Adobe has released an optional hotfix for Adobe Acrobat and Reader for Windows and macOS that addresses some important bug fixes.
Release date: February 15, 2021
Vulnerability identifier: None
Platform: Windows and MacOS
Bug Fixes:Viewer
- 4324395: An error comes up on opening PDFs in Reader when trying to open from OneDrive's Personal Vault Folder
Sandbox
- 4324448: Unable to Save PDF file to Citrix ShareFile drive
- 4324392: Unable to save digitally signed PDF to Box drive when "Enable Protected Mode at startup (Preview)" is enabled
Browser
- 4324403: Error "PDF browser plugin is missing, reinstall the application" shown on opening PDF in browser
- 4324403: Hang on connecting to Global Protect tool with error "PDF browser plugin is missing, reinstall the application" shown in background
Printing
- 4324342: "Choose Paper source by PDF page size" checkbox is not working while Protected Mode is enabled
Search
- 4323902: Acrobat is not able to load associated index with a PDF file
Installer
- 4323851: Getting Error 1722 while installing 32-bit Reader or on applying latest Reader patch
Fill & Sign
- 4324424: Reader: Nothing happens on clicking "Save a copy" button after adding a signature through Fill and Sign on a Reader extended document
Editing
- 4324400: Cell content from Excel app is getting copied as image to the Edit app
Release Notes (https://www.adobe.com/devnet-docs/acrobatetk/tools/ReleaseNotesDC/continuous/dccontinuousfeb2021qfe.html#dccontinuousfebtwentytwentyoneqfe)