© 2017 Adobe Systems, Inc. All rights reserved.

Updated Feb 20, 2019.

10.1.0 Planned update, Jun 14, 2011

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, from the enterprise FTP site, and for some languages, from the Reader Download Center.

Available installers

Windows installers
Product Type Installer Size Language
Acrobat Planned update AcrobatUpd1010.msp 111.5 MB All
Reader Full AdbeRdr1010_<lang_ID>.msi 47 MB Language specific
Reader Planned update AdbeRdrUpd1010_MUI.msp 18 MB All (MUI)
Reader Full AdbeRdr1010_mui_Std.zip 150 MB All (MUI)
Macintosh installers
Product Type Installer Size Language
Acrobat Planned update AcrobatUpd1010.dmg 141 MB All
Reader Planned update AdbeRdrUpd1010.dmg 103 MB All
Reader Full installer AdbeRdr1010_<lang_ID>.dmg 70-80 MB Language specific

Security bulletin

Vulnerability fixes include those mentioned in the following:


Updating and patching

Unlike versions prior to 10.0, update and patch installers are now cumulative as follows: Planned updates are always cumulative to the last MSI and out of cycle updates are cumulative to the last planned update.


Only the base release of Acrobat is an MSI and very few Reader updates will ever be an MSI, so in most cases quarterlies will be able to be applied to the base release.


For more details about these and other security features, see the Application Security Guide.

  • General vulnerability mitigation.
  • Reader’s Protected Mode:
  • Support for Citrix and Windows Terminal Services.
  • Support for OLE: opening of PDF embedded in office documents and ability to embed PDF in office documents.
  • iFilter compatibility: iFilter is used for search and indexing on Windows and enables keyword searching in a PDF from a Windows OS-based search. Prior to 10.1, iFilter did not work with Protected Mode enabled for Reader. To use iFilter on XP, the user must install Windows Desktop Search 4 (WDS4) which exists by default on new systems.
  • Support for DirectX 8 was removed. Users who have been using DX8 as the preferred renderer for 3D and multimedia should upgrade their directX plugin to directX 9.
  • Enhanced Security (Refer to the Preference Reference for configuration details):
  • The definition of Win OS trusted sites has been extended to include Local Intranet zones as well as the current Trusted Sites zones. When Automatically trust sites from my Win OS security zones is enabled, both zones are trusted as if they were specified as Privileged Locations and are therefore exempt from Enhanced Security’s restrictions. The customer benefit is that it easily extends trust to numerous servers and subnets in trusted PDF workflows.
  • Privileged Locations: Assigning trust to a folder is automatically recursive and also assigns trust to its subfolders.

Extended browser support

  • IE 9 is fully supported.
  • Viewing PDFs in Firefox 4 on Windows (not Mac)
  • WebCapture with Firefox 4 and IE 9 on Win and Mac

Digital signatures

The following improvements have been added to 10.1:

  • Acrobat/Reader 9.4.5 and Acrobat/Reader 10.1 will accept Identrust certificates with a SHA256 hash. Prior to these releases, certificates with OIDs under the Identrust arc enforced the use of SHA1.
  • The Signature Properties dialog provides a clearer presentation of signing time and validation times:
  • The Date fields on Date/Time and Summary tabs have been renamed to Signing Time. The field values always contains both the date and the signing time from the signer’s computer.
  • The Date/Time and Summary tabs contain more validation time details. In addition to the signing time from the signer’s computer, the validation time also appears in some workflows. For example, when a timestamp is present (including post-signing timestamps), the Date/Time tab displays timestamp details such as if it is embedded, the timestamp authority name, and other information. Some of this additional information also appear in the Certificate Viewer.
  • Prior to 10.1, OCSP responses without nextUpdate were never embedded in a signature. For 10.1 and later, OCSP responses are always embedded irrespective of the presence of nextUpdate; however, whether they are used for signature validation depends on certain conditions. This behavior is designed to support Acrobat’s long term validation feature and allows validating a signature with embedded responses that were valid at signing time. (Refer to Preference Reference.
  • Portfolio signature status indicators: 10.1 implements a portfolio status indicator called a Signature Badge. A signature badge button appears in a signed PDF portfolio window’s taskbar except when the portfolio’s cover sheet is visible. Clicking the button displays the cover sheet and the expands the left-hand signature panel.
  • Improved user experience for silent and automatic updates: On Windows 7, Vista, and Server 2008, 10.1 installs ARMsvc.exe as part of the Updater. The new service enables silent and automatic updates on machines where a user has configured the application for automatic updates. The service eliminates information dialogs prior to updates. In enterprise settings, IT can use DISABLE_ARM_SERVICE_INSTALL=1 to disable the ARM service.

SharePoint integration

Now, like Microsoft Office, Acrobat and Reader X will ask users if they want to check out a PDF when opening that PDF from within Reader/Acrobat from Windows Explorer or from the SharePoint browser interface. The check in/out process has been streamlined and enhanced along with digital signature workflows. For more details, go HERE.

Collaboration Workflows

Additional registry/plist preferences have been created to control the following:

  • bShowConnectDialog (Win) and ShowConnectDialog (Mac): Specifies whether the connect dialog in Shared Reviews appears. The setting maps to a checkbox entry under ‘Shared Review options’ in the ‘Reviewing’ pane in Preferences Dialog. By default, it is shown.
  • bShowWelcomeDialog (Win) and ShowWelcomeDialog (Mac): Specifies whether the welcome dialog in Shared Reviews appears. The setting maps to a checkbox entry under ‘Shared Review options’ in the ‘Reviewing’ pane in Preferences Dialog. By default, it is shown.

Live mail support

Acrobat and Reader both support Live Mail on Windows 7.


A more secure and enhanced Flash player is installed with this release.

Bug fixes

10.1 includes numerous bugs fixes. Some of the major affected areas include:

  • Security: Vulnerability fixes and mitigation additions.
  • 3D rendering/GPU usage: Performance enhancements and better support for features like rotation.
  • AIR integration: Transmission of data to and from a PDF.
  • AutoCAD integration: improvements in text rendering and file conversion.
  • Browser integration: Improved performance, reliability, support for linking across iframes and new windows, and additional browser version support.
  • Dynamic forms/XFA: Numerous fixes which impact performance, file saving, display of tables and controls, and so on.
  • Scripting-JS APIs: Various fixes for inconsistent API behavior across Acrobat/Reader and Windows/Mac.
  • Word to PDF conversion: Fixes for cross references as well as conversion of images and formulas with Office 2007.

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