Once you are at the page, please select "เลือกไฟล์".
After you click "เลือกไฟล์", it will open a new window, In the new window, you have to select the file with the user's address.
Once you press the "Open" command, you can now select all the files that you need. Next is to press "รวมไฟล์ PDF". Wait a few seconds and the page will upload all the files you chose. Make a single file as shown below.
After the file has been merged. You can download the new PDF file immediately.
In case there are any problems or concerns,
Please seek assistance by any means below.
Tel: +66 2-032-9555