I am paying the subscription now to get quality and easy way to make PDF from pictures in my library. It seems like a very complicated and long process!!! I can only select one by one and will take hours to import them as I need to import 150 pictures per PDF and I have1500 pictures to choose from. Every time I need to scroll up all the way to find the next picture. Unbelievably complicated. I took and paid because you are Adobe and it should be the best app on the market. So tedious and not making the most simple tasks. Are people really designing this apps and testing them???. Just need a simple way to make PDF in a short time, not spending a full morning selecting pictures and at the end it says that it does not work!!! Extremely frustrating!!!! Unbelievable
I apologize for the inconvenience caused. To help you in a better way, I would like to have few more details.
First of all may I know which subscription you are using?
If you have Adobe Document Cloud subscription which you are using on your PC/Mac then open Acrobat DC app on the machine.
Go to File > Create > Combine Files into a Single PDF...
From Combine Files window, click on Add Files/Folder option at the top center. Here you can select multiple images from a folder or the complete folder itself.
If in case you have subscribed to PDF Pack service which is an online service for conversion, then go to https://cloud.acrobat.com/convertpdf
Click on 'Select Files to Convert to PDF' button and select the pictures from your computer.
But if you are trying this conversion with Adobe Acrobat mobile app on iOS or Android platform then you can only select one document at a time.
Let me know if this helps.