This application can help to merge PDF files in batches, select the folder containing the PDF format, and easily merge all the PDF files in the folder into one new PDF file. Support extracting and previewing PDF text content. Support saving the specified PDF output folder path. Efficient and fast, done offline. Customize the format of the exported PDF name, and the final merged PDF file is stored in the same directory as the source file. You must add more than 2 or more PDF files at a time to merge, please make sure that there are more than 2 or more PDF files in the selected folder. One-time purchase usage, unlimited conversions, and free upgrades. This app supports multiple language usage; After switching languages, you need to restart the app for it to take effect.