Easily merge multiple PDF files into one.100% local processing, zero upload, zero risk.
Add PDFs
Drag and drop files here, or click here
You can upload 20 files (each up to 10.0 MB)
How to merge PDF files?
Simply drag and drop or click to upload your PDF files, then drag to adjust the order, and finally click the "Merge PDF" button. The entire process is completed in your browser without uploading to any server.
Supported file formats
Currently, only standard PDF format files are supported. Please ensure that you upload valid PDF files, as corrupted files may not merge properly.
File size limit
Since all processing is done in the browser, it is recommended that a single file does not exceed 50MB, and the total file size does not exceed 200MB to ensure optimal performance.
Adjusting page order
After uploading files, you can adjust the merge order by dragging the file cards. Files will be merged from top to bottom in the order they appear in the list.
Privacy and security
Your files will not be uploaded to any server. All PDF processing is done locally in your browser, ensuring the privacy and security of your files.
Troubleshooting common issues
If the merge fails, please check if the files are corrupted or too large. It is recommended to use a newer version of the browser and ensure there is enough memory space. If you encounter problems, try uploading the files again.