Acrobat Reader

My endpoint security scanner is alerting on a high-severity heap use-after-free vulnerability, CVE-2026-45447, stemming from the embedded OpenSSL cryptographic library (PKCS7_verify() function) inside Adobe Acrobat. Our endpoint currently has Adobe Acrobat Reader Continuous Release (Version 2026.001.21691, 64-bit) installed. According to Adobe Security Bulletin APSB26-63, this update timeline addresses critical flaws, but we require verification on whether this build completely resolves the specific OpenSSL flaw, or if an additional out-of-band update is required. Please provide the exact target patch version alongside any command-line parameters needed to safely push the update across our environment.

Whilel I am able to download the free Adobe Acrobat Reader, it will not install on my computer. Need a fix for this.

I have tried several times now to install an update to Acrobat (64-bit) on my Microsoft Surface Pro.  The update keeps failing with the following error" error 1402.could not open key: hkey_local_machine32\software\microsoft\internet explorer\main\featurecontrol\feature_browser_emulation This is odd for a couple of reasons:1) Internet Explorer is no longer installed on the tablet.2) When I look in REGEDIT, there is a "hkey_local_machine", but not "hkey_local_machine32".

Problem Description: I'm in "Single Page View," have "Enable Scrolling" unchecked in the View menu, but scrolling with the mousepad still jumps to the next page, unlike keyboard navigation. Steps to Reproduce:Open any PDF.Go to View > Page Display > Single Page View.Go to View > Page Display and ensure Enable Scrolling is UNCHECKED.Attempt to scroll down with the mousepad.Observe that it scrolls to the next page instead of remaining on the current page.Adobe Acrobat Version: Adobe Acrobat Reader DC | Continuous release | Version 2025.001.20467 | 64-bit.Also the "Use mouse wheel to scroll: Single page at a time" preference is no longer present in Edit > Preferences > Page Display in this version. 

OnBase version 24.1.11 uses Adobe Acrobat Reader to display PDF documents. We noticed older PDF versions displayed in OnBase zooms to 170% and staff has to zoom out every time. We’ve tried changing the scaling option under General in adobe acrobat reader and setting the zoom option to fit to page or 100% under the Page Display but it doesn’t seem to work for these older PDF documents in OnBase. Is there any other way to default 100% or fit to page for all PDF documents in OnBase.

I have a few users experiencing issues with acrobat and pro. Where if I have a pdf open that is saved to the c drive. I then attempt to open a pdf from outlook it does not open a second tab with that pdf nor does it open a window with that pdf. The only thing I can see is when I have task manager open there is a instance of acrobat opening in the background processes, but no window gets created for me to see. The strange part is if I have acrobat closed then open a pdf from outlook first. I can then open any number of pdf correctly from any drive or from outlook. It only happens when the user opens a pdf from their c drive first. This issue has persisted through reinstalls of acrobat on multiple different devices. Let me know if I can provide any more information about this issue. The devices are all win 11 most recent updates installed. Most recent version of acrobat/ pro depending on the user. This is also happening on my work device although Idon't use acrobat that much 

Adobe Acrobat Reader – Bug ReportSubject: Access Denied when opening PDF files directly from Google Drive for DesktopEnvironment* Application: Adobe Acrobat Reader (latest version)* Operating System: Windows 11* Storage: Google Drive for Desktop* Google Drive Mode: Streaming (files marked as Available Offline)* Antivirus: Kaspersky Endpoint Security Cloud* Adobe: Updated to the latest available version⸻Problem DescriptionAdobe Acrobat Reader is unable to open some PDF files stored in Google Drive for Desktop.The following error is displayed:“There was an error opening this document. Access denied.”In some attempts Acrobat also displays:“The file path is too long. Specify a shorter file name or save to a location with a shorter path.”⸻Steps to Reproduce1. Install Google Drive for Desktop.2. Configure Google Drive in Streaming Mode.3. Mark the folder as Available Offline.4. Open a PDF stored inside Google Drive using Adobe Acrobat Reader.⸻Expected ResultThe PDF should open normally.⸻Actu

This "Ask AI Assistant" box has started popping up at the bottom of the window when viewing a PDF. It has an option to "hide for this session" but how do I turn off permanently? It's just another annoying dialog box filling up my viewing screen

l'appli se bloque avec un écran noir après quelques secondes d'utilisation. Redémarrage, réinstallation, .. rien ne fonctionne. Une solution ?

When opening some PDF files stored on Onedrive, Adobe Reader (latest version) switches to the Print dialog. The PDF is not opened. If I print and save a new PDF at that point, the new PDF opens. How can this be fixed? 

 Is there any registry key to enable the radio box use system setting by default?

Hello.Today i  notice  that when  open a pdf  in chrome dekstop  and  after that  downloading,automatically open  to  my C  drive  with  acrobat reader

Depuis deux jours il m’est impossible d’accéder à mes documents dans Acrobat Reader car impossible de me reconnecter (j’ai une bonne connexion et mes identifiants sont les bons). L’application et la version en ligne me disent toutes deux qu’un problème est survenu et de réessayer plus tard. Même message d’erreur sur tous mes appareils (ordinateur fixe, ordinateur portable et même téléphone portable). Cela fait deux jours et je suis bloquée. Une idée ? 

