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Free EPUB to PDB Converter Online

Convert EPUB files to PDB (Palm Digital Media format) online for free. Fast, secure browser-based conversion with no software to install.

Converting EPUB to PDB re-encodes the document into the PDB container. Text, headings, tables, images, and basic formatting are preserved; advanced features (macros, comments, tracked changes) may not carry across all format pairs.

Drop EPUB files here
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Files deleted within 24 hours TLS-encrypted upload No sign-up required Batch convert supported

Max file size 50MB. Sign up for more.

Convert EPUB Documents in 3 Steps

Move a document into a more shareable or editable format while keeping layout, text structure, tables, and embedded media intact where possible.

Upload the Original Document

Drag and drop your EPUB file or click to browse. Supports text documents, reports, manuscripts, and files with images, tables, and formatting. Batch upload multiple files at once.

Convert the Layout

Our engine converts your EPUB to PDB while preserving text formatting, paragraph styles, images, tables, headers, footers, and page layout as faithfully as possible.

Download the Converted File

Download your converted PDB document instantly. For batch conversions, download all files individually or as a single ZIP archive. No watermarks or quality loss.

Why Choose Our Document Converter

Wider Compatibility

PDB is supported by more applications and platforms than EPUB. Converting ensures your document can be opened, edited, and shared without issues.

Preserve Formatting

Our converter maintains text styles, fonts, images, tables, headers, footers, and page layout during conversion. Your document looks the same in PDB.

Professional Sharing

Convert to PDB before sending documents to clients or colleagues. Ensures your document is received exactly as intended.

Modernize Legacy Files

Upgrade older EPUB documents to PDB format for better security, smaller file sizes, and improved compatibility with modern office software.

Batch Convert Multiple Files

Convert entire folders of EPUB documents to PDB at once. Upload multiple files, convert simultaneously, and download as a ZIP archive.

Fast & Secure

Upload your EPUB document and get a perfectly formatted PDB file in seconds. Your files are processed privately and securely.

About the EPUB Format

EPUB (Electronic Publication) is the most widely adopted open ebook standard, maintained by the W3C (formerly IDPF) and published as ISO/IEC 23736. First released in 2007 as the successor to the Open eBook format, EPUB uses XHTML for content, CSS for styling, and ZIP compression for packaging. Its defining feature is reflowable text — content automatically adapts to fit any screen size, allowing readers to adjust font size, margins, and line spacing on phones, tablets, and dedicated eReaders.

EPUB is natively supported by Apple Books, Kobo, Nook, Google Play Books, and nearly every eReader and reading app outside the Kindle ecosystem. EPUB 3, the current version, adds support for embedded fonts, SVG graphics, MathML equations, JavaScript interactivity, audio/video embedding, and comprehensive accessibility features including text-to-speech and screen reader support. While Kindle devices do not read EPUB natively, the format can be converted to MOBI or AZW3 for Kindle compatibility.

EPUB to PDB FAQ

Quick answers about compatibility, quality, metadata handling, and the most common reasons to convert EPUB files to PDB.

How do I convert EPUB to PDB?

Upload your EPUB and click Convert. iFormat converts it to PDB (Palm Database) ebook format. Download instantly — free, no sign-up required.

What is PDB format?

PDB (Palm Database) is a legacy ebook format originally used on Palm OS devices (PalmPilot, Treo). It's now a niche format supported by some older e-reader apps. Most modern e-readers use EPUB or MOBI.

Why convert EPUB to PDB?

Convert to PDB only if you have a specific need for PDB format — such as supporting a legacy Palm device or an older reading app that requires PDB. For most use cases, EPUB or MOBI are better choices.

What apps support PDB?

PDB is supported by Mobipocket Reader, some older versions of FBReader, and Palm OS emulators. It's a legacy format with limited current support.

Is EPUB to PDB conversion free?

Yes — completely free with no watermarks.

Document Conversion Guides for Free EPUB to PDB Converter Online

Read guides about PDF, Word, and editable document workflows connected to Free EPUB to PDB Converter Online.