[{"data":1,"prerenderedAt":721},["ShallowReactive",2],{"guide-epub-to-markdown-guide":3,"faq-epub-to-markdown-guide":4,"related-epub-to-markdown-guide":178},null,{"id":5,"title":6,"body":7,"category":156,"description":157,"extension":158,"keywords":159,"meta":165,"navigation":166,"path":167,"relatedTools":168,"seo":173,"stem":174,"type":175,"updatedAt":176,"__hash__":177},"faq\u002Fhelp\u002Ffaq\u002Fepub-to-markdown-guide.md","如何在线将EPUB电子书转换为Markdown？EPUB转MD方法",{"type":8,"value":9,"toc":144},"minimark",[10,14,18,21,25,32,38,44,50,53,59,65,71,77,80,96,99,105,111,117,120],[11,12,13],"p",{},"打开91AI工具网的EPUB转Markdown工具，上传.epub格式的电子书文件，点击转换即可在线将EPUB电子书转换为纯净的Markdown文本格式。转换后的Markdown文件可在任何文本编辑器中打开，方便进一步编辑、引用或发布到支持Markdown的平台。",[15,16,17],"h2",{"id":17},"详细解答",[11,19,20],{},"EPUB转Markdown是将标准电子书格式转换为轻量级标记语言文本的过程，广泛应用于内容提取和多平台发布。",[22,23,24],"h3",{"id":24},"转换特点",[11,26,27,31],{},[28,29,30],"strong",{},"章节保留","：EPUB的目录结构映射为Markdown标题层级，保持完整的章节组织。",[11,33,34,37],{},[28,35,36],{},"文字提取","：正文内容纯净输出，去除多余的样式标签和排版代码。",[11,39,40,43],{},[28,41,42],{},"图片处理","：EPUB中的插图以Markdown图片链接保留，指向原始图片路径。",[11,45,46,49],{},[28,47,48],{},"链接保留","：电子书中的超链接转换为Markdown链接格式。",[22,51,52],{"id":52},"适用场景",[11,54,55,58],{},[28,56,57],{},"内容整理和编辑","：将EPUB电子书中的文字内容提取为Markdown格式，在Markdown编辑器中进行二次整理、标注和重新排版，适合读书笔记和资料汇编。",[11,60,61,64],{},[28,62,63],{},"多平台发布","：将EPUB内容转换为Markdown后，可发布到支持Markdown格式的平台（如GitHub、博客CMS、内部Wiki等），无需依赖特定电子书阅读器。",[11,66,67,70],{},[28,68,69],{},"学术引用","：从EPUB格式的学术著作中提取特定章节或段落为Markdown文本，方便引用和段落标注。",[11,72,73,76],{},[28,74,75],{},"内容迁移","：将EPUB电子书的内容迁移到静态网站生成器（如Hugo、Next.js、Nuxt等）时，Markdown是首选的源文件格式。",[22,78,79],{"id":79},"转换效果",[81,82,83,87,90,93],"ul",{},[84,85,86],"li",{},"文字内容完整提取，无遗漏",[84,88,89],{},"目录结构映射为标题层级，支持导航",[84,91,92],{},"图片和链接正常保留",[84,94,95],{},"特殊字符和标点符号正常显示",[22,97,98],{"id":98},"常见问题",[11,100,101,104],{},[28,102,103],{},"Q：转换后图片会丢失吗？","\nA：图片以Markdown图片链接形式保留，链接指向EPUB包中的原始图片路径。如需要在其他平台使用图片，需手动处理图片资源。",[11,106,107,110],{},[28,108,109],{},"Q：格式复杂的电子书转换效果如何？","\nA：以文字为主的电子书转换效果最好。