Combine multiple PDF files into a single document quickly and easily.
or
Supported format: PDF
Max 20 files, 100MB per file
Click the upload button or drag and drop multiple PDF files into the upload area.
Arrange your PDFs in the desired order and select any additional options.
Click the merge button and download your combined PDF document.
You can merge up to 20 PDF files at once with our tool. Each file can be up to 100MB in size.
The combined size of all files should not exceed 500MB. For larger merges, you may need to process your files in smaller batches.
Yes, after uploading your files, you can drag and drop them in the file list to change their order before merging.
No, we maintain the original quality of your PDFs during the merge process. However, if you select the "Compress output file" option, there may be a slight reduction in quality to achieve a smaller file size.
Yes, all files are processed entirely in your browser, and we do not store your files on our servers. Your PDFs are never sent to our servers or third parties, and they are automatically deleted from your browser's memory after processing or when you close this page.
Important: While we process all documents locally in your browser for security, we recommend not uploading highly sensitive or confidential documents (such as those containing personal identification information, financial data, or trade secrets). For such documents, consider using offline desktop software for maximum security.
No, third parties do not have access to the content of your documents. This tool uses JavaScript libraries (like pdf-lib) that run entirely in your browser. While these libraries are loaded from CDNs (Content Delivery Networks), the third-party providers cannot access your document content - they only know that someone is using their library code.
No, we do not store your documents on any servers. The entire PDF merging process happens in your browser's memory, and files are never sent to or stored on our servers. Once you close this page or your browser, all document data is automatically cleared from memory.