PDF to AZW3 Converter - Free Online Tool | CalcsHub
🔖
Bookmark your favorite tools and return easily anytime!
📚 PDF to AZW3 Converter
Convert your PDF files to Amazon Kindle AZW3 format instantly and securely in your browser
📄
Click to Upload or Drag & Drop
Upload your PDF file (Max 50MB)
✓ Conversion completed successfully!
⚠ Error during conversion. Please try again.
Part of CalcsHub.com - Your Trusted Solution Hub
`;updateProgress(85, 'Creating AZW3 package...');const zip = new JSZip();
zip.file('mimetype', 'application/x-mobipocket-ebook', { compression: 'STORE' });
const metaInf = zip.folder('META-INF');
metaInf.file('container.xml', `
`);const oebps = zip.folder('OEBPS');
const uuid = generateUUID();
const contentOpf = `
${escapeHtml(title)}
${escapeHtml(author)}
en
urn:uuid:${uuid}
`;oebps.file('content.opf', contentOpf);const tocNcx = `
${escapeHtml(title)}
Start
`;oebps.file('toc.ncx', tocNcx);
oebps.file('content.html', htmlContent);updateProgress(95, 'Generating AZW3 file...');const blob = await zip.generateAsync({
type: 'blob',
mimeType: 'application/x-mobipocket-ebook',
compression: 'DEFLATE',
compressionOptions: { level: 9 }
});convertedBlob = blob;updateProgress(100, 'Conversion complete!');setTimeout(() => {
progressContainer.classList.remove('show');
downloadBtn.classList.add('show');
showSuccess();
convertBtn.disabled = false;
}, 500);} catch (error) {
console.error('Conversion error:', error);
showError('Conversion failed. Please try again with a different PDF file.');
progressContainer.classList.remove('show');
convertBtn.disabled = false;
}
}function downloadAZW3() {
if (!convertedBlob) return;const url = URL.createObjectURL(convertedBlob);
const a = document.createElement('a');
a.href = url;
const outputName = (bookTitle.value || uploadedFile.name.replace('.pdf', '')).replace(/[^a-z0-9]/gi, '_');
a.download = outputName + '.azw3';
document.body.appendChild(a);
a.click();
document.body.removeChild(a);
URL.revokeObjectURL(url);
}function generateUUID() {
return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
const r = Math.random() * 16 | 0;
const v = c === 'x' ? r : (r & 0x3 | 0x8);
return v.toString(16);
});
}function escapeHtml(text) {
const div = document.createElement('div');
div.textContent = text;
return div.innerHTML;
}