包含复杂排版（如多栏、浮动元素、表格嵌套）的电子书可能需要转换后手动调整。",[11,112,113,116],{},[28,114,115],{},"Q：转换速度快吗？","\nA：EPUB为轻量级格式，即使数百页的电子书也能在几秒内完成转换。",[22,118,119],{"id":119},"相关工具",[81,121,122,130,137],{},[84,123,124,129],{},[125,126,128],"a",{"href":127},"\u002Ftools\u002Fmarkdown-to-epub","Markdown转EPUB"," 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- 在线压缩MP4、AVI等视频文件",[84,365,366,369],{},[125,367,368],{"href":260},"视频转音频"," - 从视频中提取音频",[84,371,372,375],{},[125,373,374],{"href":256},"音频格式转换"," - MP3、WAV、FLAC等互转",[84,377,378,381],{},[125,379,380],{"href":238},"视频格式转换"," - 视频格式互转",[22,383,384],{"id":384},"图片处理工具",[81,386,387,392],{},[84,388,389,391],{},[125,390,287],{"href":286}," - JPG\u002FPNG\u002FWebP压缩",[84,393,394,396],{},[125,395,291],{"href":290}," - 图片格式互转",[22,398,400],{"id":399},"cad及office工具","CAD及Office工具",[81,402,403,410,417,424],{},[84,404,405,409],{},[125,406,408],{"href":407},"\u002Ftools\u002Fcad-version-convert","CAD版本转换"," - DWG\u002FDXF版本互转",[84,411,412,416],{},[125,413,415],{"href":414},"\u002Ftools\u002Fcad-to-pdf","CAD转PDF"," - CAD图纸转PDF",[84,418,419,423],{},[125,420,422],{"href":421},"\u002Ftools\u002Fdwg-to-dxf","DWG转DXF"," - AutoCAD格式转换",[84,425,426,430],{},[125,427,429],{"href":428},"\u002Ftools\u002Fword_compress","Word\u002FExcel\u002FPPT压缩"," - 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2025年度报告、Statista在线工具用户行为调查",[15,476,477],{"id":477},"适用人群",[81,479,480,486,492,498],{},[84,481,482,485],{},[28,483,484],{},"职场办公族","：需要频繁处理PDF、Office文档",[84,487,488,491],{},[28,489,490],{},"设计师","：需要压缩和转换图片格式",[84,493,494,497],{},[28,495,496],{},"学生群体","：整理课件、转换文档格式",[84,499,500,503],{},[28,501,502],{},"普通用户","：需要处理音视频或文件格式转换",[505,506,507],"blockquote",{},[11,508,509,510,513],{},"试试我们的",[125,511,512],{"href":233},"纯前端视频压缩工具"," — 不上传服务器，不限文件大小，完全免费",{"title":145,"searchDepth":146,"depth":146,"links":515},[516,523,524],{"id":189,"depth":146,"text":189,"children":517},[518,519,520,521,522],{"id":192,"depth":151,"text":193},{"id":297,"depth":151,"text":298},{"id":351,"depth":151,"text":352},{"id":384,"depth":151,"text":384},{"id":399,"depth":151,"text":400},{"id":433,"depth":146,"text":433},{"id":477,"depth":146,"text":477},"91AI工具提供纯前端音视频\u002F图片处理（免费无限用）和PDF\u002F文档在线转换（免费体验）等50+种工具，无需安装即点即用。",[527,528,529,530,531],"91AI工具","在线转换","PDF处理","纯前端工具","免费在线工具",{},"\u002Fhelp\u002Ffaq\u002F91aitool-introduction",[535,536,537,538],"video-compress","audio-convert","pdf-to-word","img-compress",{"title":181,"description":525},"help\u002Ffaq\u002F91