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HomeFB2 vs PDB
.fb2
.pdb

FB2 vs PDB

Compare FictionBook and Palm Database formats — understand the key differences and when to use each

Format Overview

FB2

FictionBook

FictionBook (.fb2) is a ebook file format.

.fb2ebook

PDB

Palm Database

Palm Database (.pdb) is a ebook file format.

.pdbebook

FB2 vs PDB: Feature Comparison

FeatureFB2PDB
Full NameFictionBookPalm Database
File Extension.fb2.pdb
Categoryebookebook
Free to Convert✓ Yes✓ Yes
Browser Support✓ All Browsers✓ All Browsers
Convert to Each Other✓ Yes✓ Yes

When to Use FB2 vs PDB

Use FB2 when you need:

  • •Files in FictionBook format for maximum compatibility
  • •Industry-standard ebook format support
  • •Wide software and platform compatibility

Use PDB when you need:

  • •Files in Palm Database format for specific workflows
  • •Optimized ebook format features
  • •Modern format advantages and smaller file sizes

Convert Between Them

FB2 PDBPDB FB2
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Learn More About These Formats

FB2 Converter PDB Converter

Frequently Asked Questions

What is the difference between FB2 and PDB?
FB2 (FictionBook) and PDB (Palm Database) are both ebook file formats. FB2 files use the .fb2 extension while PDB uses .pdb. They differ in compression, quality, compatibility, and intended use cases.
Can I convert FB2 to PDB for free?
Yes! Convert999 lets you convert FB2 to PDB completely free, directly in your browser. No file upload to any server, no registration needed — your files stay private on your device.
Which is better, FB2 or PDB?
It depends on your use case. FB2 (FictionBook) may be better for certain workflows, while PDB (Palm Database) excels in others. Consider factors like file size, quality, software compatibility, and your specific needs.
Is it safe to convert files on Convert999?
Absolutely. Convert999 processes all files 100% locally in your browser. Your files are never uploaded to any server, ensuring complete privacy and security.

FB2 Converter

Convert from FB2

PDB Converter

Convert from PDB

File Tools

Compress, resize, merge

Convert to FB2

All sources → FB2

Convert to PDB

All sources → PDB

Format Statistics

Trends & data 2025

More Format Comparisons

JPGvsPNGPNGvsWEBPJPGvsWEBPSVGvsPNGHEICvsJPGBMPvsJPGTIFFvsJPGGIFvsPNG