Free Online PDB to AZW3 Converter

Convert PDB to AZW3 online for free.

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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.

PDB to AZW3 FAQ

Quick answers about compatibility, quality, metadata handling, and the most common reasons to convert PDB files to AZW3.

Can I convert PDB books to AZW3 for my Kindle or Kobo?

Yes. Upload your PDB ebook and iFormat converts it to AZW3 with chapter structure, cover art, and formatting preserved. Load the AZW3 onto your Kindle, Kobo, Nook, or any eReader that supports the format.

How to convert PDB to AZW3 without losing the table of contents

Chapter navigation, the cover image, and text formatting all carry over during conversion. The AZW3 has proper chapter links so you can jump between sections on your eReader just like the original PDB.

Can I convert multiple PDB ebooks to AZW3 at once?

Yes — upload a batch of PDB files and iFormat converts them all to AZW3. Each book downloads separately or as a ZIP, so you can convert an entire library in one session.

Does the text still reflow after converting to AZW3?

Yes — AZW3 keeps text reflowable, so it adapts to any screen size and font setting on your eReader rather than being locked to a fixed page like a PDF.

Which reader is AZW3 for?

AZW3 is the AZW3 format best for its intended use. Convert your PDB to AZW3 when your eReader or app opens AZW3 more reliably, so the whole library works on one device.

Is there a file size limit for PDB to AZW3 conversion?

The free plan supports files up to 50 MB, which covers the large majority of PDB files. For longer or higher-resolution files, Starter raises the limit to 100 MB, Plus to 1 GB, and Pro to 5 GB.

Related Guides for Free Online PDB to AZW3 Converter

Helpful articles and explainers connected to this tool.

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