How to Convert PDF to EPUB — Quick & Free
Fast, instant PDF to EPUB conversion. No signup required. Just drop your .pdf file and get .epub in seconds.
Batch Settings
Some metadata may not survive
Your PDF file may contain XMP, document properties metadata. EPUB has limited or no support for these metadata types. Location data (GPS), camera settings, and color profiles may be stripped during conversion.
お手持ちのPDFファイルを、電子書籍リーダーで読みやすいEPUB形式へ変換しませんか？ビジネス文書から個人的な読書資料、さらにはお気に入りの漫画まで、PDFは様々な場面で活用されています。しかし、スマートフォンやタブレット、専用の電子書籍リーダーでPDFを開くと、文字が小さすぎたり、レイアウトが崩れたりして読みにくいと感じることはありませんか。EPUB形式に変換することで、お使いのデバイスに合わせて文字サイズや行間が自動調整され、まるで紙の本を読んでいるかのような快適な読書体験が実現します。特に、縦書きの書籍や複雑なフォント設定を持つPDFでも、EPUBへの変換によってその美しさを損なうことなく、より多くのデバイスで楽しめるようになります。大切な資料を、もっと身近に、もっと快適に。
- 電子書籍リーダーでの漫画閲覧
- ビジネス資料の通勤時学習
- 同人誌のデジタル配布
日本の出版物には縦書きが多いため、PDFからEPUBへの変換では、縦書き表示の正確性やルビ（振り仮名）の保持が特に重視されます。当サービスでは、これらの要素が適切に変換されるよう配慮しています。
About PDF to EPUB Conversion
Short answer: yes, you can convert PDF to EPUB online for free, and quality is well preserved with the right settings. Just upload your .pdf file to CocoConvert, pick EPUB as the output, and click Convert. The whole process takes seconds.
Now for the details. PDF (Portable Document Format) preserves layout, fonts, and graphics across every device and operating system. EPUB is the standard e-book format supported by most readers except Kindle. Converting between these two formats lets you upgrade to a modern format.
Full Name: PDF uses Portable Document Format, while EPUB uses Electronic Publication. Compression: PDF uses Lossy & Lossless, while EPUB uses Lossless. Typical File Size: PDF uses 100 KB–50 MB (depends on embedded graphics), while EPUB uses 1–20 MB.
Your PDF file is decoded and re-encoded as EPUB. Converting PDF to EPUB maintains high quality with CocoConvert's optimised encoder settings.
CocoConvert runs entirely online — no software to install, no account to create. Your files are encrypted during upload (TLS), processed on isolated servers in Germany, and permanently deleted after 24 hours. It works in Chrome, Safari, Firefox, Edge, and all mobile browsers.
Need to convert more than one file? Free users can do 5 per hour. Pro gets 100 per hour with files up to 5 GB each.
How to Convert PDF to EPUB
- 1
1. Upload PDF
Drop your .pdf file onto the page (or tap "Browse" on mobile). Add multiple files for batch conversion.
- 2
2. Select EPUB
Choose .epub from the output dropdown. Settings are pre-configured for best results.
- 3
3. Convert
One click. The server handles all the heavy lifting using FFmpeg and Sharp.
- 4
4. Download
Your .epub file is ready. Download it directly or get all files as a zip archive.
What Happens When You Convert PDF to EPUB
Your PDF file is decoded and re-encoded as EPUB.
Your PDF file is uploaded and the format is validated
The file content is decoded into its raw representation
The data is re-encoded in EPUB format with optimal settings
The converted file is ready for download
PDF vs EPUB — Detailed Comparison
| Feature | .EPUB | |
|---|---|---|
| Full Name | Portable Document Format | Electronic Publication |
| Compression | Lossy & Lossless | Lossless |
| Typical File Size | 100 KB–50 MB (depends on embedded graphics) | 1–20 MB |
| Platform Support | Universal | Very Wide |
| Browser Support | Universal | none |
| Year Created | 1993 | 2007 |
| Open Standard | Yes | Yes |
Should You Convert PDF to EPUB?
When to Convert
- ✓You need just the audio track from a video recording
- ✓You're creating a podcast or audio file from video content
Frequently Asked Questions
Is PDF to EPUB conversion free?
Yes. CocoConvert offers free PDF to EPUB conversion with generous daily limits — 25 minutes of processing time and up to 5 files per hour (250 MB each). Pro plans remove these limits.
How fast is PDF to EPUB conversion?
Most files convert in 2–10 seconds depending on size. Large document files may take 30 seconds. Batch jobs process in parallel for maximum speed.
What happens to my files after conversion?
Your uploaded PDF file and the converted EPUB file are both automatically deleted from our servers within 24 hours. They are never shared, sold, or analysed.
Does converting PDF to EPUB lose quality?
Converting PDF to EPUB maintains high quality with CocoConvert's optimised encoder settings.
Can I convert EPUB back to PDF?
Yes, CocoConvert supports EPUB to PDF conversion as well. However, if the original conversion involved lossy compression, converting back won't recover the lost data.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.