Drop your files here or click to browse
Add as many files as you need
Files are read locally — never uploaded
Add files to enable processing.
This tool runs entirely in your browser. Your file is read into this tab, processed on your device, and never uploaded to PDFDig or any third party. Closing the tab clears it from memory.
Frequently asked
Is there a limit to how many PDFs I can merge?+
There's no hard server limit because the work happens in your browser. Very large batches are bounded only by your device's available memory.
Are my files uploaded to merge them?+
No. PDFDig reads the files locally with PDF-lib and writes the combined file back to your device. No upload occurs.