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Updated Jul 27, 2021.

21.001.20135 Planned update, Feb 09, 2021

This release is a planned update for the products listed in the table below. The latest version is always available through the product’s update mechanism, and for some languages, from the Reader Download Center.

Track details

The Acrobat DC product family introduces two tracks for both Acrobat and Reader which are essentially different products: “Classic” and “Continuous.” Most end users will install the Continuous track provided from the Reader Download Center. Enterprise organizations will user either the Classic or Continuous track. For details and a comparison of the two tracks, see http://www.adobe.com/go/acrobatdctracks.

Available installers

Windows installers
Product Type Installer Size Language Install over...
Acrobat Planned update AcrobatDCUpd2100120135.msp 399.0 MB All DC base
Reader Planned update AcroRdrDCUpd2100120135.msp 247.0 MB All DC base
Reader Planned update AcroRdrDCUpd2100120135_MUI.msp 135.0 MB All DC base MUI
Macintosh installers
Product Type Installer Size Language Install over...
Acrobat Planned update AcrobatDCUpd2100120135.dmg 373.9 MB All DC base
Reader Planned update AcroRdrDCUpd2100120135_MUI.dmg 180.1 MB All DC base

New product features

This release provides various new features for end users described in the New features summary.

Enterprise-Centric features

For these features, refer to the Administration Guide.

Security bulletin

This release provides mitigations for vulnerabilities described in the corresponding security bulletins of Reader and Acrobat.

Bug fixes


  • 4310000: 3D measurement tool is not available on opening a PDF attachment in Reader


  • 4302125: Acrobat freezes when using any external javascript editor on MAC


  • 4311148: Delay in Launch and Zoom operations on opening PDF files with a large number of Annotations


  • 4317953: SetUIPermission is not working for “Email”

Fill and Sign

  • 4312459: ‘Request Signature’ option is grayed out in Fill and Sign app for digitally signed PDFs


  • 4318604: Performance: PDF files taking longer than usual to open via SAP


  • 4313535: Converted Word file from PDF leaves unwanted spaces between letters


  • 4316323: Memory leak on opening AIP protected PDFs in Acrobat in virtual environment


  • 4320621: Form Responses file doesn’t get open in native view


  • 4312000: PDFMaker goes to not responding state in Outlook with VPN enabled


  • 4313333: Time out exceeded during the installation process for windows


  • 4310846: Disable alert to download Flash as part of Flash EOL when opening Portfolios

Known issues

For a list of current issues, see http://helpx.adobe.com/acrobat/kb/known-issues-acrobat-dc-reader.html.

Technical details

Go to the Release Notes Home for information about the following:

  • How to update
  • Update order
  • Definition of release types
  • System requirements
  • Language Support
  • Compatibility
  • Product end-of-life schedule