When you are in the organizer, click the magnifying glass to make the preview larger. You can also click the top icon to expand multiple pages.
There is also a slider in the bottom right to resize all previews.
I don't have the maginfying glass.... I have rotate and delete. I posted a screen shot of what I can see...
May be that this is not available in a browser.
You posted to the Adobe Acrobat forum, but your screen shot shows that you are not in Adobe Acrobat. You are in Chrome looking at a PDF that is an attachment to email. PDFs can be created by a number of programs other than Adobe Acrobat.
Please clarify what are you trying to accomplish, and do you have Adobe Acrobat or another PDF viewer installed? If you do, download the PDFs from your email so you have the files on your computer.
I don't quite understand your answer. I have PDF in my computer, I drag them to the area where it says drag and drop or select a file. I do that, and I get another screen that has all my pages. As my example shows. I just edited my orginal post to show another screen shot. I use two screens. One has a pdf open, and the other shows my Adobe organize page open. Maybe I am doing this all wrong...but it gives me option to select file.
You are using Acrobat Reader, not Adobe Acrobat.
I see Adobe Acrobat Reader DC (free):
and a message that you can upgrade:
It looks like you have purchased PDF Pack for use with the free Adobe Reader? It doesn't have all the same features as Adobe Acrobat.
If so, I just checked the plans and I'm seeing a $5 per month higher fee for the full version of Acrobat Pro (annual plan) over PDF Pack. If the feature is worth it to you, you might want to change plans. You can also get a free 7-day trial (make sure to cancel.)