Hello,
I work with hundreds of PDF's from screenshots or other sources. Anytime I open a PDF to only view it, and then "X" out to close it, I continually get a request to save, Yes or No. I have done nothing to PDF, other then viewing it, at time maybe 10 seconds.

This is unbelievable and takes alot of time and frustration each time I view a PDF to then answer NO, which is not the default selection and requires a "mouse" movement to change the selection to NO.

You have no settings to Ignore this or change this in preferences. I tried turning off JavaScript and it does not work.

System Report Info
Account Detail:
User Rights: Admin
User Account Control: Limited
Process Integrity: Low
Profile Type: None
Acrobat Detail:
Sandboxing: On
Protected View: Off
Captive Reader: No
Multi-Reader on Desktop Support: Off
Available Physical Memory: 4194303 KB
Available Virtual Memory: 3848240 KB
BIOS Version: ALASKA - 1072009
Default Browser:
Default Mail: Microsoft Outlook
mapi32.dll
Version: 1.0.2536.0 (WinBuild.160101.0800)

Display Detail:
Screen Width: 1920
Screen Height: 1200
Number of Monitors: 2
Number of Mouse Buttons: 16
Has Mouse Wheel: Yes
Has Pen Windows: No
Double Byte Character Set: No
Has Input Method Editor: Yes
Inside Screen Reader: No
Graphics Card:
Version: 0.0.0.0
Check: Not Supported
Installed Acrobat: C:\Program Files (x86)\Adobe\Acrobat 11.0\Acrobat\Acrobat.exe
Version: 11.0.23.22
Creation Date: 2017/11/01
Creation Time: 9:27:24 AM
Installed Acrobat: C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe
Version: 20.13.20064.405839
Creation Date: 2020/10/22
Creation Time: 5:42:24 PM
Locale: English (United States)
Monitor:
Name: NVIDIA GeForce GTX 1650
Resolution: 1920 x 1200 x 59
Bits per pixel: 32
OS Manufacturer: Microsoft Corporation
OS Name: Microsoft Windows 10
OS Version: 10.0.19041

Page File Space: 4194303 KB
Processor: AMD64 Family 23 Model 113 Stepping 0 AuthenticAMD ~3793 Mhz
Session Detail:
Boot Type: Normal
Is Shutting Down: No
Network: Available
Inside Citrix: No
Inside VMWare: No
Remote Session: No
Remote Control: No
Using JAWS: No
Using ZoomText: No
Using Windows-Eyes: No
Using NVDA: No
System Name: AVA-558193-1
Temporary Directory: C:\Users\Chris\AppData\Local\Temp\acrord32_sbx\
Time Zone: Eastern Standard Time
Total Physical Memory: 4194303 KB
Total Virtual Memory: 4194176 KB
User Name: Chris
Windows Detail:
Tablet PC: No
Starter Edition: No
Media Center Edition: No
Slow Machine: No
Windows Directory: C:\WINDOWS

Plug-Ins
C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plugins\EScript.api
Version: 20.13.20064.405839
Creation Date: 2020/10/22
Creation Time: 5:42:24 PM
C:\Program Files (x86)\Adobe\Acrobat Reader DC\Reader\plugins\weblink.api
Version: 20.13.20064.405839
Creation Date: 2020/10/22
Creation Time: 5:42:24 PM