AZW to PDB Converter
Convert AZW to PDB online for free. Fast, secure, and high-quality conversion with no sign-up or software required.
Maximum file size is 1GB
Like RunConvert? Set us as a preferred source on Google.
Add to Preferred SourcesHow it works
Three steps to your converted file
Everything happens in your browser tab - upload, pick a format, download. The heavy lifting runs on our servers.
Upload your file
Drag and drop, click to browse, or paste a URL. Batches take up to 20 files at once - 230+ input formats across video, audio, image, document, and archive types.
Choose an output format
Pick from over a hundred output formats. Filter by category or search by name - every option is open to everyone, no account needed.
Convert & download
Hit Convert and grab your download link moments later. Originals are erased when the job completes; results are cleared within about an hour.
What is an AZW file?
The AZW format is Amazon's proprietary eBook file type, fundamentally based on the Mobipocket (MOBI) standard but encapsulated with Amazon's digital rights management (DRM) scheme. Structurally, it utilizes a Palm Database (PDB) container format and typically implements PalmDOC (LZ77) or Huffman compression algorithms to store reflowable text and low-resolution raster images. Originally introduced with the first Kindle in 2007, it is restricted to the Amazon ecosystem and lacks the advanced styling capabilities found in the newer KF8 standard.
How to open an AZW file
Due to inherent DRM encryption, AZW files are natively readable only on Amazon Kindle hardware and the Kindle application for Windows, macOS, iOS, and Android. For non-DRM AZW files, open-source eBook management software such as Calibre can decode and convert the content, though modifying DRM-protected files requires circumvention tools that may violate terms of service.
AZW Technical Info
- Full Name
- Amazon Kindle eBook Format
- Developed By
- Amazon
- Initial Release
- 2007
- MIME Type
- application/vnd.amazon.ebook
What is a PDB file?
In the context of eBooks, the PDB (Palm Database) format is a sequential record-based container originally engineered for the Palm OS platform. The file structure consists of a fixed-length header containing metadata (such as Type and Creator IDs) followed by a list of record offsets and the raw data records. For digital reading, these records typically contain text compressed via the PalmDOC (LZ77) or zTXT algorithms, effectively acting as a wrapper for eReader content.
How to open a PDB file
Modern desktop operating systems do not include native handlers for Palm OS databases. Users looking to access eBook content within PDB files should use Calibre or STDU Viewer, which can interpret the specific PalmDOC compression. Note that PDB is also an extension for 'Program Database' debug files in Visual Studio; these are binary disparate and require Microsoft development tools, not eBook readers.
PDB Technical Info
- Full Name
- Palm Database
- Developed By
- Palm, Inc.
- Initial Release
- 1996
- MIME Type
- application/vnd.palm
More tools
Related conversions
Why RunConvert
The fastest way to convert any file
Purpose-built for speed, privacy, and breadth of format support.
Convert AZW to PDB in seconds
Every AZW to PDB conversion runs on our servers, so your device stays fast and the output quality stays intact.
Fast, cloud-powered
No queue, no waiting. Files are processed on high-performance servers and returned in seconds, even for large files.
Secure & private
Encrypted in transit and never shared with anyone. Uploads are erased the moment your job completes, and results shortly after.
Free - no account needed
Convert without creating an account - no credit card, no trial clock. Sign in only if you want history and higher daily limits.
Developer API
Convert AZW to PDB via API
Automate AZW to PDB conversions in three steps: create a job, upload your file, then poll for the result.
# 1. Create job
curl -X POST https://api.runconvert.com/v3/jobs \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"tag": "azw-to-pdb",
"tasks": {
"upload-file": {
"operation": "import/upload"
},
"convert": {
"operation": "convert",
"input": "upload-file",
"output_format": "pdb"
},
"export-result": {
"operation": "export/url",
"input": "convert"
}
}
}'
# 2. Upload your file (use upload_url from the response)
curl -X PUT "$UPLOAD_URL" --upload-file input.azw
# 3. Poll for result
curl https://api.runconvert.com/v3/jobs/$JOB_ID?include=tasks \
-H "Authorization: Bearer YOUR_API_KEY"Replace YOUR_API_KEY with your RunConvert API key. Get your free API key at runconvert.com/api.