对于习惯数字阅读的人来说，扫描版 PDF 的最大痛点，就是它仅仅是纸质书的静态复制，而非真正的电子书。 如果你想要提取内容，手动复制麻烦不说，往往还会带上页眉页脚、乱七八糟的分页符，甚至 OCR（光学字符识别）也可能把“人类”识别成“八八艹”。

CloudConvert website offers a very useful EPUB to PDF converter tool with some really interesting features. You can add multiple ePub files and convert them to PDF easily. You can also input files ...