PDB to PGX Converter

Seamless PDB to PGX conversion in your browser

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Nothing to Install

The PDB to PGX converter runs in your web browser. No plugins, extensions, or desktop applications needed — just open and use.

Multi-File Upload

Handle multiple PDB files in one go. Each is converted to PGX independently, and all downloads are available together.

Data Protection Built In

Your PDB files are erased as soon as conversion finishes. PGX outputs are automatically removed within 24 hours.

How to convert PDB to PGX

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

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

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

About formats

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

PGX is a simple single-component raster image format defined as part of the JPEG 2000 standard (ISO/IEC 15444) for use in conformance testing and verification of JPEG 2000 codec implementations. Introduced around 2000 alongside the JPEG 2000 specification itself, PGX files store a single image component (one color channel or grayscale plane) with a text header followed by raw pixel data, providing an unambiguous reference representation against which encoder and decoder outputs can be compared sample by sample. The header is a single ASCII line specifying endianness (ML for big-endian, LM for little-endian), signedness (+ for unsigned, - for signed), bit depth (1 to 32 bits), width, and height. The pixel data follows as raw binary values, each occupying the minimum number of bytes needed for the specified bit depth, with one value per pixel. For multi-component images (like RGB), each component is stored in a separate PGX file. The format's deliberate simplicity — no compression, no metadata, no multi-channel support — ensures there are no ambiguities in interpretation that could mask codec bugs. One advantage is verification precision: PGX's uncompressed, exactly-specified representation allows bit-exact comparison of decoded JPEG 2000 output against reference images, essential for certifying that a codec implementation conforms to the standard. The format's role in the JPEG 2000 conformance testing framework means it is implemented by every serious JPEG 2000 codec (OpenJPEG, Kakadu, etc.) and used in the official ISO conformance test suite. PGX files can also be processed by ImageMagick and various JPEG 2000 development tools.

Developer: Joint Photographic Experts Group

Initial release: 2000

Frequently Asked Questions

Why convert PDB to PGX?

PDB is an obsolete Palm format. Converting to PGX provides reference image testing and opens your content to modern viewers.

What programs open PGX files?

For PGX files, try JPEG 2000 reference software, ImageMagick. Cross-platform support means you can view them on any operating system.

Does the converter work on mobile devices?

It works on any device with a web browser — smartphones, tablets, laptops, and desktops all handle the conversion.

Will image dimensions change during conversion?

No — the converter keeps the same image size. Dimensions only change if you explicitly set resize options.

Is the conversion process secure?

Security is built in — source PDB files and converted PGX outputs are automatically removed from servers after processing.

What if my PDB file is corrupted?

Corrupted files are detected during upload. If your PDB file has structural issues, the converter will alert you immediately.

Related Conversions

PDB to PDF

PDB to EPUB

PDB to MOBI

PDB to DOC

PDB to JPG

PDB to SVG

PDB to DOCX

PDB to TXT

PDB to FB2

PDB to GIF

PDB to XLS

PDB to PNG

PDB to RTF

PDB to CSV

PDB to XLSX

PDB to JPEG

PDB to DXF

PDB to PPT

PDB to PPTX

PDB to ODT

PDB to HTML

PDB to AI

PDB to PS

PDB to TIFF

PDB to PLT

PDB to AZW3

PDB to WBMP

PDB to BMP

PDB to WEBP

PDB to DDS

PDB to SNB

PDB to DOCM

PDB to PSD

PDB to JP2

PDB to LRF

PDB to PBM

PDB to RB

PDB to TCR

PDB to TGA

PDB to PCX

PDB to ICO

PDB to CUR

PDB to PGM

PDB to PPM

PDB to EXR

PDB to FAX

PDB to FTS

PDB to G3

PDB to HDR

PDB to HRZ

PDB to IPL

PDB to MAP

PDB to MNG

PDB to MTV

PDB to OTB

PDB to PAL

PDB to PALM

PDB to PAM

PDB to PCD

PDB to PCT

Specific converters

PNG to PGX

JPG to PGX

PDF to PGX

JPEG to PGX

DXF to PGX

DOCX to PGX

HTML to PGX

BMP to PGX

SVG to PGX

WEBP to PGX

PPTX to PGX

BIN to PGX

JFIF to PGX

AI to PGX

ICO to PGX

GIF to PGX

DOC to PGX

CSV to PGX

HEIC to PGX

XLSX to PGX

XLS to PGX

TXT to PGX

PSD to PGX

DST to PGX

PCX to PGX

EPS to PGX

XPS to PGX

ABW to PGX

DBK to PGX

KWD to PGX