PDF Merger
Combine multiple PDF documents into a single file directly in your browser. 100% private and secure, no server uploads required. Great for contracts and invoices.
Secure PDF Merger
Combine multiple PDF files into a single document entirely within your browser. Files never leave your computer, ensuring 100% privacy for sensitive documents like contracts, invoices, or medical records.
Documents to Merge0 Files
No PDFs added yet.
Upload 2 or more files to start merging.
Build & Export
Secure, Client-Side PDF Merging
Unlike most online PDF tools that force you to upload your sensitive documents to a remote server, our PDF Merger uses advanced WebAssembly and React to combine your files directly inside your web browser.
This means your legal contracts, tax documents, and personal invoices never leave your computer. There is zero risk of data interception, no files saved on random servers, and no limits on file combinations (subject to your device's memory).
How to Combine PDFs
- Select Files: Click the "Select PDFs" button and choose two or more PDF files from your device.
- Reorder: Use the up and down arrows next to each file to arrange them in the exact order you want them to appear in the final document. The top file will be the first page.
- Merge: Click the purple "Merge PDFs" button. The tool will instantly stitch the pages together natively.
- Download: Click the green "Save Merged PDF" button that appears to download the finalized document to your computer.
Why the Order Matters
When combining legal documents (like appending an addendum to terms of service) or merging scanned receipts for an expense report, maintaining chronological or logical order is important. The list UI allows you to visually stack your documents exactly how the final PDF page sequence will be generated.
The tools and calculators provided on The Simple Toolbox are intended for educational and informational purposes only. They do not constitute financial, legal, tax, or professional advice. While we strive to keep calculations accurate, numbers are based on user inputs and standard assumptions that may not apply to your specific situation. Always consult with a certified professional (such as a CPA, financial advisor, or attorney) before making significant financial or business decisions.
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