PDF 页面提取
按页码区间提取 PDF 页面。实现就是本地 uk-pdf 的分割，不会把其余页渲染成图片。
浏览器本地运行所有计算都在你的浏览器里完成，数据不会离开本机。
PDF（base64）
拆分结果
每份 PDF 的 base64 各占一行，按片段顺序排列。
正在加载 PDF 模块…
粘贴 PDF 的 base64 后开始拆分
份数: 0 · 原页数: 0 · 输出字节: 0
这个工具能做什么
- 把一份长文档按章节拆成多个文件。
- 只挑出需要的几页单独发给别人。
- 拆分后再逐份做删页或加水印。
示例
输入
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
输出
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
页码从 1 开始；每个片段单独产出一份 PDF，输出是这些 PDF 的 base64 用换行连接。
常见问题
页范围怎么写？
用 1-3 表示区间、3 表示单页，逗号分隔的每个片段各产出一份 PDF，分号与换行也算分隔符。
页码越界会怎样？
直接报 invalid-input，不会产出空文档。例如 6 页的文件写 9-20 会被拒绝。
会重新压缩内容吗？
不会。只重建页面树与对象表，页面内容流原样搬运。
加密的 PDF 能拆吗？
不能。检测到加密会报 encrypted，请先用解密工具处理。
关键词：pdf页面提取pdf-pagewasm离线