2732 results found

1. Permit me to configure a background color for searched-for-and-found text

   In some documents, there is by coincidence background colors that are very close to the color that Acrobat uses to enhance the visibility of searched-for text.

   In Acrobat preferences there is no way of changing this background color. For me, searched-for-and-found would be shaded a bright yellow. The default value is nice on a white background, but no use on documents that happen to have a similar (slate blue) color background.

   3 votes

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2. FIX Unable to print mixed letter and legal size using a Mac

   This appears to be an ongoing issue for the past several years and I am still experiencing what so many others have found. There is a problem printing a LARGE (100+) PDF with mixed legal and letter sized pages using Adobe Reader on a Mac with a Brother laser printer.

   I think that Adobe support has not been able to recreate the issue because their test file has only two pages. If they create a 100+ page test file with mixed letter and legal and they should be able to replicate the issue.

   Here is what I have:

   I have a MacBook Pro (15-inch, 2016) running Catalina, Brother HL-L6200DWT printer and using Adobe Acrobat Reader DC 2020.009.20063. I have all of the settings set correctly per the Adobe: https://helpx.adobe.com/acrobat/kb/print-mixed-page-sizes-acrobat.html
   I contacted Brother support as well and followed the details found at : https://help.brother-usa.com/app/answers/detail/a_id/102267
   This included downloading and using the latest drivers from Brother. As instructed I tried both their CUPS driver and the BR-Script driver.
   I have printed using both a direct USB cable and over WiFi.

   When I print a large (100+) PDF file with mixed legal and letter it initially works for the first 10 or 20 pages but eventually the pages get cut off with legal pages being printed half way down the page and/or cut off. It is as though the data being sent to the printer eventually becomes "corrupted" so that it is unable to print correctly.

   Brother support provided a workaround that does work: Rotate the view of all of the pages by 180°, so it looks upside down on the screen.
   Then print the document as usual, and all the pages should print completely.

   Attached is a test.pdf file of multiple mixed size pages that I used to replicate the issue.
   Also attached is a result.pdf which is a scanned result from the printing showing the issue with pages being cut-off / misprinted. Note that the A4 pages are scanned as legal size, but you can still size how they actually printed on the actual paper.

   This appears to be an ongoing issue for the past several years and I am still experiencing what so many others have found. There is a problem printing a LARGE (100+) PDF with mixed legal and letter sized pages using Adobe Reader on a Mac with a Brother laser printer.

   I think that Adobe support has not been able to recreate the issue because their test file has only two pages. If they create a 100+ page test file with mixed letter and legal and they should be able to replicate the issue.

   Here is what I have:

   I have… more

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   3 votes

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3. Issue with PDF and Adobe Reader

   When cancelling the print preview section, Adobe Reader crashes. I have the latest version of Adobe Acrobat Reader DC, 2020.012.20041.

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4. Allow for selective sync on libraries

   The request is to allow for selective sync on libraries because the creative cloud is taking up too much space and storage on my computer and a lot of my libraries do not need direct access at this time.

   3 votes

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5. Prevent home page from displaying after closing PDF document

   The subject line says it all. Just another thing to close. Not the end of the world. Just an ongoing annoyance. Thanks.

   3 votes

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6. Voice search on Adobe Acrobat Reader

   I am raising a request for voice search feature to be added to Adobe Acrobat Reader.

   Hope this will be available soon.

   3 votes

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7. My Android Reader can invert the display (white text on dark BG). Can the Desktop app do the same, easy on the eyes?

   In mobile Reader App, I can change the display to Night Mode (inverted color, white text on dark BG). Can I do the same in desktop Acrobat DC?
   Please make it so.

   3 votes

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8. Enable access to files in long folder paths (longer than 255 characters)

   AR is unable to open files where the file and folder path exceeds 255 characters. To accommodate this we have had to replace it with a competitor's software.

   3 votes

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9. yellow Highlight text not working.

   yellow Highlight text not working in pdf.

   3 votes

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10. We need a translator inside, if i am reading a document in another language, i would like to translate the word just with clicking in

    We need a translator inside, if i am reading a document in another language, i would like to translate the word just with clicking in

    3 votes

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11. Make Acrobat Reader to reopen all documents previously opened before

    Because I have to work many times on a multitude of opened pdf files that I need to keep open for days in a row, I think a feature to restore previous session of opened documents (just like Firefox or Google Chrome) would be really helpful!

    3 votes

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    Need Info  ·  AdminAyush Jain (Lead Software Engineer, Adobe) responded

    Hi,

    Thanks for reaching out to us for you conerns.

