Ebook Conversion
Convert EPUB to PDB Online — Free
Fast, free EPUB to PDB converter. No registration required.
またはインポート元
200万以上のファイル変換
数千人のユーザーに信頼されています
安全な転送
HTTPS暗号化アップロード
プライバシー優先
処理後にファイルを自動削除
登録不要
すぐに変換を開始
どこでも動作
あらゆるブラウザ、あらゆるデバイス
変換方法
1
Upload your .epub file by dragging it into the upload area or clicking to browse.
2
Choose your output settings. The default settings work great for most files.
3
Click Convert and download your .pdb file when it's ready.
EPUBとは？
EPUB is the most widely supported ebook format. It supports reflowable text that adapts to different screen sizes, making it ideal for e-readers.
形式の詳細
- 正式名称
- Electronic Publication
- 拡張子
- .epub
主な特徴
- Reflowable text
- E-reader standard
- DRM support
- Multimedia
PDBとは？
PDB is the Palm OS database format used for eBooks on Palm Pilot and compatible PDAs. It was one of the earliest digital reading platforms, supporting eReader and Plucker content. Legacy format with large existing library.
形式の詳細
- 正式名称
- Palm Database eBook
- 拡張子
- .pdb
主な特徴
- Palm OS
- eReader format
- Legacy eBook
- Plucker support
EPUBとPDBの比較
| 特徴 | EPUB | PDB |
|---|---|---|
| 正式名称 | Electronic Publication | Palm Database eBook |
| 拡張子 | .epub | .pdb |
| 最適な用途 | Reflowable text | Palm OS |
よくある質問
Yes. Our converter preserves chapter structure, table of contents, and navigation. Formatting, images, and internal links are maintained when both formats support them.
MOBI and AZW3 formats work natively on Kindle devices. EPUB works on Kobo, Nook, and most other e-readers. PDF works universally but isn't reflowable.
We can only convert DRM-free eBooks. If your file has DRM restrictions, you'll need to remove them before conversion. We don't provide DRM removal tools.
Yes. eBook conversion is free with up to 5 conversions per day. No registration or watermarks. Pro users get unlimited conversions and batch processing.
Yes. Upload from any device with a browser — iPhone, Android, tablet, or desktop. No app installation required.