Use Cases

PDFBook for everykind of reader.

Manga, academic papers, technical books, self-scanned volumes: PDFBook is built for how you actually use PDFs. Pick your use case and see how it fits.

Meet Bookie: Your AI Reading Companion

A PDF AI assistant that uses your own API key.

Bookie is PDFBook's AI reading companion. Bring your own OpenAI, Claude, or OpenRouter key, or run local with Ollama. Zero token markup, private by design. Free to start.

Floating / Always-on-Top PDF Reader

Read a PDF on top of every other window.

PDFBook's Floating Reader pins a PDF on top of any app so you can read while you write or code. Resize, h/v toggle, fast navigation. Free 60 min/month, unlimited on Pro.

Offline PDF Converter

Convert files to PDF without uploading anything.

Convert EPUB, Word (DOCX), Kindle (MOBI/AZW), comics, Markdown, and HTML to PDF entirely on your device. No upload, no account, fully private. Free desktop app for Windows, macOS, Linux.

For Manga & Comic Readers

A manga PDF reader built for desktop, with page-flip.

Page-flip mode with sound, right-to-left reading, and library management for manga and comic PDF collections.

For Researchers & Academics

A PDF reader built for research papers and academic life.

Organize hundreds of papers with folders, tags, and notes. No 2 GB cloud limit. Safe for unpublished work.

For Software Engineers

A PDF reader made for technical books and programming.

Fast dual-engine rendering for 500+ page books. Organize by language and topic with tags.

PDF Library Management

Finally, a real library for your PDF collection.

Folders, tags, ratings, reading state, and full-text search. Turn your PDF folder into a real library.

Privacy-First PDF Reader

A PDF reader that never phones home.

Zero telemetry, no account, no cloud upload. 14-day offline grace. A privacy-first PDF reader by design.

No Subscription Required

Pay once, read forever. $89 Lifetime, no subscription.

$89 Lifetime: no subscription, no cancellation fee. Break even vs Adobe in under 5 months.

For Self-Scanned Books

A reader built for your self-scanned book library.

Flip mode for scanned pages, large file support, and library management for your digitized book collection.

Image to PDF Creator

Combine images into one PDF without uploading anything.

Combine JPG and PNG images into one PDF on your device. Drag, reorder, set fit and margin, add a password. No upload, no account. Free for Windows, macOS, Linux.

Screen Capture to PDF

Capture your screen into a PDF, page by page.

Capture a window to PDF on Windows: pick a window, crop the region, and PDFBook pages through and assembles each screen into one PDF. On-device, nothing uploaded.

CBZ to PDF

Convert CBZ and CBR comics to PDF right on your device.

Convert CBZ and CBR comics to PDF on your device with PDFBook's built-in converter, no Calibre. Manga reads right-to-left in flip mode. Free desktop app.

Extract Images from PDF

Extract images from a PDF and save them as PNG.

Extract images from a PDF and save them as PNG on your device. Export all PDF images or just the ones you pick, even from password-protected files. No upload.

Web PDF Reader

Read PDFs in your browser with no upload and no account.

Read PDFs in your browser with PDFBook's web PDF reader. Open PDFs online at /reader with no account, no install, and no upload. Flip and Vertical modes; PWA.

Password Protect PDF

Password protect a PDF without uploading it.

Password protect a PDF on your device: PDFBook adds a password and encryption to the output file, no upload needed. Encrypt and lock a secure PDF locally.

Want the short version?

Free for 50 books, $89 once for Lifetime, $6.99/month Pro. No telemetry. No account. Works offline.

Try PDFBook free See pricing