    We already have it implemented in Reader.
    Do “File” → “Reopen PDFs from last session.” And that should restore all the pdfs that were present in you last session at the time of Quiting the application.

    Hope this helps.

    Thanks
    Ayush Jain

12. please add a feature to more quickly change the color of highlights and underlines

    Please add a feature to more quickly change the color of highlights and underlines.

    3 votes

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13. Acrobat for Linux Debian

    Make download available for Debian/Ubuntu/Mint users, which is growing.

    3 votes

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14. disable share pop up

    Disable the share pop-up or add ability to set default share option, e.g. direct to attach to e-mail.

    3 votes

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15. Stop seizing control of default apps on my computer.

    I have a legal copy of Acrobat Pro X (Creative Suite) that I love (I use it over Creative Cloud supplied by my employer). PROBLEM: I cannot have Reader DC (needed for shared forms sent to me occasionally) installed at the same time as it always acts as default app even though the Windows 10 default app still lists Acrobat Pro. This is as infuriating as when Edge automatically changes this every time there is a Windows update. I already own Finereader 15 that does everything Acrobat does and more and does not require a monthly subscription. You lost a customer when you made your business model change, but stop trying to control my computer.

    I have a legal copy of Acrobat Pro X (Creative Suite) that I love (I use it over Creative Cloud supplied by my employer). PROBLEM: I cannot have Reader DC (needed for shared forms sent to me occasionally) installed at the same time as it always acts as default app even though the Windows 10 default app still lists Acrobat Pro. This is as infuriating as when Edge automatically changes this every time there is a Windows update. I already own Finereader 15 that does everything Acrobat does and more and does not require a monthly subscription. You lost a… more

    3 votes

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16. Linux support via wine

    I like all adobe products but I don't like the fact that to use them I should use Windows or Mac. I understand supporting Linux is a huge work but for something as small as acrobat reader it is possible with little effort.

    It is possible to install acrobat reader on Linux via wine. I suggest packaging acrobat reader with wine and distributing it to Linux.

    3 votes

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17. The font changes automatically by filling in the forms and using Polish diacritics

    Reporting a new bug:

    Steps to reproduce the issue:

    -> Open the document / form
    -> Use the "Fill & Sign" tool
    -> Enter any text using Polish diacritics, e.g. Ą, ą, Ć, ć, Ś, ś, Ż, ż, Ź, ź etc.

    Environment:

    -> OS: Windows 10 Pro 1909 (18363.719)
    -> Adobe Acrobar Reader DC Version: Polish (20.006.20034)

    Expected result:

    -> Forms should have a continuous homogeneous formatting. Unfortunately, even different fonts appear in one and the same field. Surprisingly, this problem does not concern German diacritics.

    Observed result:

    -> When filling out the forms, we should ensure that the text is properly formatted. Unfortunately, when using Polish diacritics, the font changes automatically and there is no possibility to maintain the formatting continuity. This makes the document look unprofessional.

    Reporting a new bug:

    Steps to reproduce the issue:

    -> Open the document / form
    -> Use the "Fill & Sign" tool
    -> Enter any text using Polish diacritics, e.g. Ą, ą, Ć, ć, Ś, ś, Ż, ż, Ź, ź etc.

    Environment:

    -> OS: Windows 10 Pro 1909 (18363.719)
    -> Adobe Acrobar Reader DC Version: Polish (20.006.20034)

    Expected result:

    -> Forms should have a continuous homogeneous formatting. Unfortunately, even different fonts appear in one and the same field. Surprisingly, this problem does not concern German diacritics.

    Observed result:

    -> When filling out the forms, we should ensure that the text… more

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    3 votes

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18. Read Out Loud Function - highlight words or phrases as it is reading

    The Read Out Loud function really needs to be updated so that it works better for individuals with reading difficulties, such as dyslexia. If they want this aspect of adobe to work well and actually benefit many of those who need it, it should highlight words and phrases as it is reading so that is easier to follow when reading, and know where in the text the reader is.

    This will make the product a lot more accessible to people with dyslexia, dyspraxia or the likes.

    3 votes

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19. Document Property / Title is filled with spaces then the PCL job name property is set with this wrong value.

    Acrobat allows the Document Properties → Title field to be filled with empty spaces. This causes the job name passed to the driver to be incorrect: the job name consists only of whitespace, which is not a valid value.

    Could this property forbid such values?

    Please check the attached picture.