aitool-introduction","2026-05-06","Dr6ei_okkl0tz4LnR1ZOi50ReKpUQOffM0kc2pCe8Ek",{"id":544,"title":545,"body":546,"category":156,"description":622,"extension":158,"keywords":623,"meta":629,"navigation":166,"path":630,"relatedTools":631,"seo":633,"stem":634,"type":175,"updatedAt":635,"__hash__":636},"faq\u002Fhelp\u002Ffaq\u002Faudio-compress-guide.md","如何在线压缩音频文件大小？",{"type":8,"value":547,"toc":616},[548,551,553,556,559,562,565,571,577,583,589,592,595,598],[11,549,550],{},"打开91AI工具网的音频压缩工具，上传音频文件，选择压缩强度（低\u002F中\u002F高）和输出格式（MP3或WAV），点击压缩即可。系统会自动处理，输出体积更小的音频文件。",[15,552,17],{"id":17},[11,554,555],{},"音频压缩的核心是降低比特率和采用更高效的编码格式。通过降低音频比特率（如从320kbps降到128kbps）、转换声道（立体声转为单声道）和降低采样率（从48000Hz降到22050Hz）来减小文件体积。",[11,557,558],{},"工具提供三级压缩强度：低压缩（约80%原始大小，高音质），中压缩（约50%原始大小，适中音质），高压缩（约25%原始大小，适合语音）。对于音乐文件，中压缩模式可以在音质和大小之间取得良好平衡。",[11,560,561],{},"压缩过程中采用智能编码策略，优先保留人声频段的信息，对不敏感的高频部分适当减少比特分配，使听觉体验的损失最小化。",[15,563,564],{"id":564},"使用场景",[11,566,567,570],{},[28,568,569],{},"邮件发送","：邮箱附件通常限制25MB，大音频文件压缩后可正常发送。录音笔导出的WAV文件经常超过限制，压缩为MP3后可轻松发送。",[11,572,573,576],{},[28,574,575],{},"聊天分享","：微信等即时通讯工具对文件大小有限制，压缩音频文件后可直接分享。长篇语音消息导出后压缩，方便转发。",[11,578,579,582],{},[28,580,581],{},"存储节省","：播客爱好者大量音频存档时，压缩可节省数GB存储空间。将手机录音压缩备份到云盘，减少存储费用。",[11,584,585,588],{},[28,586,587],{},"网站上传","：网页上传音频素材有大小限制时，先压缩再上传可以顺利通过。个人网站音乐文件的压缩可提高页面加载速度。",[15,590,591],{"id":591},"注意事项",[11,593,594],{},"音频压缩是有损过程，过高压缩会导致明显音质劣化（金属声、声音模糊等）。语音内容可以接受更高压缩比，音乐内容建议使用低或中压缩。建议压缩前备份原始高质量文件，以便未来需要时恢复使用。",[15,596,597],{"id":597},"相关推荐",[81,599,600,606,611],{},[84,601,602,605],{},[125,603,604],{"href":252},"音频压缩工具"," - 在线压缩音频文件",[84,607,608,610],{},[125,609,374],{"href":256}," - 转换音频格式",[84,612,613,615],{},[125,614,362],{"href":233}," - 压缩视频文件大小",{"title":145,"searchDepth":146,"depth":146,"links":617},[618,619,620,621],{"id":17,"depth":146,"text":17},{"id":564,"depth":146,"text":564},{"id":591,"depth":146,"text":591},{"id":597,"depth":146,"text":597},"免费在线压缩音频文件大小，支持MP3和WAV格式输出。提供多档压缩强度选择，在保持可接受音质的同时显著减小文件体积。",[624,625,626,627,628],"音频压缩","压缩MP3","减小音频大小","音频文件压缩","在线压缩音频",{},"\u002Fhelp\u002Ffaq\u002Faudio-compress-guide",[632,536,535],"audio-compress",{"title":545,"description":622},"help\u002Ffaq\u002Faudio-compress-guide","2026-05-05","aDU_7LhdgBzyEN35PuZxF3vMx2V2aTfpqd57971jqvo",{"id":638,"title":639,"body":640,"category":156,"description":709,"extension":158,"keywords":710,"meta":714,"navigation":166,"path":715,"relatedTools":716,"seo":717,"stem":718,"type":175,"updatedAt":719,"__hash__":720},"faq\u002Fhelp\u002Ffaq\u002Faudio-compress-tool-guide.md","如何在线压缩音频文件？