OXPS to PDB Converter

OXPS to PDB ebook conversion — free and online

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Legacy Device Support

PDB keeps your content accessible on older Palm-based readers and apps that cannot handle modern ebook formats.

Browser-Based Tool

No Palm software needed — convert OXPS to PDB from any modern browser on any device.

Fast Delivery

Server-side conversion finishes in seconds. Your device does none of the processing work.

How to convert OXPS to PDB

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose pdb or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your pdb file right afterwards

About formats

OXPS (Open XPS) is a fixed-layout document format standardized as ECMA-388 in June 2009, representing an evolution of Microsoft's original XPS specification. The format packages fixed-layout pages, fonts, images, and metadata in a ZIP-based Open Packaging Conventions container — the same packaging framework used by DOCX, XLSX, and other Office Open XML formats. Each page is described using an XML markup language that specifies paths, glyphs, images, and canvas elements with precise coordinates, producing documents that render identically regardless of the viewing device or printer. OXPS incorporated several changes from the original XPS: the use of JPEG XR for high dynamic range images, support for the Open Packaging Conventions 2nd edition, and alignment with the Ecma standardization process. Windows 8 and later generate OXPS (rather than XPS) when printing to the Microsoft XPS Document Writer. One advantage is standards-based document fidelity — as an Ecma standard, OXPS provides a vendor-neutral, fully specified format for documents that must look identical everywhere they are rendered, essential for legal filings, regulatory submissions, and archival records. The fixed-layout model is another strength: unlike reflowable formats, OXPS documents preserve exact page composition including precise glyph positioning and vector graphics. Built-in support in Windows and the .NET framework provides native viewing and creation capabilities without third-party software.
Developer: Ecma International
Initial release: June 2009
PDB (Palm Database) is a generic database container format created by Palm, Inc. for the Palm OS platform, first appearing with the original PalmPilot in March 1996. In the ebook context, PDB files most commonly use the PalmDOC or Plucker encoding to store readable text with basic formatting. The format consists of a 78-byte header identifying the database name, creation date, and record count, followed by a record index table and the data records themselves. PalmDOC-encoded PDB files use a simple LZ77-based compression scheme to pack plain text efficiently, while Plucker extends this with HTML rendering, image support, and hyperlink navigation. PDB ebooks powered a thriving mobile reading ecosystem years before dedicated e-readers existed — millions of Palm OS users carried entire libraries on devices like the Palm V, Tungsten, and Treo handhelds. A primary advantage is extreme simplicity: the flat record structure and minimal overhead mean PDB files parse instantly even on severely constrained hardware with limited memory and processing power. The open, well-documented structure is another strength, having spawned numerous reader applications across Palm OS, Windows, and later mobile platforms. Though the Palm platform is long discontinued, PDB ebooks remain accessible through conversion tools and readers like Calibre, and the format holds historical significance as one of the earliest practical mobile ebook solutions.
Developer: Palm, Inc.
Initial release: March 1996

Frequently Asked Questions

Why convert OXPS to PDB?

PDB is used by Palm-based readers and legacy ebook apps — useful for older devices that do not support modern formats.

What readers open PDB files?

Palm-based e-readers, iSilo, and certain legacy ebook applications handle PDB format natively.

Is PDB still in use?

PDB is a legacy format. It remains useful for specific older devices or software that lack support for EPUB or MOBI.

How fast is the conversion?

Cloud-based processing typically delivers your PDB file within seconds of uploading the OXPS source.

Is OXPS to PDB free?

Yes — the converter is free. Premium plans offer additional capacity for frequent or bulk conversions.

Can I convert several OXPS files?

Batch upload is supported — convert multiple OXPS files to PDB in a single pass.

OXPS to PDB Quality Rating

4.6 (10 votes)
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