OCR: "No languages installed"

[na_at]

hello everybody

my OCR Tool does not work anymore, as it say no languages installed, even though they are installed. It used to work great, but it just stopped working, as i noticed the "OK" Button being greyed out:

image(1).png

I can't open the drop down, as it is empty. But apparently the necessary languages are installed:

image(2).png

I looked at the other threads, but I am not super versed on the technical side, so I could not try all the offered suggestions.

I also downloaded the language pack Europe West here: https://www.pdf-xchange.com/pdf-xchange-ocr

and it changed nothing.

Thank so much for the help.

-nagua

[Stefan - PDF-XChange]

Hello na_at,

Welcome to our forums!
Can you please check under Help -> About for the version of our Editor currently installed on your end?
We had some such reports with some older builds so I suspect you might be using one of the affected ones.

If you can - please download and install the current latest version from our website:
https://www.pdf-xchange.com/product/downloads
And all should be well!

Kind regards,
Stefan

[na_at]

it worked!

Thank you so much

Have a nice day!

[Stefan - PDF-XChange]

[sunshineweb]

I am on 9.5.368 and I cant't update. other pcs with that ocr work fine.
i tried to uninstall every setting (with revo) but every setting is preset at new installation.

Has anyone ideas what are my options?

[sunshineweb]

I uninstalled the programm
then deleted in both the folder "Tracker Software" in
C:\Users\...my path ...\AppData\Roaming
and C:\Program Files

reinstalling, the software still knows my product key. and my settings. (but forgot at least my recently used files)

here it is described with solution:
viewtopic.php?p=185415&hilit=language+ocr#p185415

[Stefan - PDF-XChange]

Hello sunshineweb,

Thanks for sharing the link to the other topic. Indeed the solution proposed there is the one we can offer in these scenarios where an older version of our software is used on the latest Win 11.

Kind regards,
Stefan

[sunshineweb]

with an update I think the language broke again - I had to uninstall and reinstall pdfpro (just an update of the language pack didnt help). well, it works now.

maybe this was caused by an not correct installed language (German, old spelling)

on the other laptop it worked seemless.

[Stefan - PDF-XChange]

Hello sunshineweb,

If you are updating to the current latest version - it should not have the issue with the missing languages. If reinstalling some older builds - I can not really comment on why it behaved the way it did, but glad that at the end you now seem to have it working as needed on all your machines!

Kind regards,
Stefan

[sunshineweb]

I updated from the previous version to this one, and after that, OCR started failing again on one PC with an error message.
Also, the German language pack seemed outdated — it could be updated easily, but this didn’t fix the issue. The error persisted.

To solve it, I had to uninstall PDF-XChange and reinstall it. After that, OCR worked again (in both PDF Editor and Tools).

Please check if updates can potentially break OCR functionality.

[Daniel - PDF-XChange]

Hello, sunshineweb

We are investigating it, but so far everything points to the issue being external errors, most commonly items like permissions issues, or third party apps having a handle on the folder (when they really shouldn't) preventing proper removal and re-creation of folders and their permissions, etc. While some of the possible causes are errors that could come about during the installation process, not all of them are, and in many cases, we see users report this happens a few days after installing, without any warning or explanation. The best theory I have is that security software might eb involved, perhaps there is some unique interaction with opening the OCR during a background scan or some such that leads to this, but in the end, no errors appear, so that is still speculation.

Sadly, it is not a consistent enough issue to reproduce readily, and testing on our end has been fruitless. For now, if you do encounter it again, a quick reinstall should resolve the issue, but with a lack of anything indicating the root cause in the logs we have seen, I cannot be sure that it is possible to prevent this from our end.

Kind regards,

[Rfritz]

Hi,

Is there any new information about this issue?
I'm having the same problem. I updated from 10.x to the latest 11 version—and OCR is grayed out.

Best regards
RFritz

Update - Solved:
In our environment with SentinelOne, we had to set up an exception for “C:\Program Files\PDF-XChange\PDF Editor\PXCEditor.exe”

[Sean - PDF-XChange]

[Silverbergh]

I solved the problem simply by copying the folder "C:\Program Files\Common Files\Tracker Software\Common\ABBYY" and all of its contents to the main program folder (in my case "D:\Programme\Tracker Software\PDF Editor").

[Dimitar - PDF-XChange]

Thanks for your input.

[MatthiasHecht]

Same problem here with PDF-XChange Editor Plus Version 10.6.0.396 (Enhanced OCR) and 11.0.1 (Enhanced OCR):

Czech, English, Finnish, French, German and Spanish are installed but i cannot select one of these languages for the OCR function.

> Uninstalling and reinstalling of 11.0.1 does not help.
> Copy of the ABBYY folder does not help (copy from "C:\Program Files\Common Files\PDF-XChange\ABBYY" to "C:\Program Files\PDF-XChange\PDF Editor\ABBYY").

We used OCR without problems till ... I´m not sure, maybe weeks.

Please check this problem. We need the OCR function

Thanks
Matthias

P.S.:
> Screenshot added.

Screenshot 2026-08-17 153632.png

> I tried on 1x PC with 11.0.1 and 2x PC with 10.6 in our network.
> I tried your "disable_sh.reg", but on my PC there is no "PDFX.ProcessPool.Worker.x64.exe" unter [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\].

Regedit.png

> We also use SentinelOne, but under "Quarantine" are no files from PDF-XChange and no files earlyer than 07.2025.

[Daniel - PDF-XChange]

Hello, MatthiasHecht

the SentinelOne issues do not result in any false positives, or quarantined items, the issue is purely that their software refuses to release its "handle" on the files when we need them and it should reasonably be done with them.

For the moment, We have an experimental workaround for the OCR/Sentinel related issues in V11 specifically. (So far this has seen resounding success - and will be implemented in the next release.

In v11, the path has changed and the affected files are located here - if you do not want to try the workaround - you can simply whitelist this item:
C:\Program Files\PDF-XChange\PDF Editor\PXC.ProcessPool.Worker.x64.exe
C:\Program Files\PDF-XChange\PDF Tools\PXC.ProcessPool.Worker.x64.exe

If you would be open to testing the fix, please replace the original `ProcessPool.Worker.x64.exe` in the folder above, with this modified version - https://files.pdf-xchange.com/s/oRrqa7WTssK8fKR
We need some feedback before publicly releasing this workaround.
NOTE: The modified fix above is only applicable only to the x64 Editor/Tools v11.0.x.

Kind regards,

[MatthiasHecht]

Hello Daniel,

the fix worked fine for me, thanks!

> Language is now again available:

Screenshot 2026-08-19 091423.png

> OCR in a testfile worked as expected.

Greetings
Matthias

[Sean - PDF-XChange]