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Scanned PDF to EPUB Converter

Use a converter workflow with OCR for scanned PDFs, so image-based pages have a better chance of becoming readable EPUB content.

Drop a PDF or EPUB here

Upload one document, then choose the result you want to create.

PDF or EPUB · one file at a time

A book on paper. Ready for any screen.

Select, search and resize the text in your scans, with illustrations and equations kept in place. Leave constant zooming and sideways scrolling behind, and read comfortably on your phone or e-reader.

Scanned page · English
On floating bodies · p. 274
Converted · European Spanish

Las obras de Arquímedes

Entonces, puesto que CO = ½p, CL debe ser perpendicular a PT y, por tanto, a la superficie del fluido.

Y las fuerzas que actúan sobre la parte sumergida del paraboloide y sobre la parte situada por encima de la superficie actúan, respectivamente, hacia arriba y hacia abajo, a lo largo de rectas que pasan por F y H y son paralelas a CL.

Por tanto, el paraboloide no puede permanecer en la posición en que B apenas toca la superficie, sino que debe girar en el sentido de aumentar el ángulo PTM.

La demostración es la misma cuando el punto I no está en VP, sino en su prolongación, como en la segunda figura*.

Diagrama geométrico del original

[Con la notación de la p. 266, si la base BB′ toca la superficie del fluido en B, tenemos

BM=BVsinθ+PN

y, por la propiedad de la parábola,

BV2=(p+4AN)PV=pk(1+cot2θ)

Por tanto

ph=pk+p2cotθ

Para obtener el resultado de la proposición, debemos eliminar k entre esta ecuación y

x′−x=cosθ{p4(cot2θ+2)−23(h−k)}.

* Es curioso que las figuras de Torelli, Nizze y Heiberg sean todas incorrectas, pues sitúan el punto que he llamado I en BQ en vez de en la prolongación de VP.

274
  • Text recognition
  • Illustrations & equations
  • Adjustable text
  • Reflowable pages

Turn scanned pages into an ebook with adjustable text that flows to fit your screen. Keep the words, illustrations and equations together, and enjoy old books on your phone or e-reader.

Desktop + iOS client

Download the desktop app to convert scanned PDFs and check OCR output

The desktop app is better suited to scanned PDFs because it gives you room to inspect OCR text, review the converted EPUB, and keep everything local while you work. That matters when you are comparing whether a scanned-PDF converter produces something readable enough to keep.

EPUB PDF ZIP M4B
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Built for converting scanned PDFs into readable EPUB files

A good converter for scanned PDFs should turn image-based pages into an EPUB that is useful beyond the export moment and still worth reviewing.

  1. Best for scan-heavy PDFs and archived copies

    Useful for scanned books, study materials, and other PDFs where OCR quality decides whether the EPUB is worth using.

  2. The output should become readable, not stay image-bound

    A strong result is an EPUB that feels easier to search and read, rather than a new container for the same static page images.

  3. Reviewing OCR is part of choosing the right converter

    Users often still need to inspect recognition quality and obvious errors before deciding whether the conversion succeeded.

  4. Focused on scan-heavy files

    It stays centered on OCR quality, EPUB readability, and whether the converted file is strong enough to keep using.