Hi, do you mean, you have 18 K URLs, each URL is a PDF file, then I just need go through these URLs and download these PDF files?
If yes, I can do it, I can write C# program to do this.
18000 files, the final zip file size will be large, you know this, right? So I will send the files to you in batch, maybe 1000 per file, so in total 18 files. I will share these files on onedrive, then you download, then I delete the files.
This should be a task could be done in less than 3 days.
Select me, let's start immediately!