Browser-Only · No Upload · Always Free

Word ↔ PDF Converter

Convert DOCX to PDF, PDF to Word, Split PDFs, Merge PDFs, Compress, Password Protect — all in your browser. No server upload, no signup.

📝 Word→PDF 📄 PDF→Word ✂️ Split PDF 🔗 Merge PDFs 🗜️ Compress 🔒 Password Protect 👁 Live Preview 🔒 100% Private
📊 Need to convert Excel to PDF? Try KJSynthora's free Excel to PDF converter — multi-sheet, custom themes, ZIP download.
Excel to PDF →
📁 Upload & Settings
📂
Drop DOCX or PDF Files
Click or drag · Multiple files supported
0
Files
0
Pages
0KB
Size
Ready
Options
Advanced OCR
Layout Preserve
Table Extraction
Preserve Metadata
PDF/A Compliance
Processing...0%
⚡ Ready — Upload a DOCX or PDF file to begin
👁 Live Preview
100%
📄

Upload a file to see live preview

✂️ Split PDF
📄
Upload PDF to Split
Choose how to split pages
📌 Output downloads as a ZIP file containing all split PDFs
Splitting...0%
Upload a PDF to split
👁 Preview
✂️

Upload PDF to preview

🔗 Merge PDFs
📚
Upload Multiple PDFs
Select 2+ PDFs · Drag to reorder
💡 Drag file items to reorder before merging
Merging...0%
Upload 2+ PDFs to merge
📋 Merge Order
No files uploaded yet. Upload PDFs and drag to reorder.
🗜️ Compress PDF
🗜️
Upload PDF to Compress
Reduce file size for email & sharing
Compressing...0%
Upload a PDF to compress
📊 Compression Analysis
Upload a PDF to see compression analysis.
🔒 Password Protect PDF
🔒
Upload PDF to Protect
Add password & permissions
Permissions
Allow Printing
Allow Copy Text
Allow Editing
Allow Annotations
⚠️ Browser-based protection adds metadata-level restriction. For AES encryption, use a server-side tool.
Protecting...0%
Upload a PDF to protect
🔐 Security Info
🔑 Open Password
Required to open and view the PDF. Without this, the file cannot be opened.
👑 Owner Password
Required to change permissions, print in high quality, or edit the PDF.
📋 Permissions
Control exactly what users can do — print, copy, edit, or annotate.
📋 Conversion History
No conversions yet. Start converting files!
Real Conversion
Actual DOCX→PDF and PDF→DOCX conversion using jsPDF + mammoth.js in your browser.
👁
Live Preview
See PDF pages rendered with PDF.js and DOCX content before converting.
✂️
Split & Merge
Split PDFs by page range, every N pages, or individually. Merge multiple PDFs into one.
🔒
Security
Add password protection and permission controls on your PDF files locally.
🔒
100% Private
Files never uploaded to any server. All processing in your browser using JavaScript.
📋
History
Session history tracks all your conversions. Re-download PDFs from the History tab.

Why Use KJSynthora Word to PDF Converter?

🔒

100% Private

Files never uploaded to any server. All conversion happens locally in your browser.

📝

DOCX → PDF

Convert Microsoft Word documents to professional PDFs with preserved formatting, tables, and headings.

📄

PDF → Word

Extract text from any PDF into an editable DOCX file. Supports custom page range selection.

✂️

Split PDF

Split by page range, every N pages, half, or extract each page individually into separate PDFs.

🔗

Merge PDFs

Combine multiple PDFs into one. Drag to reorder pages before merging.

🗜️

Compress PDF

Reduce PDF file size by up to 72%. 4 compression levels with image quality control.

Frequently Asked Questions

Is the Word to PDF converter free?
Yes, completely free. All features — Word to PDF, PDF to Word, Split, Merge, Compress, Password Protect — are free with no signup, no account, and no file limits.
Is my document safe? Does it get uploaded?
Your files are never uploaded to any server. All conversion — Word to PDF, PDF splitting, merging — happens entirely in your browser using JavaScript libraries (jsPDF, mammoth.js, PDF.js). Your documents stay 100% private on your device.
How do I convert Word to PDF?
Upload your DOCX file using the dropzone. Choose page size, orientation and font size options. Click "Word → PDF" button. The PDF downloads instantly to your computer. No waiting, no server processing.
Can I merge multiple PDFs?
Yes! Click the Merge tab, upload multiple PDF files. Drag the file items to reorder them, then click Merge. The combined PDF downloads instantly.
How much can I compress a PDF?
Depending on the content, you can reduce PDF size by 10% (Low), 35% (Medium), 55% (High), or up to 72% (Extreme). Image-heavy PDFs compress much more than text-only PDFs.

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📊
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📄
PDF Merge
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📋
PDF to Excel
Extract PDF tables
🗜️
Image Compressor
Compress images

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All 90+ tools are completely free. If they save you time, consider a small support!

☕ Support KJSynthora