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In our daily work, we often need to merge multiple PDF files into one. While there are many PDF mergers available, most require payment or have limitations. it365 PDF Merge Tool is a completely free online PDF merger that requires no downloads or installation, running directly in your browser.
Combining PDF files is a common requirement in office work, such as merging report chapters, contract attachments, or study materials into a complete document. With the it365 PDF Merge Tool, you can easily combine multiple PDFs.
Ensure all the PDF files you want to combine are stored in an easily accessible location. We recommend renaming them in your preferred order.
You can select and upload multiple PDF files at once or add them one by one. Drag-and-drop is also supported for extra convenience.
Adjust the order of the PDF files using the buttons to ensure the merged structure is exactly as expected.
Click the "Merge & Download PDF File" button, and the system will combine the PDFs into a single document.
Merging two PDF files is the most common PDF task—whether combining a contract with its annexes, or putting split documents back together. it365 PDF Merger does it quickly.
Click the upload button to select the PDF file that should go first. This file will appear at the beginning of the merged document.
Upload the second PDF file. If the order is incorrect, you can adjust their sequence using the buttons.
Check the file list to confirm the order is correct. You will also see the page count for each file.
Click the "Merge & Download PDF File" button to combine the two files seamlessly.
After merging, the new PDF file will download automatically to your local device.
All processing is done locally in your browser. No files are uploaded to any server, preventing data leakage and protecting your privacy.
Uses advanced client-side processing, allowing even large files to be merged in seconds.
No compression is applied during merging, preserving original resolution and clarity.
Supports merging of all standard PDF file versions.
| Feature | Status | Details |
|---|---|---|
| Text PDF | ✅ Supported | Fully supports text-based PDFs (non-scanned), including complex documents with mixed text and images. Preserves original layout and formatting. |
| Scanned PDF | ✅ Supported | Fully supports scanned PDFs, including scanned books, documents, and image-to-PDF formats, with lossless image quality after merging. |
| Large PDF Files | ✅ Supported | Supports extra large files up to 2GB. Merges hundreds or thousands of pages quickly with excellent processing speed. |
| Batch Merging | ✅ Supported | Allows importing and merging multiple multi-page PDFs simultaneously to greatly improve efficiency. |
| Multilingual PDF Support | ✅ Supported | Perfectly supports Chinese/English and multilingual PDFs; no encoding issues or garbled text, preserving original fonts and formatting. |
| Local Offline Processing | ✅ Supported | 100% processed locally in your browser. Files are never uploaded to our servers, ensuring privacy and enabling offline use. |
| macOS & iOS Support | ✅ Supported | Supports macOS and iOS. Just open your browser to use the tool on Mac, iPhone, or iPad. |
| Encrypted PDFs | ❌ Not Supported | Password-protected or encrypted PDFs are not supported. Please remove the password protection before merging. |
| Damaged PDFs | ❌ Not Supported | Cannot process corrupted or malformed PDF files. We recommend repairing them first or obtaining a healthy copy. |