Guides & Articles

Convert EPUB to PDF in seconds. Free online method, desktop apps, and command-line options. No watermarks, no sign up required.

EPUB vs PDF - which ebook format should you use? Compare reflowable text, DRM, file size, reader support, and when to convert between them.

Free EPUB to PDF converter with no watermarks, no sign up, no limits. Convert your ebooks to clean PDF files instantly.

Send EPUB files to your Kindle in minutes. Learn 3 methods: Send to Kindle email, Calibre conversion, and the Kindle app. Step-by-step guide.

EPUB vs MOBI — which ebook format is better? Amazon dropped MOBI support in 2023. Learn why EPUB won, and how to convert your MOBI files.

Convert EPUB to Kindle format or send EPUB files directly to your Kindle. Step-by-step guide covering Send to Kindle, Calibre conversion, and PDF fallback.

Send EPUB files to your Kindle by converting to AZW3 first, or using Amazon's Send to Kindle service. Three methods: Send to Kindle, Calibre conversion, and when each fits.

Convertio caps free EPUB conversions per day. For EPUB/PDF only, a specialist gives unlimited free conversions and no 24-hour file retention. Honest comparison.

Zamzar emails your converted file on the free tier — a queue + inbox round-trip for one EPUB. Instant in-browser EPUB and PDF conversion that doesn't need your inbox.

Convert PDF files to reflowable EPUB ebooks in minutes. Free online method, Calibre desktop, and command-line options. Troubleshooting tips included.

How to combine multiple EPUB files into one ebook — 3 free methods compared step by step: an online merger, Calibre, and epubmerge. No signup, no watermarks.

Independent picks for EPUB editing, conversion, validation, and reading — what each tool is genuinely good at, what it isn't, and when to skip it. Free vs paid, online vs install.

Combine multiple EPUB ebooks into one file completely free. No account needed, no watermarks, no file limits. Just drag and drop.

MCP server and REST API for Claude, GPT, and custom agents. Merge, split, compress, convert, validate, edit metadata, and generate AI book covers — all callable from your agent stack with one Bearer key.

Edit EPUB metadata including title, author, cover image, and description. Free online editor and Calibre walkthrough.

Calibre is great for big libraries, but overkill for one EPUB. A free, no-install browser alternative for metadata, merge, split, compress, and validate.

Add or replace the cover image in any EPUB file. Free online tool — upload your EPUB, choose a JPG or PNG cover, and download. No software needed.

Learn how to create EPUB ebook files from scratch, from Word documents, or from HTML. Covers Sigil, Calibre, Pandoc, and online tools.

Step-by-step guide to self-publishing an ebook in 2026. Covers formatting, cover design, metadata, validation, and distribution to Amazon KDP, Apple Books, and Kobo.

Convert Word documents to EPUB for self-publishing. Calibre, Pandoc, and Reedsy methods compared, plus the post-conversion cleanup most authors skip.

AZW3 is Amazon's Kindle-only format. Convert it to EPUB to read on Kobo, Apple Books, Android, or any non-Kindle device. Free methods with Calibre, Epublys, and online tools.

EPUBs reflow, so "pages" depend on font size and screen — but you can still add a page-list and page-break navigation for citation and accessibility. Step by step with EPUB 3 syntax.

Convert EPUB to Word DOCX for heavy editing, track-changes review, or re-publishing. Free Calibre method, Pandoc command line, and when to just edit the EPUB directly instead.

iLovePDF converts EPUB to PDF but can't edit metadata, validate, merge, or split EPUB files. Free EPUB-specific tools for the work iLovePDF leaves on the table.

Edit EPUB files without installing Sigil. Epublys offers free online EPUB tools for merging, splitting, metadata editing, and validation.

Learn how to open and read EPUB files on Windows, Mac, iPhone, iPad, Android, and Kindle. Free EPUB readers and built-in options for every device.

EPUB is the most popular ebook format. Learn what EPUB files are, how they work, which devices support them, and how to create, edit, and convert EPUBs.

Fix common EPUB validation errors: broken links, duplicate IDs, missing manifest entries, invalid XHTML. Step-by-step guide with automatic repair tool.

Upload your EPUB to Amazon KDP the right way. What KDP accepts, why uploads get rejected, cover requirements, and pre-upload validation to save rejection cycles.

Export your Scrivener project to EPUB the right way. Compile settings, common issues with the native compile, and how to polish the output for self-publishing.

Accessible EPUBs help screen readers and vision-impaired readers — and the EU Accessibility Act now requires it. Checklist with concrete fixes for the biggest issues.

EPUB won't open or damaged? Free EPUB repair: the validator pinpoints the exact fault — corrupt ZIP, missing mimetype, bad OPF — then auto-fixes the safe ones (mimetype, container, language).

Turn HTML pages, web articles, or a local site into a proper EPUB. Three methods: Pandoc one-liner, Calibre's recipe engine, and hand-assembled EPUB. Plus what to do once you have the file.

Strip an EPUB down to raw text for research, AI/LLM ingestion, indexing, or accessibility. Three methods: unzip + strip tags, Calibre export, Pandoc extract. What to watch for.

Shrink your EPUB files by up to 70%. Learn image compression, font subsetting, and cleanup techniques for smaller ebooks.

Reduce EPUB file size online free. Re-compresses text and markup, strips unused assets, and repackages the ZIP — images and fonts kept byte-for-byte intact.

Reduce huge EPUB files (100MB, 200MB, even 1GB) to a usable size without quality loss. Where the size really comes from in big EPUBs and the workflow that actually fixes it.

Open any EPUB on Android in a minute. Three free reader apps tested on Pixel and Galaxy, or read it instantly in your browser — no install, no upload.

The best free EPUB reader apps for Windows, Mac, Android, iPhone, Linux, and ChromeOS in 2026 — tested, compared, with pros, cons, and download links.

Read EPUB files on iPhone or iPad the easy way. Apple Books, third-party readers (KyBook, PocketBook, Yomu), and browser-based options — plus DRM and common scenarios.

Yes — every Kobo reads EPUB natively, no conversion needed. Here is how it works, plus step-by-step loading via USB, Dropbox, and email with common fixes.

Read EPUB and PDF in your browser — no install, no signup. Files stay on your device. Includes dark mode, font controls, TOC, bookmarks, and full-text search.