Merge PDFs
Merge multiple PDF files into one document online. Free PDF merger with drag-and-drop reordering. Fast, secure, works in browser. Combine PDFs easily.
About PDF Merger
This tool merges multiple PDF files into a single PDF document. You can upload multiple PDFs, reorder them as needed, and combine them into one file. All processing happens in your browser for complete privacy.
How many PDFs can I merge?
You can merge as many PDF files as your browser can handle. However, for optimal performance, we recommend merging up to 20 PDFs at a time. Each individual PDF must be under 50MB.
Can I change the order of PDFs?
Yes! You can drag and drop the PDF items in the list to rearrange them. The merged PDF will follow the order you set before clicking the Merge button.
What happens to the page numbers?
The merged PDF will contain all pages from all PDFs in the order you specified. Page numbers are sequential across all PDFs.
Are bookmarks and links preserved?
Basic PDF content like text and images are preserved. However, some advanced features like bookmarks, annotations, or form fields may not be fully preserved during the merge.
What is the file size limit?
Each individual PDF file must be under 50MB. The total size of all PDFs combined should be reasonable for browser processing. Very large merged files may take longer to process.
Can I preview the merged PDF?
Yes! After merging, you can preview the final PDF before downloading. You can also use fullscreen mode for better viewing.
Is my data safe?
Absolutely! All PDF merging happens directly in your browser. Your PDF files are never uploaded to any server. Everything stays private on your device.
What if the merge fails?
If merging fails, try with fewer PDFs or smaller files. Make sure all files are valid PDFs. Some corrupted or password-protected PDFs may cause errors.