Convert Documents to PDB Online — Free eBook Converter
This free online converter transforms your documents into PDB (Palm Database) eBook format, making your content readable on Palm OS devices and compatible eBook readers — no software installation needed.
What is PDB format?
PDB stands for Palm Database, a file format originally developed for Palm OS handheld devices. It was widely used to store eBooks, databases, and other structured data on Palm PDAs and smartphones. A PDB eBook file typically contains plain or lightly formatted text packaged in the Palm database container structure, allowing early portable devices to store and display entire books in a compact format.
Several eBook reader applications — including older Palm OS readers and some cross-platform tools — still support PDB files, making the format relevant for anyone maintaining archives of legacy digital content or targeting Palm-compatible readers.
Why convert to PDB?
Converting your documents to PDB is useful in a number of situations:
- Palm device compatibility: If you own or support a Palm OS device, PDB is one of the native eBook formats it can read directly.
- eBook archiving: PDB is a simple, self-contained format suitable for long-term storage of text-based content without relying on complex DRM or proprietary structures.
- Legacy reader support: Some cross-platform eBook applications (such as older versions of Calibre-compatible readers) accept PDB files, giving you broad device coverage from a single file.
- Lightweight distribution: PDB files tend to be compact, making them easy to transfer over low-bandwidth connections or store on devices with limited memory.
Supported input formats
The converter accepts a wide range of common document formats as input, including PDF, DOC, DOCX, ODT, RTF, TXT, HTML, and other standard document types. Simply upload your source file, select PDB as the output format, and download the converted eBook.
Frequently asked questions
Is this PDB converter free to use?
Yes, the converter is completely free. No subscription, payment, or account is required to convert documents to PDB format.
What happens to my uploaded files after conversion?
Uploaded files are processed on the server solely to perform the conversion and are deleted automatically afterwards. Your files are not stored permanently or shared with third parties.
Which devices and apps can open PDB eBook files?
PDB files are natively supported on Palm OS devices. Many desktop eBook managers and readers, including certain configurations of Calibre and older Palm reader applications, can also open PDB files.
Do I need to create an account to convert files?
No account is needed for basic conversions. If you create a free account and log in, you can opt in to receive an email notification when your conversion is complete.
Will my document formatting be preserved in the PDB file?
PDB is primarily a text-based eBook format, so complex layout and rich formatting from the source document may be simplified during conversion. Plain text and basic structure are generally retained well.