How to Use the Merge PDF Tool

Last Updated: October 11, 2025

Navigate to the Nova Tools homepage and locate the "Merge PDF" tool card in the Tools section. Click the card, which displays a plus-circle icon and the description "Combine multiple PDF files into one document," to open the Merge PDF modal.

After clicking the tool card, a modal titled "Free PDF Merger" will appear. This modal contains an upload area where you can select PDF files to merge. You can close the modal by clicking the "×" button in the top-right corner or clicking outside the modal.

Click the "Choose Files" link in the upload area or drag and drop PDF files into it. You can select multiple PDF files at once. The names and sizes of selected files will appear in a list below the upload area. The upload area will highlight, and a message will show the number of files selected (e.g., "Selected: 3 files").

Each selected file is listed with its name, size (e.g., "1.23 MB"), and a remove button (red "×" icon). To remove a file, click the "×" next to it. The list updates automatically, and the selected file count is updated in the upload area.

Once you’ve selected at least one PDF file, click the "Process Files" button. A progress bar will appear, showing the merging progress. The button will be disabled during processing to prevent multiple submissions. If no files are selected, an alert will prompt you to select PDFs.

After processing, the "Process Files" button is replaced by a "Download Result" button with a download icon. Click this button to download the merged PDF file, named "merged_document.pdf". The modal remains open, allowing you to merge more files or close it.