Hello Citrix Admin,

CPU is always bottle neck for many of the RDS environment and it has been noticed that Adobe reader or DC or Pro are main culprit contender for this. here are well tested config with RDS 2019 environment for Adobe Acrobat reader which saves lots of CPU from adobe process side.

1. Update your application to 2020.013.20064

All HKLM Registry Keys (you can tweak the setting based on version (DC or 11.0 ot 10.0) so dont forget to replace according to your product.

SOFTWARE\Policies\Adobe\Acrobat Reader\DC\FeatureLockDown" name="bEnableContextualTips" type="REG_DWORD" value="00000000"
SOFTWARE\Policies\Adobe\Acrobat Reader\DC\FeatureLockDown" name="bEnableContextualToolbar" type="REG_DWORD" value="00000000"
SOFTWARE\Policies\Adobe\Acrobat Reader\DC\FeatureLockDown" name="bFavoritesFeaturesLockDown" type="REG_DWORD" value="00000000"
SOFTWARE\Policies\Adobe\Acrobat Reader\DC\FeatureLockDown" name="bFindMoreWorkflowsOnline" type="REG_DWORD" value="00000000"
SOFTWARE\Policies\Adobe\Acrobat Reader\DC\FeatureLockDown" name="bOrganizePagesFromThumbnails" type="REG_DWORD" value="00000000"
SOFTWARE\Policies\Adobe\Acrobat Reader\DC\FeatureLockDown" name="bProtectedMode" type="REG_DWORD" value="00000000"
SOFTWARE\Policies\Adobe\Acrobat Reader\DC\FeatureLockDown" name="bPurchaseAcro" type="REG_DWORD" value="00000000"
SOFTWARE\Policies\Adobe\Acrobat Reader\DC\FeatureLockDown" name="bShowEbookMen" type="REG_DWORD" value="00000001"
SOFTWARE\Policies\Adobe\Acrobat Reader\DC\FeatureLockDown" name="bShowRhpToolSearch" type="REG_DWORD" value="00000000"
SOFTWARE\Policies\Adobe\Acrobat Reader\DC\FeatureLockDown" name="bToggleDCAppCenter" type="REG_DWORD" value="00000001"
SOFTWARE\Policies\Adobe\Acrobat Reader\DC\FeatureLockDown" name="bToggleFTE" type="REG_DWORD" value="00000001"
SOFTWARE\Policies\Adobe\Acrobat Reader\DC\FeatureLockDown" name="bUsageMeasurement" type="REG_DWORD" value="00000000"
SOFTWARE\Policies\Adobe\Acrobat Reader\DC\FeatureLockDown\cServices" name="bBoxConnectorEnabled" type="REG_DWORD" value="00000001"
SOFTWARE\Policies\Adobe\Acrobat Reader\DC\FeatureLockDown\cServices" name="bDropboxConnectorEnabled" type="REG_DWORD" value="00000001"
SOFTWARE\Policies\Adobe\Acrobat Reader\DC\FeatureLockDown\cServices" name="bGoogleDriveConnectorEnabled" type="REG_DWORD" value="00000000"
SOFTWARE\Policies\Adobe\Acrobat Reader\DC\FeatureLockDown\cServices" name="bToggleAdobeDocumentServices" type="REG_DWORD" value="00000001"
SOFTWARE\Policies\Adobe\Acrobat Reader\DC\FeatureLockDown\cServices" name="bToggleDocumentCloud" type="REG_DWORD" value="00000001"
SOFTWARE\Policies\Adobe\Acrobat Reader\DC\FeatureLockDown\cServices" name="bToggleWebConnectors" type="REG_DWORD" value="00000001"
SOFTWARE\Policies\Adobe\Acrobat Reader\DC\FeatureLockDown\cServices" name="bUpdater" type="REG_DWORD" value="00000000"
Software\Wow6432Node\Adobe\Acrobat Reader\DC\Installer" name="DisableMaintenance" type="REG_DWORD" value="00000001"
SOFTWARE\WOW6432Node\Policies\Adobe\Acrobat Reader" name="bShowSignMenu" type="REG_DWORD" value="00000000"

HKUser Keys
Software\Adobe\Acrobat Reader\DC\AutoSaveDocs" name="bAutoSaveDocsEnabled" type="REG_DWORD" value="00000000"
Software\Adobe\Acrobat Reader\DC\AVDisplay" name="bUse2DGPUf" type="REG_DWORD" value="00000000"
Software\Adobe\Acrobat Reader\DC\Originals" name="bAntialiasImages" type="REG_DWORD" value="00000000"
Software\Adobe\Acrobat Reader\DC\Originals" name="bAntialiasGraphics" type="REG_DWORD" value="00000000"
Software\Adobe\Acrobat Reader\DC\Originals" name="bAntialiasText" type="REG_DWORD" value="00000000"
Software\Adobe\Acrobat Reader\DC\Originals" name="iAntialiasThreshold" type="REG_DWORD" value="00000000"
Software\Adobe\Acrobat Reader\DC\Originals" name="benableDDR" type="REG_DWORD" value="00000000"

3. Use Citrix WEM Clamping rule for RdrCEF process to 2% so this process does not take much cpu 

Thanks

Certified: CCA-XenApp/XenDesktop/XenServer/CEM/SD-WAN/Sharefile/CCA-VAD-MA/CC-VAD-CC/CC-SP/Citrix Applayering

Google Cloud Architect, MCSE, ITIL, Vmware Certified , AWS Fundamentals. AWS Practitioner

Microsoft certified - Enterprise Cybersecurity Fundamentals & Planning for Security Incident response.

ControlUp Certified, IGEL Professional Certified. 

https://www.linkedin.com/in/amit-gupta-5321a527/