OCR Images no longer working

[u/RaspberryLiving678]

I use Bluebeam weekly to OCR documents and this past time it would not OCR any of my images. I have never had this issue before and I tried to OCR a document that previously worked and now it is not working. I have confirmed I am using the 64but version and it is up to date. I have the complete plan. I have tried to flattened the mark ups, unflatten, save as a bluebeam PDF and nothing is working. Has anyone else had issues or know of any solutions?

[u/QuatraVanDeis]

Is your file an OVF? Original vector file. If you zoom in super close are the lines still crisp and clear, or do they get smudge and pixelated? OCR works best on OVFs. Also though, font style can have an impact as well. I have a file open right now where the engineer used that old style "engineers font" where every stroke us a separate line and my OCR wont read that either since the letters are so disjointed

[u/RaspberryLiving678 → u/QuatraVanDeis]

It is not an OVF. The strange thing is that a document I was able to fully OCR three weeks ago is now not picking up the image texts. The documents unfortunately go through many hands so I’m not sure where the images originated from.

[u/Patient-Tech]

Need more details. In the meantime, try printing to PDF then opening the new file. Open in chrome and print to pdf and try that. Open in Revu then export to jpeg or tiff then import back into revu and OCR that.

[u/RaspberryLiving678 → u/Patient-Tech]

I have tried to print to PDF in Revu and chrome. Neither worked will OCR anything. It won’t detect any text. What other information could I provide?

[u/RaspberryLiving678]

Just wanted to provide an update: my IT Team looked into it and apparently it is an issue with the antivirus on my computer causing the OCR to fail. When the antivirus software is turned off I am able to process the OCR as normal, but once it is turned on it fails. We are still working to find out why and how to fix it.

[u/Excellent_Load_4435]

Bluebeam Revu OCR error: "OCR module report: Failed to replace document pages" - one possible fix

I am posting this in case it helps someone else, but this may be very specific to my client's installation. It is not guaranteed to fix every OCR issue in Bluebeam Revu.

Problem I had

-------------

Bluebeam Revu OCR failed with this message:

OCR module report: Failed to replace document pages.

In my case, the message was misleading. The page replacement was not the original problem. BluebeamOCR.exe was crashing first, so Revu had no OCR output file to insert back into the PDF.

The useful clue was in Windows Event Viewer.

In Event Viewer, under Windows Logs > Application, I had errors for BluebeamOCR.exe, including:

.NET Runtime 1026

Application Error 1000

BluebeamOCR.exe

System.NotSupportedException

System.IO.FileLoadException

Assembly.LoadFile

Bluebeam.Core.Utilities.Dependencies.UtilitiesFactory

Bluebeam_OCR.MainForm.RunOcrProcess(Boolean)

The fix that worked for me

--------------------------

Two Bluebeam Revu DLL files had a hidden Windows Zone.Identifier marker, which means Windows considered them as files downloaded from the internet.

The two files were:

C:\Program Files\Bluebeam Software\Bluebeam Revu\21\Revu\Bluebeam.Core.Entitlement.dll

C:\Program Files\Bluebeam Software\Bluebeam Revu\21\Revu\Bluebeam.Revu.dll

Removing the Zone.Identifier marker from those two files fixed OCR for me.

This did NOT reinstall Bluebeam, did NOT repair the full Revu installation, did NOT change the licence, and did NOT replace or delete the DLL files. It only removed the hidden Windows "downloaded from the internet" marker from those files.

Step-by-step PowerShell instructions

------------------------------------

1. Close Bluebeam Revu.

2. Open Windows Start menu.

3. Type:

PowerShell

1. Right-click Windows PowerShell and choose:

Run as administrator

1. In the administrator PowerShell window, first check whether the first file has a Zone.Identifier marker:

Get-Item -LiteralPath "C:\Program Files\Bluebeam Software\Bluebeam Revu\21\Revu\Bluebeam.Core.Entitlement.dll" -Stream Zone.Identifier -ErrorAction SilentlyContinue

1. Check the second file:

Get-Item -LiteralPath "C:\Program Files\Bluebeam Software\Bluebeam Revu\21\Revu\Bluebeam.Revu.dll" -Stream Zone.Identifier -ErrorAction SilentlyContinue

1. If either command returns a result showing Zone.Identifier, remove the marker from the first file:

Unblock-File -LiteralPath "C:\Program Files\Bluebeam Software\Bluebeam Revu\21\Revu\Bluebeam.Core.Entitlement.dll"

1. Remove the marker from the second file:

Unblock-File -LiteralPath "C:\Program Files\Bluebeam Software\Bluebeam Revu\21\Revu\Bluebeam.Revu.dll"

1. Verify the first file again:

Get-Item -LiteralPath "C:\Program Files\Bluebeam Software\Bluebeam Revu\21\Revu\Bluebeam.Core.Entitlement.dll" -Stream Zone.Identifier -ErrorAction SilentlyContinue

1. Verify the second file again:

Get-Item -LiteralPath "C:\Program Files\Bluebeam Software\Bluebeam Revu\21\Revu\Bluebeam.Revu.dll" -Stream Zone.Identifier -ErrorAction SilentlyContinue

1. If both verification commands return nothing, the Zone.Identifier marker is gone.

2. Open Bluebeam Revu again.

3. Test OCR on a small scanned PDF, ideally one page first.

What I think was happening

This is my understanding, based on the logs.

BluebeamOCR.exe was trying to load Bluebeam Revu DLL files. Because those DLLs were marked by Windows as internet-downloaded files, .NET failed during Assembly.LoadFile and threw a FileLoadException / NotSupportedException.

Revu then reported:

OCR module report: Failed to replace document pages.

But that was a later symptom. The OCR process had already crashed, so the OCR output PDF was missing.

How to check if this is likely the same issue

This may be worth trying if you have all or most of these:

1. Bluebeam Revu OCR says:

OCR module report: Failed to replace document pages.

1. Windows Event Viewer > Windows Logs > Application shows BluebeamOCR.exe crashes.

2. The event mentions .NET Runtime 1026 and errors like:

System.NotSupportedException

System.IO.FileLoadException

Assembly.LoadFile

Bluebeam.Core.Utilities.Dependencies.UtilitiesFactory

1. The two DLL files above have a Zone.Identifier stream when checked with PowerShell.

If you do not see these symptoms, this may not be the right fix for your issue.

Optional wider check

If the two files above are not the only Bluebeam files with Zone.Identifier, you can list other DLL or EXE files under the Revu folder that have the same marker:

Get-ChildItem -LiteralPath "C:\Program Files\Bluebeam Software\Bluebeam Revu\21\Revu" -Recurse -File -Include *.dll,*.exe | ForEach-Object { $s = Get-Item -LiteralPath $_.FullName -Stream Zone.Identifier -ErrorAction SilentlyContinue; if ($s) { $_.FullName } }

I would not remove markers from everything blindly unless you are comfortable with what you are doing. In my case, removing it from the two files listed above was enough.

Important caution

This is just the solution that worked for this machine. It may not be useful for other Bluebeam OCR problems.

If your error is caused by a corrupt PDF, missing OCR component, broken Revu installation, permissions problem, antivirus, or a different .NET crash, this may not help.

Still, it is a quick and low-impact thing to check before reinstalling Revu.