why is some text garbled?
少数 PDF 的字体没有提供正确的字符映射（ToUnicode），任何工具提取都会得到乱码或方块，这时只能用 OCR 识别页面图像。A few PDFs embed fonts without a correct character map (ToUnicode); every extractor then returns garbage or boxes, and only OCR of the page image can help.
加密的 PDF 可以处理吗？Can it handle password-protected PDFs?
可以。如果 PDF 需要打开密码，会提示你输入；只有权限限制（无打开密码）的文件会自动打开。输出文件不再带密码，如需加密请使用“PDF 加密”工具。Yes. If the PDF needs an open password you'll be asked for it; files with only permission restrictions open automatically. The output is not password-protected — use the Protect PDF tool if needed.
文件会上传到服务器吗？Are my files uploaded?
不会。PDF 在你的浏览器里用 pdf-lib / pdf.js 处理，文件不会离开你的设备，关闭页面后不留存任何数据。No. The PDF is processed in your browser with pdf-lib / pdf.js; files never leave your device and nothing is kept after you close the page.
「PDF 转文本（提取文字）」免费吗？需要注册吗？Is the PDF to Text Converter free? Do I need an account?
「PDF 转文本（提取文字）」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The PDF to Text Converter is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.