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.
31 guides →Kindle, Kobo and e-readers
Getting EPUB and PDF files onto Kindle, Kobo, BOOX, PocketBook, reMarkable and Supernote, model by model.
23 guides →Reading apps
EPUB readers for iPhone, iPad, Android, Mac, Windows, Linux and the browser.
20 guides →Research and study
Papers, textbooks and theses on an e-reader; reference managers and notes apps.
13 guides →Accessibility and the EAA
Accessible EPUB3, WCAG reflow, the European Accessibility Act, Section 508 and ADA Title II.
23 guides →The EPUB format
What is inside an EPUB, how to edit, fix, validate and shrink one.
30 guides →Other conversions
EPUB to and from PDF, MOBI, Word, HTML, DjVu, FB2, Google Docs, Notion and more.
16 guides →Start here
- PDF to EPUB Free Online: Convert Without Installing Software
Convert any PDF to EPUB in 30 seconds — free, no account, no software. Works on Kindle, Kobo, and Apple Books. Handles scanned PDFs, multi-column papers, and tables.
- How to Read PDFs on Kindle — The Right Way (Convert First)
Kindle's built-in PDF viewer is terrible: fixed font, no reflow, tiny text. The right way to read PDFs on Kindle is to convert to EPUB first. Here's how — free, 30 seconds.
- How to Send an EPUB to Your Kobo — All Methods (2026)
Four ways to get an EPUB onto your Kobo e-reader: USB cable, Kobo desktop app, sideloading via Calibre, and the Send to Kobo feature. Step-by-step guide for all Kobo models.
- 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.
- Best EPUB Reader Apps for Linux (2026)
The best EPUB reader apps for Linux: Calibre, Foliate, Okular, FBReader, and others. Covers Ubuntu, Fedora, and Debian. Plus how to convert PDFs to EPUB on Linux.
- How to Reduce EPUB File Size — Image Compression, Font Subsetting, and More
Reduce EPUB file size using Calibre lossless image compression, PNG-to-JPEG conversion, font subsetting with pyftsubset, and image resizing. Practical steps with size reduction estimates.
- EPUB vs CBZ/CBR for Comics: Format Comparison and Conversion Guide
EPUB fixed-layout vs CBZ/CBR for comics and manga. Feature comparison, how to convert CBZ to EPUB with Calibre or KCC, manga page direction, and when to use each format.
- How PDF-to-EPUB3 Conversion Satisfies the European Accessibility Act (2026)
The EAA requires WCAG 2.2 AA for digital documents in the EU. PDF fails reflow and reading order requirements. EPUB3 passes by design — convert in 30 seconds.
- Calibre PDF to EPUB: When to Use It and When to Use Something Simpler
Calibre converts PDFs to EPUB but requires installation and produces inconsistent results on complex layouts. Here's when it works and when a web alternative is faster.
- Best Free PDF to EPUB Converters (2026): Tested and Compared
We tested toolkit.bot, Calibre, Zamzar, and iLovePDF on scanned PDFs, two-column papers, and tables. Here's what each tool does well — and where each fails.
- How to Convert a Scanned PDF to EPUB (Automatic OCR)
Convert scanned PDFs — image-only documents — to searchable, reflowable EPUB with automatic OCR. No Tesseract setup, no install. Free browser tool.
- EPUB vs PDF: Which Is Better for Reading?
EPUB reflows to any screen size; PDF preserves exact layout. Here's when to use each format — and how to convert a PDF to EPUB in 30 seconds.