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Episteme: PDF & eBook Reader app icon

Episteme: PDF & eBook Reader

An offline-first document and ebook reader with PDF markup, OCR, text-to-speech, custom fonts, and optional AI tools.

By Aryan RajReleased 2026/09/22No ratings yetOfficial store informationPublished 2026/11/04Checked 2026-11-04

Overview

A closer look at Episteme: PDF & eBook Reader.

Episteme Reader is a local-first library for ebooks and documents, including PDF, EPUB, MOBI, AZW3, FB2, ODT, DOCX, comics, Markdown, HTML, and plain text. Readers can switch between paginated pages and continuous scrolling, import custom fonts, and organize books into shelves and collections. PDFs can be marked up with drawing tools and text boxes, then exported with vector detail. Search works across supported formats, including OCR for scanned PDFs, while the device's text-to-speech can read documents aloud. Pro adds contextual dictionary definitions and concise summaries. The listing says core features work offline without an account; optional AI or online features process content in memory without storing it.

A closer look

App screenshots

Episteme: PDF & eBook Reader official iOS screenshot 1Episteme: PDF & eBook Reader official iOS screenshot 2Official iOS store screenshotOfficial iOS store screenshot

Choose with confidence

The useful details.

What it does

  • Read common ebook, office, comic, Markdown, HTML, and plain-text formats.
  • Annotate PDF pages, add text boxes, and export vector-preserving markups.
  • Search documents and use OCR to find text in scanned or image-based PDFs.
  • Listen with device text-to-speech and organize books into custom shelves.

A good fit for

  • Readers who need one offline library for ebooks, PDFs, and annotated work documents.

Worth knowing

  • Context-aware definitions and page or chapter summaries are Pro features; the listing does not specify prices.
  • Optional AI or online tools may process selected content remotely, unlike the offline core.

Frequently asked questions

Answers based on the app’s official listing and reviewed information.

What is Episteme: PDF & eBook Reader used for?

An offline-first document and ebook reader with PDF markup, OCR, text-to-speech, custom fonts, and optional AI tools.

What can you do with Episteme: PDF & eBook Reader?

Read common ebook, office, comic, Markdown, HTML, and plain-text formats. Annotate PDF pages, add text boxes, and export vector-preserving markups. Search documents and use OCR to find text in scanned or image-based PDFs. Listen with device text-to-speech and organize books into custom shelves.

Who is Episteme: PDF & eBook Reader designed for?

Readers who need one offline library for ebooks, PDFs, and annotated work documents.

What should you know before downloading Episteme: PDF & eBook Reader?

Context-aware definitions and page or chapter summaries are Pro features; the listing does not specify prices. Optional AI or online tools may process selected content remotely, unlike the offline core.

Does Episteme: PDF & eBook Reader include paid features?

Episteme Pro unlocks contextual definitions and summaries; current pricing and billing terms are shown in the app.

Which platforms support Episteme: PDF & eBook Reader?

Greatooly's reviewed app information lists iOS.

Researched from official sources; this is not a hands-on review. Last checked 2026-11-04.

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