Guides
Everything about getting a PDF onto an e-reader as a proper EPUB, and what to do once it is there. Seven sections, written for people who read.
PDF to EPUB
How to convert a PDF to EPUB well: by platform, by document type, and what to do when the result is wrong.
11 guides →Kindle, Kobo and e-readers
Getting EPUB and PDF files onto Kindle, Kobo, BOOX, PocketBook, reMarkable and Supernote, model by model.
5 guides →Reading apps
EPUB readers for iPhone, iPad, Android, Mac, Windows, Linux and the browser.
2 guides →Research and study
Papers, textbooks and theses on an e-reader; reference managers and notes apps.
2 guides →Start here
- PDF EPUB: What the Formats Are and How to Convert
PDF EPUB explained — Portable Document Format vs EPUB files, and a PDF to EPUB converter that runs in web browsers.
- How to Convert PDF to EPUB with Calibre — Step-by-Step Tutorial (2026)
Complete Calibre PDF-to-EPUB tutorial: adding books, conversion settings, output quality, and when to use a dedicated tool instead. Free, works on Windows, Mac, and Linux.
- How to Read PDFs on Kobo — The EPUB Conversion Method (2026)
Kobo opens PDFs but can't reflow them. Convert to EPUB first (first 50 pages free, no account), then transfer by USB, app, Calibre or Dropbox.
- Scanned PDF to EPUB: Free Automatic OCR, No Install
Convert scanned, image-only PDFs to searchable, reflowable EPUB with automatic OCR. In the browser, nothing to install; first 50 pages free. Expected accuracy by scan quality.
- How to Convert Research Papers (PDF) to EPUB for E-Readers
Academic PDFs are two-column and break on e-readers. Here's how to convert journal articles, preprints, and papers to reflowable EPUB — free, no Calibre required.
- How to Read a PDF on Kindle Scribe: Convert to EPUB First
PDFs stay fixed on Kindle Scribe. Convert the PDF to EPUB, send it with Send to Kindle, and read reflowable text you can annotate with the pen.
- How to Read a PDF on reMarkable 2 and Paper Pro: Convert to EPUB First
PDFs do not reflow on reMarkable 2 or Paper Pro. Convert the PDF to EPUB, transfer it by app, web or USB, and read at your own font size with pen annotation.
- How to Read a PDF in Apple Books on iPhone, iPad and Mac: Convert to EPUB First
PDFs do not reflow in Apple Books. Convert the PDF to EPUB, add it via Share, Files, Mail, AirDrop or Finder, and read at your own font size with iCloud sync.
- How to Read a PDF on a Nook: Convert to EPUB First
PDFs stay fixed on a Nook GlowLight. Convert the PDF to EPUB, sideload it by USB or Nook for PC in a minute, and read reflowable text at your own font size.
- Convert PDF to EPUB on Mac: Free, No Install
Convert PDF to EPUB on macOS without installing software: free browser tool, Calibre or curl. Works on Intel and Apple Silicon Macs. Handles scanned PDFs.
- Free PDF to EPUB Converters: How to Choose
Compare offline Calibre conversion with a browser preview. Check scans, columns, free limits, and download requirements using your own PDF.
PDF to EPUB
- How to Convert PDF to EPUB with Calibre — Step-by-Step Tutorial (2026)
Complete Calibre PDF-to-EPUB tutorial: adding books, conversion settings, output quality, and when to use a dedicated tool instead. Free, works on Windows, Mac, and Linux.
- PDF EPUB: What the Formats Are and How to Convert
PDF EPUB explained — Portable Document Format vs EPUB files, and a PDF to EPUB converter that runs in web browsers.
- My converted EPUB has broken paragraphs and stray line breaks every few words
EPUB paragraphs broken into short lines after conversion? Why line-copy converters produce jagged text and how paragraph detection fixes it on toolkit.bot.
- Two-column PDF converted to EPUB reads across the page instead of down
Two-column PDF turned into one jumbled column in EPUB? Why lines interleave across columns and how column detection fixes reading order on toolkit.bot.
- Scanned PDF converted to EPUB is blank or garbled
Scanned PDF converts to blank pages or garbled text in EPUB? Why image-only PDFs produce empty EPUBs and how text recognition fixes it on toolkit.bot.
- EPUB text is tiny and does not reflow on Kobo or Kindle
EPUB text tiny on Kobo or Kindle after conversion? Why fixed-page converters lock font size and how reflowable conversion fixes it on toolkit.bot.
- EPUB footnotes and page numbers mixed into the text
Footnotes and page numbers landing mid-sentence in your EPUB? Why PDFs lose footnote structure and how reflow conversion keeps notes and paging separate.
- Convert PDF to EPUB on Mac: Free, No Install
Convert PDF to EPUB on macOS without installing software: free browser tool, Calibre or curl. Works on Intel and Apple Silicon Macs. Handles scanned PDFs.
Kindle, Kobo and e-readers
- How to Read a PDF on a Nook: Convert to EPUB First
PDFs stay fixed on a Nook GlowLight. Convert the PDF to EPUB, sideload it by USB or Nook for PC in a minute, and read reflowable text at your own font size.
- How to Read PDFs on Kobo — The EPUB Conversion Method (2026)
Kobo opens PDFs but can't reflow them. Convert to EPUB first (first 50 pages free, no account), then transfer by USB, app, Calibre or Dropbox.
- How to Read a PDF on Kindle Scribe: Convert to EPUB First
PDFs stay fixed on Kindle Scribe. Convert the PDF to EPUB, send it with Send to Kindle, and read reflowable text you can annotate with the pen.
- How to Read a PDF on reMarkable 2 and Paper Pro: Convert to EPUB First
PDFs do not reflow on reMarkable 2 or Paper Pro. Convert the PDF to EPUB, transfer it by app, web or USB, and read at your own font size with pen annotation.
- Reading PDFs on Kindle: Keep PDF or Convert to EPUB
Choose PDF for page layout or EPUB for reflowable reading. Preview a conversion, send it to Kindle, and check figures, footnotes, and text.
Reading apps
- How to Read a PDF in Apple Books on iPhone, iPad and Mac: Convert to EPUB First
PDFs do not reflow in Apple Books. Convert the PDF to EPUB, add it via Share, Files, Mail, AirDrop or Finder, and read at your own font size with iCloud sync.
- PDF to EPUB on Android: Convert and Open in Your Reader
Convert a PDF in your Android browser, preview the result, download it, and open the EPUB in Play Books or another reader.
Research and study
- How to Convert Research Papers (PDF) to EPUB for E-Readers
Academic PDFs are two-column and break on e-readers. Here's how to convert journal articles, preprints, and papers to reflowable EPUB — free, no Calibre required.
- Read Academic Papers on Kindle: PDF to EPUB Workflow
Convert a research paper, inspect columns and equations, and send the EPUB to Kindle. Keep the PDF for page citations and detailed figures.