PDF to EPUB
「PDF to EPUB」はテキストと文書に使えるブラウザツールです。入力内容と結果は通常この端末内で処理され、登録は必要ありません。
LOCAL EPUB 3 CONVERSION
Make a local EPUB from a PDF
Build a standards-based EPUB 3.3 file in this browser. Your PDF is never uploaded.
No OCR, layout reconstruction, table, column, footnote, formula, font, original-layout, or accessibility-semantic preservation is promised. PDF outlines are used only when every destination can be safely mapped to a page.
使い方
使い方
- Choose a local PDF up to 50 MB and 100 pages.
- Extract embedded text where available, or select page-image mode.
- Download the generated EPUB 3.3 file from this browser.
A real EPUB 3.3 package
The download is an application/epub+zip Blob with an uncompressed mimetype first entry, a META-INF container, EPUB package document, navigation document, manifest, spine, and one XHTML document per source page. JSZip 3.10.2 is used under its MIT license; its notice is included in the site third-party notices.
Text first, images when needed
Text mode joins PDF.js getTextContent() items in their available order. A page without embedded text becomes a locally rendered page image. Image mode renders every page. Existing PDF outline entries are used only when all their destinations resolve safely to PDF pages; otherwise the EPUB navigation lists pages.
Deliberately limited conversion
This is not OCR or a layout-preservation service. It does not promise faithful columns, tables, footnotes, formulas, fonts, original placement, reading order, or accessible semantics. Keep your PDF and inspect the EPUB in a reader.
よくある質問
あわせて知りたいこと
Is my PDF uploaded?
No. PDF.js, Canvas, and JSZip process the selected file in this browser. The tool does not send the PDF to a server.
Does it perform OCR?
No. It reads only existing PDF text objects. Pages without text objects become images in text mode.
Will the EPUB keep the original layout?
No. Text output is best-effort text by page, and image output is a raster page. Complex layouts and document semantics are not preserved.
Why was the PDF outline not used?
An outline is included only when every outline destination safely resolves to a source page. Otherwise the EPUB uses a page-by-page navigation list.