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    2 votes

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20. Bug Report: Acrobat Reader installer disables inheritance and overwrites ACL on .pdf\PersistentHandler, removing required Windows capability

    Bug Report: Acrobat Reader installer disables inheritance and overwrites ACL on .pdf\PersistentHandler, removing required Windows capability SID → Windows 11 PDF full-text indexing breaks
    Product / Component

    Adobe Acrobat Reader (latest version as of Jan 2026)
    Installer / Update / Repair actions affecting Windows Search integration and registry ACLs

    OS / Environment

    Windows 11 Pro (x64)

    Windows Search indexing enabled and functioning correctly for other formats (e.g., .docx)

    PDFs are text/OCR-enabled (text can be selected and copied)

    Issue is reproducible on system A; system B (Windows 11, no prior Adobe install) indexes the same PDFs correctly

    Summary

    Installing (or repairing/updating) Adobe Acrobat Reader on Windows 11 Pro breaks Windows Explorer / Windows Search full-text indexing of PDF contents.

    The failure is caused not only by registry value mappings, but by Acrobat modifying registry key permissions (security descriptor):

    Acrobat disables permission inheritance on:

    HKLM\SOFTWARE\Classes.pdf\PersistentHandler

    Acrobat overwrites the ACL (DACL) to include only classic principals like:

    SYSTEM, Administrators, Everyone

    This process removes Windows default capability SID ACEs (notably a capability SID in the form S-1-15-3-…)

    Windows Search’s SearchFilterHost.exe runs with that capability SID in its token (verified in Process Explorer as Group with flag “Capability”).

    Once that SID is no longer granted ReadKey on the PersistentHandler registry key, SearchFilterHost.exe receives ACCESS DENIED and the PDF IFilter chain cannot be resolved/loaded.

    Result: PDFs appear in the index (metadata indexed), but System.Search.Contents remains empty, and Explorer cannot find text inside PDFs.

    Re-enabling inheritance (or restoring default ACL) immediately restores PDF full-text indexing.

    Impact / Severity

    High. Acrobat Reader installation can silently disable OS functionality:

    Explorer / Start Menu search cannot find PDF content

    Windows Search indexes PDF metadata only, not contents

    Users may incorrectly assume PDF content indexing is broken or unreliable in Windows 11

    Affects enterprise setups and forensic/search workflows heavily

    Expected Behavior

    After installing Acrobat Reader:

    Windows Search / Explorer should continue to index PDF contents using the Windows built-in PDF filter (Windows.Data.Pdf.dll) or a compatible handler chain.

    Acrobat should not modify registry key ACLs in a way that removes Windows-required capability SIDs.

    PDF full-text search should continue working the same way as before installation.

    Actual Behavior

    After Acrobat Reader installation:

    PDF contents are no longer searchable (while .docx continues working)

    In the Windows Search index:

    PDF file entries exist

    System.Search.Contents is empty (no extracted text)

    Process Monitor shows registry access failures:

    SearchFilterHost.exe → RegOpenKey / RegQueryValue on .pdf\PersistentHandler results in ACCESS DENIED

    Windows.Data.Pdf.dll is not loaded during PDF indexing attempts until permissions are fixed

    Reproduction Steps (100% reproducible)
    Baseline (works)

    Ensure Windows Search is enabled, and the folder containing PDFs is indexed.

    Confirm that a given PDF has selectable/copyable text (OCR or embedded).

    Confirm PDF full-text search works:

    Explorer search finds terms inside PDF content

    In Windows Search index, System.Search.Contents contains extracted text (or at least non-empty)

    Confirm handler chain is present:

    HKCR.pdf\PersistentHandler default value is {1AA9BF05-9A97-48C1-BA28-D9DCE795E93C}

    HKLM\SOFTWARE\Classes\CLSID{1AA9BF05-…}\PersistentAddinsRegistered{89BCB740-6119-101A-BCB7-00DD010655AF} points to:
    {6C337B26-3E38-4F98-813B-FBA18BAB64F5}

    {6C337B26-…}\InprocServer32 points to %SystemRoot%\System32\Windows.Data.Pdf.dll

    Trigger (break indexing)

    Install Adobe Acrobat Reader (latest version).

    After install, check registry ACL of:

    HKLM\SOFTWARE\Classes.pdf\PersistentHandler

    Observe:

    Inheritance disabled

    DACL replaced/flattened with entries like:

    SYSTEM

    Administrators

    Everyone

    Missing capability SID entries (notably S-1-15-3-1024-… capability SID)

    Observe failure

    Copy a PDF into an indexed folder (or modify a PDF to trigger indexing).

