Merge PDF
Combine multiple PDF files into one single document instantly. Your files never leave your browser, ensuring maximum privacy and security.
Select PDF files
or drag and drop them here
Frequently Asked Questions
securityHow secure are my files?
ToolXero uses a unique "Zero-Server" architecture. When you upload a file, it remains in your browser's local memory. The merging happens directly on your device. No data is ever transmitted to our servers.
data_usageIs there a file size limit?
The limit depends entirely on your device's available RAM. Most modern browsers can handle total file sizes up to 2GB for merging without any performance degradation.
historyDo you keep any history?
No history is stored. Once you refresh the page or close the tab, all session data and processed files are permanently cleared from your local environment.
devicesDoes it work on mobile?
Yes, ToolXero is fully responsive. You can merge PDFs on your phone or tablet just as easily as on a desktop — use the up/down arrows on each file to reorder them, since touchscreens don't support drag-and-drop as reliably as a mouse does.