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Free Online PDB Converter — Convert Palm Digital Media Files

Convert PDB (Palm Digital Media) ebook files to EPUB, MOBI, PDF, and modern formats. PDB is a legacy Palm OS ebook format — convert to EPUB or PDF for modern eReaders.

Drop PDB 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.

How to Convert PDB Files Online — Free & Instant

Convert legacy Palm Digital Media PDB ebooks to EPUB, PDF, MOBI, and modern formats.

Upload Your PDB File

Drag and drop PDB (Palm Digital Media) files. PDB was used on Palm OS devices and early eReaders — convert to read on modern devices.

Select a Modern Format

Choose EPUB for most eReaders, MOBI or AZW3 for Kindle, or PDF for universal reading and printing.

Download the Converted File

Download your converted ebook and transfer to your modern eReader. Text content and basic structure are preserved.

Why Convert PDB Ebooks?

Read on Any eReader

Convert PDB to EPUB for Kobo, Apple Books, and Nook, or to MOBI/AZW3 for Kindle. Read your ebooks on any device regardless of the original format.

Share as PDF

Convert PDB to PDF for universal sharing — PDF works on every device without special ebook software. Perfect for printing or emailing chapters.

Switch Ecosystems

Moving from Kindle to Kobo? Apple Books to Nook? Convert your PDB ebooks to your new device's format without losing your library.

Future-Proof Your Library

Legacy formats may lose support over time. Convert PDB to modern, actively maintained formats like EPUB to ensure long-term access to your ebook collection.

Batch Convert Libraries

Upload multiple PDB files and convert your entire ebook library at once. No need to process files one by one — save hours of manual conversion work.

No Software Required

Convert PDB ebooks directly in your browser — no desktop apps, no plugins. No watermarks added, formatting preserved, and files are deleted from our servers within 1 hour.

About the PDB Format

PDB (Palm Database) is a legacy ebook format originally developed for Palm OS handheld devices in the late 1990s. Used by Palm Digital Media (formerly Peanut Press) and later eReader, PDB files stored ebooks as compressed text databases optimized for the limited storage and processing power of Palm PDAs. The format supported basic text formatting, chapter navigation, bookmarks, and simple image embedding.

With the discontinuation of Palm OS devices and the rise of modern eReaders and smartphones, PDB has become an obsolete format. Barnes & Noble acquired the eReader platform and migrated its catalog to EPUB for the Nook ecosystem. Ebooks stored in PDB format can no longer be read on current devices without conversion. Converting PDB files to EPUB, PDF, or MOBI rescues these legacy ebooks for use on modern eReaders, tablets, and reading apps, preserving the text content and basic structure of the original files.