ToolAlto Guide
How to Merge PDF Files Online
A simple guide to combining multiple PDF files into one document, with practical tips for ordering pages and checking the final file.
Prepare your PDFs
Put the files you want to combine in an easy-to-check order. Make sure each PDF opens normally before merging.
Upload the files
Open ToolAlto's PDF Merger and select the PDF files you want to combine.
Check the order
The page order matters. Arrange the documents so the final PDF follows the sequence you need.
Merge and review
Create the combined PDF and open it afterward. Quickly check the first, middle, and final pages to make sure everything is present.
Keep a backup
Save the original PDFs until you are satisfied with the merged document.
Try the free ToolAlto PDF Merger
Use the tool directly in your browser for a quick result.
Open PDF Merger →