音频太大怎么变小？",{"type":8,"value":641,"toc":703},[642,648,650,653,656,662,664,670,676,682,684,687,689],[11,643,644,645,647],{},"打开91AI工具网的",[125,646,604],{"href":252},"，上传音频文件，选择压缩强度（低\u002F中\u002F高）和输出格式（MP3或WAV），点击压缩即可。系统会自动降低比特率并优化编码，输出体积更小的音频文件。",[15,649,17],{"id":17},[11,651,652],{},"音频压缩的核心机制是降低比特率和采用更高效的编码。比特率越高，每秒音频包含的数据量越大，音质越好但文件也越大。320kbps的MP3文件约是128kbps版本大小的2.5倍，但音质差异在普通设备上不易察觉。",[11,654,655],{},"工具提供三档压缩：低压缩保留约80%体积、中压缩保留约50%、高压缩保留约25%。对于语音类内容（播客、会议录音、有声书），高压缩模式仍能保持清晰可辨。对于音乐类内容，建议使用中压缩模式保持音质与大小的平衡。",[11,657,658,659,661],{},"与",[125,660,374],{"href":256},"不同，压缩工具不仅改变格式，还会主动降低编码参数以减小体积。压缩过程在浏览器本地完成，不上传服务器，保护文件隐私安全。",[15,663,564],{"id":564},[11,665,666,669],{},[28,667,668],{},"播客制作","：录制的高质量音频转为MP3 128kbps后上传播客平台，大幅减少存储和带宽成本。一段60分钟的无损音频约600MB，压缩为MP3 128kbps后仅约60MB，适合各类播客平台发布和分发。",[11,671,672,675],{},[28,673,674],{},"手机录音处理","：手机录制的会议音频每分钟约10MB，压缩后仅为1-2MB。将一周的会议录音压缩保存，节省大量手机存储空间。推荐高压缩模式，语音清晰度仍然良好，适合日常办公记录保存。",[11,677,678,681],{},[28,679,680],{},"音乐文件管理","：整理音乐收藏时将FLAC或高码率MP3压缩为MP3 192kbps，可在手机中存储更多歌曲。1000首歌曲压缩后可节省约15-20GB存储空间，适合大容量音乐库的移动设备同步。",[15,683,591],{"id":591},[11,685,686],{},"音频压缩是有损处理，过高压缩会导致金属声或空洞感等音质劣化。建议压缩前备份原始文件。人声比音乐更能承受高压缩，播客和有声书可大胆使用高压缩模式。MP3格式在低比特率下表现优于WAV，因此压缩时推荐选择MP3输出格式以获取更好的效率。",[15,688,597],{"id":597},[81,690,691,695,699],{},[84,692,693,605],{},[125,694,604],{"href":252},[84,696,697,610],{},[125,698,374],{"href":256},[84,700,701,615],{},[125,702,362],{"href":233},{"title":145,"searchDepth":146,"depth":146,"links":704},[705,706,707,708],{"id":17,"depth":146,"text":17},{"id":564,"depth":146,"text":564},{"id":591,"depth":146,"text":591},{"id":597,"depth":146,"text":597},"免费在线压缩音频文件，支持MP3和WAV格式输出。三档压缩强度自由选择，在保持可接受音质的同时显著减小音频文件体积，浏览器本地处理安全可靠。",[604,711,712,713],"压缩音频大小","MP3压缩","在线音频压缩",{},"\u002Fhelp\u002Ffaq\u002Faudio-compress-tool-guide",[632,536,535],{"title":639,"description":709},"help\u002Ffaq\u002Faudio-compress-tool-guide","2026-05-10","dTrlUF0WyNnPekjdLBtZJAkGbHELQjfjy8pRyPGXFaY",1784188026302]