    Confirm:

    Indexing occurs for metadata (System.ItemPathDisplay present in index)

    But System.Search.Contents empty

    Explorer cannot find content terms in the PDF

    Evidence / Diagnostics
    1) Registry key ACL change causes failure

    User experiment:

    When permissions on .pdf\PersistentHandler are set to inherit from parent .pdf, PDF content indexing works.

    When inheritance is disabled and the capability SID ACE is removed, PDF indexing fails.

    Adding back the capability SID (explicit allow ReadKey) or re-enabling inheritance restores indexing.

    Minimal permission requirements observed:

    SYSTEM + capability SID (S-1-15-3-…) required

    Removing Users/Admins/CreatorOwner does not break indexing

    Removing SYSTEM or the capability SID breaks indexing

    2) Process token includes the capability SID (confirmed)

    Using Process Explorer:

    SearchFilterHost.exe → Properties → Security → Groups

    The capability SID appears in Groups with Flag = “Capability”.

    This demonstrates that Windows Search components rely on capability SIDs in access checks.

    3) ProcMon shows access denied

    In Process Monitor during PDF indexing attempt after Acrobat installation:

    SearchFilterHost.exe

    Registry open/query on .pdf\PersistentHandler yields ACCESS DENIED

    Stack shows impersonation-related frames (e.g., kernel path mentions dereferencing impersonation token)

    After fixing ACL inheritance, access succeeds and:

    Windows.Data.Pdf.dll becomes visible/loaded in the indexing chain

    PDF full-text indexing works again

    4) Why SYSTEM alone is insufficient

    Even when DACL includes SYSTEM FullControl, access can still fail due to Windows token restrictions / capability gating:

    Access may require both:

    standard SID authorization AND

    capability / restricted SID set authorization

    This matches observed behavior: SYSTEM alone does not restore indexing if capability SID ACE is missing.

    Root Cause

    The Acrobat Reader installer (or update/repair routine):

    modifies security descriptors (ACLs) of the registry key HKLM\SOFTWARE\Classes.pdf\PersistentHandler

    disables inheritance

    rewrites DACL to contain only classic principals (SYSTEM/Admin/Everyone)

    thereby removing default Windows capability SIDs such as S-1-15-3-1024-…

    Windows Search indexing host (SearchFilterHost.exe) includes that SID with flag “Capability” and requires ReadKey

    result: SearchFilterHost cannot read PersistentHandler → cannot resolve filter chain → cannot extract contents

    This is a permissions regression introduced by Acrobat install behavior.

    Workaround / Fix
    Immediate workaround (manual)

    Restore default Windows ACL by re-enabling inheritance:

    regedit

    Navigate to: HKLM\SOFTWARE\Classes.pdf\PersistentHandler

    Permissions → Advanced

    Enable inheritance

    Apply

    PDF full-text indexing resumes immediately after next indexing cycle.

    Alternative workaround

    If inheritance must remain disabled:

    Add explicit allow ReadKey ACE for:

    Capability SID: S-1-15-3-1024-1065365936-1281604716-3511738428-1654721687-432734479-3232135806-4053264122-3456934681

    Ensure SYSTEM also retains ReadKey

    Recommendation to Adobe Engineering

    Do not modify security descriptors for .pdf\PersistentHandler unless absolutely necessary.

    If ACL changes must be made:

    preserve inherited ACEs (do not disable inheritance)

    do not remove “unknown” SIDs (capability SIDs)

    If Acrobat registers its own handler chain, it should do so by updating values, not rewriting registry permissions.

    Add a regression test:

    install Acrobat on clean Windows 11

    ensure PDF System.Search.Contents extraction still works under Windows Search

    verify capability SIDs remain present in ACLs

    Additional Notes

    On a second Windows 11 system (no prior Adobe install), PDF full-text indexing works correctly with the same PDF files.

    The issue is independent of PDF content (OCR/text selection works; document is new and created from Word).

    Microsoft documentation indicates capability SIDs are legitimate and commonly used; they should not be removed from ACLs.

    Bug Report: Acrobat Reader installer disables inheritance and overwrites ACL on .pdf\PersistentHandler, removing required Windows capability SID → Windows 11 PDF full-text indexing breaks
    Product / Component

    Adobe Acrobat Reader (latest version as of Jan 2026)
    Installer / Update / Repair actions affecting Windows Search integration and registry ACLs

    OS / Environment

    Windows 11 Pro (x64)

    Windows Search indexing enabled and functioning correctly for other formats (e.g., .docx)

    PDFs are text/OCR-enabled (text can be selected and copied)

    Issue is reproducible on system A; system B (Windows 11, no prior Adobe install) indexes the same PDFs correctly

    Summary

    Installing (or repairing/updating)… more

    2 votes

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