When Acrobat Pro opens, within 10 seconds a darkened background and a blank gray modal dialog/overlay appears in the center of the screen. The dialog contains no text, buttons, loading icon, or close option, and it blocks all interaction with the application. I can still see the Acrobat interface dimmed behind it.The only way to close Acrobat is through Task Manager. Restarting the computer, uninstalling and reinstalling Acrobat, and trying common keyboard shortcuts such as Esc, Alt+F4, Enter, and Alt+Space have not resolved the issue. The problem appears shortly after opening a PDF, or even just opening Acrobat without opening a specific PDF.I have attempted the solution offered here without success: https://community.adobe.com/questions-12/acrobat-white-box-after-install-1505692System: Windows 11. Acrobat Pro installed through Adobe Creative Cloud. Latest updates across the board.

Confirmed on macOS 14.3.1 and macOS 14.5. Previously, Acrobat Pro (paid) and Acrobat Reader (free) could both be downloaded, installed and run separately. Now, the Adobe Reader installer installs the app 'Adobe Acrobat', but when you open it, it has some branding for Reader. It's quite confusing. To confirm, I download the app from https://get.adobe.com/uk/reader/ and run the installer multiple times, which completes without any errors but still produces the same result: in the Applications folder, it installs 'Adobe Acrobat' (not Reader) - see screenshot. I've tried the Acrocleaner tool (https://www.adobe.com/devnet-docs/acrobatetk/tools/Labs/AcroCleanerMac.dmg) - after running the downloaded file and completing the cleanup, I cleared my bin and restarted the machine, then tried to reinstall Acrobat Reader from a fresh download, but still had the same result. Adobe support confirm this is the first case received and there is no system

Hello everyone,I am looking for the incremental patch AcrobatDCUpd1901220034_incr.msp, which corresponds to version 19.012.20034 (Planned update, May 14, 2019) for Adobe Acrobat Pro DC 2019 (Continuous Track).I recently had to format my PC and I reinstalled all updates sequentially. I already have the subsequent patches (from 19.012.20035 up to 19.021.20061), but I am missing this specific one (19.012.20034). Without it, the installer does not allow me to apply the following updates.I have tried downloading it from the official Adobe paths, such as:https://ardownload.adobe.com/pub/adobe/acrobat/win/AcrobatDC/1901220034/but directory listing is disabled, and the public FTP no longer allows anonymous browsing.Does anyone have a copy of this file or know of a reliable repository/mirror where I can download it?If anyone has it stored in their local update cache folder, I would really appreciate a copy.I would greatly appreciate any clues or help.

On our session host servers, Adobe Acrobat Reader (free version) auto updated to 2026.001.21367.  Several users are now being prompted to log into Adobe.  If they cancel, the program closes.  Users should not need credentials to use a free program.  I’ve had to change their default reader to be Edge just so they can continue to work.I’ve tried the following:!--startfragment>Disabled new acrobat To fix Adobe Reader freezing, immediately try disabling Protected Mode in Edit > Preferences > Security (Enhanced) and unchecking "Enable Protected Mode at startup". Edit > Preferences > General 'Messages from/to Adobe' uncheck 'Show me messages when launch Adobe Acrobat' This is a common fix, but ‘Sync preferences’ is no longer an option in this latest version.Edit > Preferences Select Adobe Online Services in the categories list.Uncheck the option Sync preferences across devices and document services. I can’t imagine uninstalling/reinstalling will fix it, since it’s the lates

Combine files feature gives a message that a flash player is needed. I have installed the updates. Then when I click on the flash player it sends me to the adobe site where I definitely don’t know where to go. 

Hello.Today i notice  that  a  specific  pdf  that i had  downloade  one  week ago  ,today  didn’t  open with  reader!!!!.Open  corretcly  in  chrome  or  with soda pdf  but  not  with  adobe  reader.I  do not knwo what happens 

  reviving this thread because I want smooth zooming with my touchpad. I have the smooth zooming enabled however that only gives smooth zooming if I toggle the zoom with my mouse pointer. I want it to zoom smoothly when I use the scroll on my touchpad. 

Hello, I have adobe X pro licence.I need to remove it from my old PC and put it on my new PC.Unffortunatlly i dont see anywere deactivate option taht is suggested and all articles are old articles.what can i do regarding this?Can I transfer it somehow from old to new PC.

Please remove Convert to PDF in context menu.

I have installed adobe acrobat reader 26.001.21662, and open a e-book which contains chinese character at the menu section (on the right hand side), the Chinese character becomes box and cannot be shown. How could I do to resolve the problem ??  

I keep getting error 1635, I have tried to uninstall the program via control panel and it won’t allow me. I have tried to uninstall from adobe creative cloud, but it also does not work it loads 1% then stops. I can open adobe acrobat, but cannot save or make changes. It opens a blank dialog box and does nothing. Neither of the two options worked I just get the error “This patch package could not be opened. Verify that the patch package exists and that you can access it, or contact the application vender to verify that this is a valid Windows Installer patch package.”